first commit

kivy_venv/lib/python3.11/site-packages/Cython/Build/BuildExecutable.py

@@ -0,0 +1,142 @@
+"""
+Compile a Python script into an executable that embeds CPython and run it.
+Requires CPython to be built as a shared library ('libpythonX.Y').
+
+Basic usage:
+
+    python cythonrun somefile.py [ARGS]
+"""
+
+from __future__ import absolute_import
+
+DEBUG = True
+
+import sys
+import os
+from distutils import sysconfig
+
+
+def get_config_var(name, default=''):
+    return sysconfig.get_config_var(name) or default
+
+INCDIR = sysconfig.get_python_inc()
+LIBDIR1 = get_config_var('LIBDIR')
+LIBDIR2 = get_config_var('LIBPL')
+PYLIB = get_config_var('LIBRARY')
+PYLIB_DYN = get_config_var('LDLIBRARY')
+if PYLIB_DYN == PYLIB:
+    # no shared library
+    PYLIB_DYN = ''
+else:
+    PYLIB_DYN = os.path.splitext(PYLIB_DYN[3:])[0] # 'lib(XYZ).so' -> XYZ
+
+CC = get_config_var('CC', os.environ.get('CC', ''))
+CFLAGS = get_config_var('CFLAGS') + ' ' + os.environ.get('CFLAGS', '')
+LINKCC = get_config_var('LINKCC', os.environ.get('LINKCC', CC))
+LINKFORSHARED = get_config_var('LINKFORSHARED')
+LIBS = get_config_var('LIBS')
+SYSLIBS = get_config_var('SYSLIBS')
+EXE_EXT = sysconfig.get_config_var('EXE')
+
+def _debug(msg, *args):
+    if DEBUG:
+        if args:
+            msg = msg % args
+        sys.stderr.write(msg + '\n')
+
+def dump_config():
+    _debug('INCDIR: %s', INCDIR)
+    _debug('LIBDIR1: %s', LIBDIR1)
+    _debug('LIBDIR2: %s', LIBDIR2)
+    _debug('PYLIB: %s', PYLIB)
+    _debug('PYLIB_DYN: %s', PYLIB_DYN)
+    _debug('CC: %s', CC)
+    _debug('CFLAGS: %s', CFLAGS)
+    _debug('LINKCC: %s', LINKCC)
+    _debug('LINKFORSHARED: %s', LINKFORSHARED)
+    _debug('LIBS: %s', LIBS)
+    _debug('SYSLIBS: %s', SYSLIBS)
+    _debug('EXE_EXT: %s', EXE_EXT)
+
+def runcmd(cmd, shell=True):
+    if shell:
+        cmd = ' '.join(cmd)
+        _debug(cmd)
+    else:
+        _debug(' '.join(cmd))
+
+    try:
+        import subprocess
+    except ImportError: # Python 2.3 ...
+        returncode = os.system(cmd)
+    else:
+        returncode = subprocess.call(cmd, shell=shell)
+
+    if returncode:
+        sys.exit(returncode)
+
+def clink(basename):
+    runcmd([LINKCC, '-o', basename + EXE_EXT, basename+'.o', '-L'+LIBDIR1, '-L'+LIBDIR2]
+           + [PYLIB_DYN and ('-l'+PYLIB_DYN) or os.path.join(LIBDIR1, PYLIB)]
+           + LIBS.split() + SYSLIBS.split() + LINKFORSHARED.split())
+
+def ccompile(basename):
+    runcmd([CC, '-c', '-o', basename+'.o', basename+'.c', '-I' + INCDIR] + CFLAGS.split())
+
+def cycompile(input_file, options=()):
+    from ..Compiler import Version, CmdLine, Main
+    options, sources = CmdLine.parse_command_line(list(options or ()) + ['--embed', input_file])
+    _debug('Using Cython %s to compile %s', Version.version, input_file)
+    result = Main.compile(sources, options)
+    if result.num_errors > 0:
+        sys.exit(1)
+
+def exec_file(program_name, args=()):
+    runcmd([os.path.abspath(program_name)] + list(args), shell=False)
+
+def build(input_file, compiler_args=(), force=False):
+    """
+    Build an executable program from a Cython module.
+
+    Returns the name of the executable file.
+    """
+    basename = os.path.splitext(input_file)[0]
+    exe_file = basename + EXE_EXT
+    if not force and os.path.abspath(exe_file) == os.path.abspath(input_file):
+        raise ValueError("Input and output file names are the same, refusing to overwrite")
+    if (not force and os.path.exists(exe_file) and os.path.exists(input_file)
+        and os.path.getmtime(input_file) <= os.path.getmtime(exe_file)):
+        _debug("File is up to date, not regenerating %s", exe_file)
+        return exe_file
+    cycompile(input_file, compiler_args)
+    ccompile(basename)
+    clink(basename)
+    return exe_file
+
+def build_and_run(args):
+    """
+    Build an executable program from a Cython module and runs it.
+
+    Arguments after the module name will be passed verbatimely to the
+    program.
+    """
+    cy_args = []
+    last_arg = None
+    for i, arg in enumerate(args):
+        if arg.startswith('-'):
+            cy_args.append(arg)
+        elif last_arg in ('-X', '--directive'):
+            cy_args.append(arg)
+        else:
+            input_file = arg
+            args = args[i+1:]
+            break
+        last_arg = arg
+    else:
+        raise ValueError('no input file provided')
+
+    program_name = build(input_file, cy_args)
+    exec_file(program_name, args)
+
+if __name__ == '__main__':
+    build_and_run(sys.argv[1:])

kivy_venv/lib/python3.11/site-packages/Cython/Build/Cythonize.py

@@ -0,0 +1,229 @@
+#!/usr/bin/env python
+
+from __future__ import absolute_import
+
+import os
+import shutil
+import tempfile
+from distutils.core import setup
+
+from .Dependencies import cythonize, extended_iglob
+from ..Utils import is_package_dir
+from ..Compiler import Options
+
+try:
+    import multiprocessing
+    parallel_compiles = int(multiprocessing.cpu_count() * 1.5)
+except ImportError:
+    multiprocessing = None
+    parallel_compiles = 0
+
+
+class _FakePool(object):
+    def map_async(self, func, args):
+        try:
+            from itertools import imap
+        except ImportError:
+            imap=map
+        for _ in imap(func, args):
+            pass
+
+    def close(self):
+        pass
+
+    def terminate(self):
+        pass
+
+    def join(self):
+        pass
+
+
+def parse_directives(option, name, value, parser):
+    dest = option.dest
+    old_directives = dict(getattr(parser.values, dest,
+                                  Options.get_directive_defaults()))
+    directives = Options.parse_directive_list(
+        value, relaxed_bool=True, current_settings=old_directives)
+    setattr(parser.values, dest, directives)
+
+
+def parse_options(option, name, value, parser):
+    dest = option.dest
+    options = dict(getattr(parser.values, dest, {}))
+    for opt in value.split(','):
+        if '=' in opt:
+            n, v = opt.split('=', 1)
+            v = v.lower() not in ('false', 'f', '0', 'no')
+        else:
+            n, v = opt, True
+        options[n] = v
+    setattr(parser.values, dest, options)
+
+
+def parse_compile_time_env(option, name, value, parser):
+    dest = option.dest
+    old_env = dict(getattr(parser.values, dest, {}))
+    new_env = Options.parse_compile_time_env(value, current_settings=old_env)
+    setattr(parser.values, dest, new_env)
+
+
+def find_package_base(path):
+    base_dir, package_path = os.path.split(path)
+    while os.path.isfile(os.path.join(base_dir, '__init__.py')):
+        base_dir, parent = os.path.split(base_dir)
+        package_path = '%s/%s' % (parent, package_path)
+    return base_dir, package_path
+
+
+def cython_compile(path_pattern, options):
+    pool = None
+    all_paths = map(os.path.abspath, extended_iglob(path_pattern))
+    try:
+        for path in all_paths:
+            if options.build_inplace:
+                base_dir = path
+                while not os.path.isdir(base_dir) or is_package_dir(base_dir):
+                    base_dir = os.path.dirname(base_dir)
+            else:
+                base_dir = None
+
+            if os.path.isdir(path):
+                # recursively compiling a package
+                paths = [os.path.join(path, '**', '*.{py,pyx}')]
+            else:
+                # assume it's a file(-like thing)
+                paths = [path]
+
+            ext_modules = cythonize(
+                paths,
+                nthreads=options.parallel,
+                exclude_failures=options.keep_going,
+                exclude=options.excludes,
+                compiler_directives=options.directives,
+                compile_time_env=options.compile_time_env,
+                force=options.force,
+                quiet=options.quiet,
+                depfile=options.depfile,
+                **options.options)
+
+            if ext_modules and options.build:
+                if len(ext_modules) > 1 and options.parallel > 1:
+                    if pool is None:
+                        try:
+                            pool = multiprocessing.Pool(options.parallel)
+                        except OSError:
+                            pool = _FakePool()
+                    pool.map_async(run_distutils, [
+                        (base_dir, [ext]) for ext in ext_modules])
+                else:
+                    run_distutils((base_dir, ext_modules))
+    except:
+        if pool is not None:
+            pool.terminate()
+        raise
+    else:
+        if pool is not None:
+            pool.close()
+            pool.join()
+
+
+def run_distutils(args):
+    base_dir, ext_modules = args
+    script_args = ['build_ext', '-i']
+    cwd = os.getcwd()
+    temp_dir = None
+    try:
+        if base_dir:
+            os.chdir(base_dir)
+            temp_dir = tempfile.mkdtemp(dir=base_dir)
+            script_args.extend(['--build-temp', temp_dir])
+        setup(
+            script_name='setup.py',
+            script_args=script_args,
+            ext_modules=ext_modules,
+        )
+    finally:
+        if base_dir:
+            os.chdir(cwd)
+            if temp_dir and os.path.isdir(temp_dir):
+                shutil.rmtree(temp_dir)
+
+
+def parse_args(args):
+    from optparse import OptionParser
+    parser = OptionParser(usage='%prog [options] [sources and packages]+')
+
+    parser.add_option('-X', '--directive', metavar='NAME=VALUE,...',
+                      dest='directives', default={}, type="str",
+                      action='callback', callback=parse_directives,
+                      help='set a compiler directive')
+    parser.add_option('-E', '--compile-time-env', metavar='NAME=VALUE,...',
+                      dest='compile_time_env', default={}, type="str",
+                      action='callback', callback=parse_compile_time_env,
+                      help='set a compile time environment variable')
+    parser.add_option('-s', '--option', metavar='NAME=VALUE',
+                      dest='options', default={}, type="str",
+                      action='callback', callback=parse_options,
+                      help='set a cythonize option')
+    parser.add_option('-2', dest='language_level', action='store_const', const=2, default=None,
+                      help='use Python 2 syntax mode by default')
+    parser.add_option('-3', dest='language_level', action='store_const', const=3,
+                      help='use Python 3 syntax mode by default')
+    parser.add_option('--3str', dest='language_level', action='store_const', const='3str',
+                      help='use Python 3 syntax mode by default')
+    parser.add_option('-a', '--annotate', dest='annotate', action='store_true',
+                      help='generate annotated HTML page for source files')
+
+    parser.add_option('-x', '--exclude', metavar='PATTERN', dest='excludes',
+                      action='append', default=[],
+                      help='exclude certain file patterns from the compilation')
+
+    parser.add_option('-b', '--build', dest='build', action='store_true',
+                      help='build extension modules using distutils')
+    parser.add_option('-i', '--inplace', dest='build_inplace', action='store_true',
+                      help='build extension modules in place using distutils (implies -b)')
+    parser.add_option('-j', '--parallel', dest='parallel', metavar='N',
+                      type=int, default=parallel_compiles,
+                      help=('run builds in N parallel jobs (default: %d)' %
+                            parallel_compiles or 1))
+    parser.add_option('-f', '--force', dest='force', action='store_true',
+                      help='force recompilation')
+    parser.add_option('-q', '--quiet', dest='quiet', action='store_true',
+                      help='be less verbose during compilation')
+
+    parser.add_option('--lenient', dest='lenient', action='store_true',
+                      help='increase Python compatibility by ignoring some compile time errors')
+    parser.add_option('-k', '--keep-going', dest='keep_going', action='store_true',
+                      help='compile as much as possible, ignore compilation failures')
+    parser.add_option('-M', '--depfile', action='store_true', help='produce depfiles for the sources')
+
+    options, args = parser.parse_args(args)
+    if not args:
+        parser.error("no source files provided")
+    if options.build_inplace:
+        options.build = True
+    if multiprocessing is None:
+        options.parallel = 0
+    if options.language_level:
+        assert options.language_level in (2, 3, '3str')
+        options.options['language_level'] = options.language_level
+    return options, args
+
+
+def main(args=None):
+    options, paths = parse_args(args)
+
+    if options.lenient:
+        # increase Python compatibility by ignoring compile time errors
+        Options.error_on_unknown_names = False
+        Options.error_on_uninitialized = False
+
+    if options.annotate:
+        Options.annotate = True
+
+    for path in paths:
+        cython_compile(path, options)
+
+
+if __name__ == '__main__':
+    main()

kivy_venv/lib/python3.11/site-packages/Cython/Build/Distutils.py

@@ -0,0 +1 @@
+from Cython.Distutils.build_ext import build_ext

kivy_venv/lib/python3.11/site-packages/Cython/Build/Inline.py

@@ -0,0 +1,376 @@
+from __future__ import absolute_import
+
+import hashlib
+import inspect
+import os
+import re
+import sys
+
+from distutils.core import Distribution, Extension
+from distutils.command.build_ext import build_ext
+
+import Cython
+from ..Compiler.Main import Context, default_options
+
+from ..Compiler.Visitor import CythonTransform, EnvTransform
+from ..Compiler.ParseTreeTransforms import SkipDeclarations
+from ..Compiler.TreeFragment import parse_from_strings
+from ..Compiler.StringEncoding import _unicode
+from .Dependencies import strip_string_literals, cythonize, cached_function
+from ..Compiler import Pipeline
+from ..Utils import get_cython_cache_dir
+import cython as cython_module
+
+
+IS_PY3 = sys.version_info >= (3,)
+
+# A utility function to convert user-supplied ASCII strings to unicode.
+if not IS_PY3:
+    def to_unicode(s):
+        if isinstance(s, bytes):
+            return s.decode('ascii')
+        else:
+            return s
+else:
+    to_unicode = lambda x: x
+
+if sys.version_info < (3, 5):
+    import imp
+    def load_dynamic(name, module_path):
+        return imp.load_dynamic(name, module_path)
+else:
+    import importlib.util as _importlib_util
+    def load_dynamic(name, module_path):
+        spec = _importlib_util.spec_from_file_location(name, module_path)
+        module = _importlib_util.module_from_spec(spec)
+        # sys.modules[name] = module
+        spec.loader.exec_module(module)
+        return module
+
+class UnboundSymbols(EnvTransform, SkipDeclarations):
+    def __init__(self):
+        CythonTransform.__init__(self, None)
+        self.unbound = set()
+    def visit_NameNode(self, node):
+        if not self.current_env().lookup(node.name):
+            self.unbound.add(node.name)
+        return node
+    def __call__(self, node):
+        super(UnboundSymbols, self).__call__(node)
+        return self.unbound
+
+
+@cached_function
+def unbound_symbols(code, context=None):
+    code = to_unicode(code)
+    if context is None:
+        context = Context([], default_options)
+    from ..Compiler.ParseTreeTransforms import AnalyseDeclarationsTransform
+    tree = parse_from_strings('(tree fragment)', code)
+    for phase in Pipeline.create_pipeline(context, 'pyx'):
+        if phase is None:
+            continue
+        tree = phase(tree)
+        if isinstance(phase, AnalyseDeclarationsTransform):
+            break
+    try:
+        import builtins
+    except ImportError:
+        import __builtin__ as builtins
+    return tuple(UnboundSymbols()(tree) - set(dir(builtins)))
+
+
+def unsafe_type(arg, context=None):
+    py_type = type(arg)
+    if py_type is int:
+        return 'long'
+    else:
+        return safe_type(arg, context)
+
+
+def safe_type(arg, context=None):
+    py_type = type(arg)
+    if py_type in (list, tuple, dict, str):
+        return py_type.__name__
+    elif py_type is complex:
+        return 'double complex'
+    elif py_type is float:
+        return 'double'
+    elif py_type is bool:
+        return 'bint'
+    elif 'numpy' in sys.modules and isinstance(arg, sys.modules['numpy'].ndarray):
+        return 'numpy.ndarray[numpy.%s_t, ndim=%s]' % (arg.dtype.name, arg.ndim)
+    else:
+        for base_type in py_type.__mro__:
+            if base_type.__module__ in ('__builtin__', 'builtins'):
+                return 'object'
+            module = context.find_module(base_type.__module__, need_pxd=False)
+            if module:
+                entry = module.lookup(base_type.__name__)
+                if entry.is_type:
+                    return '%s.%s' % (base_type.__module__, base_type.__name__)
+        return 'object'
+
+
+def _get_build_extension():
+    dist = Distribution()
+    # Ensure the build respects distutils configuration by parsing
+    # the configuration files
+    config_files = dist.find_config_files()
+    dist.parse_config_files(config_files)
+    build_extension = build_ext(dist)
+    build_extension.finalize_options()
+    return build_extension
+
+
+@cached_function
+def _create_context(cython_include_dirs):
+    return Context(list(cython_include_dirs), default_options)
+
+
+_cython_inline_cache = {}
+_cython_inline_default_context = _create_context(('.',))
+
+
+def _populate_unbound(kwds, unbound_symbols, locals=None, globals=None):
+    for symbol in unbound_symbols:
+        if symbol not in kwds:
+            if locals is None or globals is None:
+                calling_frame = inspect.currentframe().f_back.f_back.f_back
+                if locals is None:
+                    locals = calling_frame.f_locals
+                if globals is None:
+                    globals = calling_frame.f_globals
+            if symbol in locals:
+                kwds[symbol] = locals[symbol]
+            elif symbol in globals:
+                kwds[symbol] = globals[symbol]
+            else:
+                print("Couldn't find %r" % symbol)
+
+
+def _inline_key(orig_code, arg_sigs, language_level):
+    key = orig_code, arg_sigs, sys.version_info, sys.executable, language_level, Cython.__version__
+    return hashlib.sha1(_unicode(key).encode('utf-8')).hexdigest()
+
+
+def cython_inline(code, get_type=unsafe_type,
+                  lib_dir=os.path.join(get_cython_cache_dir(), 'inline'),
+                  cython_include_dirs=None, cython_compiler_directives=None,
+                  force=False, quiet=False, locals=None, globals=None, language_level=None, **kwds):
+
+    if get_type is None:
+        get_type = lambda x: 'object'
+    ctx = _create_context(tuple(cython_include_dirs)) if cython_include_dirs else _cython_inline_default_context
+
+    cython_compiler_directives = dict(cython_compiler_directives) if cython_compiler_directives else {}
+    if language_level is None and 'language_level' not in cython_compiler_directives:
+        language_level = '3str'
+    if language_level is not None:
+        cython_compiler_directives['language_level'] = language_level
+
+    # Fast path if this has been called in this session.
+    _unbound_symbols = _cython_inline_cache.get(code)
+    if _unbound_symbols is not None:
+        _populate_unbound(kwds, _unbound_symbols, locals, globals)
+        args = sorted(kwds.items())
+        arg_sigs = tuple([(get_type(value, ctx), arg) for arg, value in args])
+        key_hash = _inline_key(code, arg_sigs, language_level)
+        invoke = _cython_inline_cache.get((code, arg_sigs, key_hash))
+        if invoke is not None:
+            arg_list = [arg[1] for arg in args]
+            return invoke(*arg_list)
+
+    orig_code = code
+    code = to_unicode(code)
+    code, literals = strip_string_literals(code)
+    code = strip_common_indent(code)
+    if locals is None:
+        locals = inspect.currentframe().f_back.f_back.f_locals
+    if globals is None:
+        globals = inspect.currentframe().f_back.f_back.f_globals
+    try:
+        _cython_inline_cache[orig_code] = _unbound_symbols = unbound_symbols(code)
+        _populate_unbound(kwds, _unbound_symbols, locals, globals)
+    except AssertionError:
+        if not quiet:
+            # Parsing from strings not fully supported (e.g. cimports).
+            print("Could not parse code as a string (to extract unbound symbols).")
+
+    cimports = []
+    for name, arg in list(kwds.items()):
+        if arg is cython_module:
+            cimports.append('\ncimport cython as %s' % name)
+            del kwds[name]
+    arg_names = sorted(kwds)
+    arg_sigs = tuple([(get_type(kwds[arg], ctx), arg) for arg in arg_names])
+    key_hash = _inline_key(orig_code, arg_sigs, language_level)
+    module_name = "_cython_inline_" + key_hash
+
+    if module_name in sys.modules:
+        module = sys.modules[module_name]
+
+    else:
+        build_extension = None
+        if cython_inline.so_ext is None:
+            # Figure out and cache current extension suffix
+            build_extension = _get_build_extension()
+            cython_inline.so_ext = build_extension.get_ext_filename('')
+
+        module_path = os.path.join(lib_dir, module_name + cython_inline.so_ext)
+
+        if not os.path.exists(lib_dir):
+            os.makedirs(lib_dir)
+        if force or not os.path.isfile(module_path):
+            cflags = []
+            c_include_dirs = []
+            qualified = re.compile(r'([.\w]+)[.]')
+            for type, _ in arg_sigs:
+                m = qualified.match(type)
+                if m:
+                    cimports.append('\ncimport %s' % m.groups()[0])
+                    # one special case
+                    if m.groups()[0] == 'numpy':
+                        import numpy
+                        c_include_dirs.append(numpy.get_include())
+                        # cflags.append('-Wno-unused')
+            module_body, func_body = extract_func_code(code)
+            params = ', '.join(['%s %s' % a for a in arg_sigs])
+            module_code = """
+%(module_body)s
+%(cimports)s
+def __invoke(%(params)s):
+%(func_body)s
+    return locals()
+            """ % {'cimports': '\n'.join(cimports),
+                   'module_body': module_body,
+                   'params': params,
+                   'func_body': func_body }
+            for key, value in literals.items():
+                module_code = module_code.replace(key, value)
+            pyx_file = os.path.join(lib_dir, module_name + '.pyx')
+            fh = open(pyx_file, 'w')
+            try:
+                fh.write(module_code)
+            finally:
+                fh.close()
+            extension = Extension(
+                name = module_name,
+                sources = [pyx_file],
+                include_dirs = c_include_dirs,
+                extra_compile_args = cflags)
+            if build_extension is None:
+                build_extension = _get_build_extension()
+            build_extension.extensions = cythonize(
+                [extension],
+                include_path=cython_include_dirs or ['.'],
+                compiler_directives=cython_compiler_directives,
+                quiet=quiet)
+            build_extension.build_temp = os.path.dirname(pyx_file)
+            build_extension.build_lib  = lib_dir
+            build_extension.run()
+
+        module = load_dynamic(module_name, module_path)
+
+    _cython_inline_cache[orig_code, arg_sigs, key_hash] = module.__invoke
+    arg_list = [kwds[arg] for arg in arg_names]
+    return module.__invoke(*arg_list)
+
+
+# Cached suffix used by cython_inline above.  None should get
+# overridden with actual value upon the first cython_inline invocation
+cython_inline.so_ext = None
+
+_find_non_space = re.compile('[^ ]').search
+
+
+def strip_common_indent(code):
+    min_indent = None
+    lines = code.splitlines()
+    for line in lines:
+        match = _find_non_space(line)
+        if not match:
+            continue  # blank
+        indent = match.start()
+        if line[indent] == '#':
+            continue  # comment
+        if min_indent is None or min_indent > indent:
+            min_indent = indent
+    for ix, line in enumerate(lines):
+        match = _find_non_space(line)
+        if not match or not line or line[indent:indent+1] == '#':
+            continue
+        lines[ix] = line[min_indent:]
+    return '\n'.join(lines)
+
+
+module_statement = re.compile(r'^((cdef +(extern|class))|cimport|(from .+ cimport)|(from .+ import +[*]))')
+def extract_func_code(code):
+    module = []
+    function = []
+    current = function
+    code = code.replace('\t', ' ')
+    lines = code.split('\n')
+    for line in lines:
+        if not line.startswith(' '):
+            if module_statement.match(line):
+                current = module
+            else:
+                current = function
+        current.append(line)
+    return '\n'.join(module), '    ' + '\n    '.join(function)
+
+
+try:
+    from inspect import getcallargs
+except ImportError:
+    def getcallargs(func, *arg_values, **kwd_values):
+        all = {}
+        args, varargs, kwds, defaults = inspect.getargspec(func)
+        if varargs is not None:
+            all[varargs] = arg_values[len(args):]
+        for name, value in zip(args, arg_values):
+            all[name] = value
+        for name, value in list(kwd_values.items()):
+            if name in args:
+                if name in all:
+                    raise TypeError("Duplicate argument %s" % name)
+                all[name] = kwd_values.pop(name)
+        if kwds is not None:
+            all[kwds] = kwd_values
+        elif kwd_values:
+            raise TypeError("Unexpected keyword arguments: %s" % list(kwd_values))
+        if defaults is None:
+            defaults = ()
+        first_default = len(args) - len(defaults)
+        for ix, name in enumerate(args):
+            if name not in all:
+                if ix >= first_default:
+                    all[name] = defaults[ix - first_default]
+                else:
+                    raise TypeError("Missing argument: %s" % name)
+        return all
+
+
+def get_body(source):
+    ix = source.index(':')
+    if source[:5] == 'lambda':
+        return "return %s" % source[ix+1:]
+    else:
+        return source[ix+1:]
+
+
+# Lots to be done here... It would be especially cool if compiled functions
+# could invoke each other quickly.
+class RuntimeCompiledFunction(object):
+
+    def __init__(self, f):
+        self._f = f
+        self._body = get_body(inspect.getsource(f))
+
+    def __call__(self, *args, **kwds):
+        all = getcallargs(self._f, *args, **kwds)
+        if IS_PY3:
+            return cython_inline(self._body, locals=self._f.__globals__, globals=self._f.__globals__, **all)
+        else:
+            return cython_inline(self._body, locals=self._f.func_globals, globals=self._f.func_globals, **all)

kivy_venv/lib/python3.11/site-packages/Cython/Build/IpythonMagic.py

@@ -0,0 +1,565 @@
+# -*- coding: utf-8 -*-
+"""
+=====================
+Cython related magics
+=====================
+
+Magic command interface for interactive work with Cython
+
+.. note::
+
+  The ``Cython`` package needs to be installed separately. It
+  can be obtained using ``easy_install`` or ``pip``.
+
+Usage
+=====
+
+To enable the magics below, execute ``%load_ext cython``.
+
+``%%cython``
+
+{CYTHON_DOC}
+
+``%%cython_inline``
+
+{CYTHON_INLINE_DOC}
+
+``%%cython_pyximport``
+
+{CYTHON_PYXIMPORT_DOC}
+
+Author:
+* Brian Granger
+
+Code moved from IPython and adapted by:
+* Martín Gaitán
+
+Parts of this code were taken from Cython.inline.
+"""
+#-----------------------------------------------------------------------------
+# Copyright (C) 2010-2011, IPython Development Team.
+#
+# Distributed under the terms of the Modified BSD License.
+#
+# The full license is in the file ipython-COPYING.rst, distributed with this software.
+#-----------------------------------------------------------------------------
+
+from __future__ import absolute_import, print_function
+
+import imp
+import io
+import os
+import re
+import sys
+import time
+import copy
+import distutils.log
+import textwrap
+
+IO_ENCODING = sys.getfilesystemencoding()
+IS_PY2 = sys.version_info[0] < 3
+
+try:
+    reload
+except NameError:   # Python 3
+    from imp import reload
+
+try:
+    import hashlib
+except ImportError:
+    import md5 as hashlib
+
+from distutils.core import Distribution, Extension
+from distutils.command.build_ext import build_ext
+
+from IPython.core import display
+from IPython.core import magic_arguments
+from IPython.core.magic import Magics, magics_class, cell_magic
+try:
+    from IPython.paths import get_ipython_cache_dir
+except ImportError:
+    # older IPython version
+    from IPython.utils.path import get_ipython_cache_dir
+from IPython.utils.text import dedent
+
+from ..Shadow import __version__ as cython_version
+from ..Compiler.Errors import CompileError
+from .Inline import cython_inline
+from .Dependencies import cythonize
+
+
+PGO_CONFIG = {
+    'gcc': {
+        'gen': ['-fprofile-generate', '-fprofile-dir={TEMPDIR}'],
+        'use': ['-fprofile-use', '-fprofile-correction', '-fprofile-dir={TEMPDIR}'],
+    },
+    # blind copy from 'configure' script in CPython 3.7
+    'icc': {
+        'gen': ['-prof-gen'],
+        'use': ['-prof-use'],
+    }
+}
+PGO_CONFIG['mingw32'] = PGO_CONFIG['gcc']
+
+
+if IS_PY2:
+    def encode_fs(name):
+        return name if isinstance(name, bytes) else name.encode(IO_ENCODING)
+else:
+    def encode_fs(name):
+        return name
+
+
+@magics_class
+class CythonMagics(Magics):
+
+    def __init__(self, shell):
+        super(CythonMagics, self).__init__(shell)
+        self._reloads = {}
+        self._code_cache = {}
+        self._pyximport_installed = False
+
+    def _import_all(self, module):
+        mdict = module.__dict__
+        if '__all__' in mdict:
+            keys = mdict['__all__']
+        else:
+            keys = [k for k in mdict if not k.startswith('_')]
+
+        for k in keys:
+            try:
+                self.shell.push({k: mdict[k]})
+            except KeyError:
+                msg = "'module' object has no attribute '%s'" % k
+                raise AttributeError(msg)
+
+    @cell_magic
+    def cython_inline(self, line, cell):
+        """Compile and run a Cython code cell using Cython.inline.
+
+        This magic simply passes the body of the cell to Cython.inline
+        and returns the result. If the variables `a` and `b` are defined
+        in the user's namespace, here is a simple example that returns
+        their sum::
+
+            %%cython_inline
+            return a+b
+
+        For most purposes, we recommend the usage of the `%%cython` magic.
+        """
+        locs = self.shell.user_global_ns
+        globs = self.shell.user_ns
+        return cython_inline(cell, locals=locs, globals=globs)
+
+    @cell_magic
+    def cython_pyximport(self, line, cell):
+        """Compile and import a Cython code cell using pyximport.
+
+        The contents of the cell are written to a `.pyx` file in the current
+        working directory, which is then imported using `pyximport`. This
+        magic requires a module name to be passed::
+
+            %%cython_pyximport modulename
+            def f(x):
+                return 2.0*x
+
+        The compiled module is then imported and all of its symbols are
+        injected into the user's namespace. For most purposes, we recommend
+        the usage of the `%%cython` magic.
+        """
+        module_name = line.strip()
+        if not module_name:
+            raise ValueError('module name must be given')
+        fname = module_name + '.pyx'
+        with io.open(fname, 'w', encoding='utf-8') as f:
+            f.write(cell)
+        if 'pyximport' not in sys.modules or not self._pyximport_installed:
+            import pyximport
+            pyximport.install()
+            self._pyximport_installed = True
+        if module_name in self._reloads:
+            module = self._reloads[module_name]
+            # Note: reloading extension modules is not actually supported
+            # (requires PEP-489 reinitialisation support).
+            # Don't know why this should ever have worked as it reads here.
+            # All we really need to do is to update the globals below.
+            #reload(module)
+        else:
+            __import__(module_name)
+            module = sys.modules[module_name]
+            self._reloads[module_name] = module
+        self._import_all(module)
+
+    @magic_arguments.magic_arguments()
+    @magic_arguments.argument(
+        '-a', '--annotate', action='store_true', default=False,
+        help="Produce a colorized HTML version of the source."
+    )
+    @magic_arguments.argument(
+        '-+', '--cplus', action='store_true', default=False,
+        help="Output a C++ rather than C file."
+    )
+    @magic_arguments.argument(
+        '-3', dest='language_level', action='store_const', const=3, default=None,
+        help="Select Python 3 syntax."
+    )
+    @magic_arguments.argument(
+        '-2', dest='language_level', action='store_const', const=2, default=None,
+        help="Select Python 2 syntax."
+    )
+    @magic_arguments.argument(
+        '-f', '--force', action='store_true', default=False,
+        help="Force the compilation of a new module, even if the source has been "
+             "previously compiled."
+    )
+    @magic_arguments.argument(
+        '-c', '--compile-args', action='append', default=[],
+        help="Extra flags to pass to compiler via the `extra_compile_args` "
+             "Extension flag (can be specified  multiple times)."
+    )
+    @magic_arguments.argument(
+        '--link-args', action='append', default=[],
+        help="Extra flags to pass to linker via the `extra_link_args` "
+             "Extension flag (can be specified  multiple times)."
+    )
+    @magic_arguments.argument(
+        '-l', '--lib', action='append', default=[],
+        help="Add a library to link the extension against (can be specified "
+             "multiple times)."
+    )
+    @magic_arguments.argument(
+        '-n', '--name',
+        help="Specify a name for the Cython module."
+    )
+    @magic_arguments.argument(
+        '-L', dest='library_dirs', metavar='dir', action='append', default=[],
+        help="Add a path to the list of library directories (can be specified "
+             "multiple times)."
+    )
+    @magic_arguments.argument(
+        '-I', '--include', action='append', default=[],
+        help="Add a path to the list of include directories (can be specified "
+             "multiple times)."
+    )
+    @magic_arguments.argument(
+        '-S', '--src', action='append', default=[],
+        help="Add a path to the list of src files (can be specified "
+             "multiple times)."
+    )
+    @magic_arguments.argument(
+        '--pgo', dest='pgo', action='store_true', default=False,
+        help=("Enable profile guided optimisation in the C compiler. "
+              "Compiles the cell twice and executes it in between to generate a runtime profile.")
+    )
+    @magic_arguments.argument(
+        '--verbose', dest='quiet', action='store_false', default=True,
+        help=("Print debug information like generated .c/.cpp file location "
+              "and exact gcc/g++ command invoked.")
+    )
+    @cell_magic
+    def cython(self, line, cell):
+        """Compile and import everything from a Cython code cell.
+
+        The contents of the cell are written to a `.pyx` file in the
+        directory `IPYTHONDIR/cython` using a filename with the hash of the
+        code. This file is then cythonized and compiled. The resulting module
+        is imported and all of its symbols are injected into the user's
+        namespace. The usage is similar to that of `%%cython_pyximport` but
+        you don't have to pass a module name::
+
+            %%cython
+            def f(x):
+                return 2.0*x
+
+        To compile OpenMP codes, pass the required  `--compile-args`
+        and `--link-args`.  For example with gcc::
+
+            %%cython --compile-args=-fopenmp --link-args=-fopenmp
+            ...
+
+        To enable profile guided optimisation, pass the ``--pgo`` option.
+        Note that the cell itself needs to take care of establishing a suitable
+        profile when executed. This can be done by implementing the functions to
+        optimise, and then calling them directly in the same cell on some realistic
+        training data like this::
+
+            %%cython --pgo
+            def critical_function(data):
+                for item in data:
+                    ...
+
+            # execute function several times to build profile
+            from somewhere import some_typical_data
+            for _ in range(100):
+                critical_function(some_typical_data)
+
+        In Python 3.5 and later, you can distinguish between the profile and
+        non-profile runs as follows::
+
+            if "_pgo_" in __name__:
+                ...  # execute critical code here
+        """
+        args = magic_arguments.parse_argstring(self.cython, line)
+        code = cell if cell.endswith('\n') else cell + '\n'
+        lib_dir = os.path.join(get_ipython_cache_dir(), 'cython')
+        key = (code, line, sys.version_info, sys.executable, cython_version)
+
+        if not os.path.exists(lib_dir):
+            os.makedirs(lib_dir)
+
+        if args.pgo:
+            key += ('pgo',)
+        if args.force:
+            # Force a new module name by adding the current time to the
+            # key which is hashed to determine the module name.
+            key += (time.time(),)
+
+        if args.name:
+            module_name = str(args.name)  # no-op in Py3
+        else:
+            module_name = "_cython_magic_" + hashlib.md5(str(key).encode('utf-8')).hexdigest()
+        html_file = os.path.join(lib_dir, module_name + '.html')
+        module_path = os.path.join(lib_dir, module_name + self.so_ext)
+
+        have_module = os.path.isfile(module_path)
+        need_cythonize = args.pgo or not have_module
+
+        if args.annotate:
+            if not os.path.isfile(html_file):
+                need_cythonize = True
+
+        extension = None
+        if need_cythonize:
+            extensions = self._cythonize(module_name, code, lib_dir, args, quiet=args.quiet)
+            if extensions is None:
+                # Compilation failed and printed error message
+                return None
+            assert len(extensions) == 1
+            extension = extensions[0]
+            self._code_cache[key] = module_name
+
+            if args.pgo:
+                self._profile_pgo_wrapper(extension, lib_dir)
+
+        try:
+            self._build_extension(extension, lib_dir, pgo_step_name='use' if args.pgo else None,
+                                  quiet=args.quiet)
+        except distutils.errors.CompileError:
+            # Build failed and printed error message
+            return None
+
+        module = imp.load_dynamic(module_name, module_path)
+        self._import_all(module)
+
+        if args.annotate:
+            try:
+                with io.open(html_file, encoding='utf-8') as f:
+                    annotated_html = f.read()
+            except IOError as e:
+                # File could not be opened. Most likely the user has a version
+                # of Cython before 0.15.1 (when `cythonize` learned the
+                # `force` keyword argument) and has already compiled this
+                # exact source without annotation.
+                print('Cython completed successfully but the annotated '
+                      'source could not be read.', file=sys.stderr)
+                print(e, file=sys.stderr)
+            else:
+                return display.HTML(self.clean_annotated_html(annotated_html))
+
+    def _profile_pgo_wrapper(self, extension, lib_dir):
+        """
+        Generate a .c file for a separate extension module that calls the
+        module init function of the original module.  This makes sure that the
+        PGO profiler sees the correct .o file of the final module, but it still
+        allows us to import the module under a different name for profiling,
+        before recompiling it into the PGO optimised module.  Overwriting and
+        reimporting the same shared library is not portable.
+        """
+        extension = copy.copy(extension)  # shallow copy, do not modify sources in place!
+        module_name = extension.name
+        pgo_module_name = '_pgo_' + module_name
+        pgo_wrapper_c_file = os.path.join(lib_dir, pgo_module_name + '.c')
+        with io.open(pgo_wrapper_c_file, 'w', encoding='utf-8') as f:
+            f.write(textwrap.dedent(u"""
+            #include "Python.h"
+            #if PY_MAJOR_VERSION < 3
+            extern PyMODINIT_FUNC init%(module_name)s(void);
+            PyMODINIT_FUNC init%(pgo_module_name)s(void); /*proto*/
+            PyMODINIT_FUNC init%(pgo_module_name)s(void) {
+                PyObject *sys_modules;
+                init%(module_name)s();  if (PyErr_Occurred()) return;
+                sys_modules = PyImport_GetModuleDict();  /* borrowed, no exception, "never" fails */
+                if (sys_modules) {
+                    PyObject *module = PyDict_GetItemString(sys_modules, "%(module_name)s");  if (!module) return;
+                    PyDict_SetItemString(sys_modules, "%(pgo_module_name)s", module);
+                    Py_DECREF(module);
+                }
+            }
+            #else
+            extern PyMODINIT_FUNC PyInit_%(module_name)s(void);
+            PyMODINIT_FUNC PyInit_%(pgo_module_name)s(void); /*proto*/
+            PyMODINIT_FUNC PyInit_%(pgo_module_name)s(void) {
+                return PyInit_%(module_name)s();
+            }
+            #endif
+            """ % {'module_name': module_name, 'pgo_module_name': pgo_module_name}))
+
+        extension.sources = extension.sources + [pgo_wrapper_c_file]  # do not modify in place!
+        extension.name = pgo_module_name
+
+        self._build_extension(extension, lib_dir, pgo_step_name='gen')
+
+        # import and execute module code to generate profile
+        so_module_path = os.path.join(lib_dir, pgo_module_name + self.so_ext)
+        imp.load_dynamic(pgo_module_name, so_module_path)
+
+    def _cythonize(self, module_name, code, lib_dir, args, quiet=True):
+        pyx_file = os.path.join(lib_dir, module_name + '.pyx')
+        pyx_file = encode_fs(pyx_file)
+
+        c_include_dirs = args.include
+        c_src_files = list(map(str, args.src))
+        if 'numpy' in code:
+            import numpy
+            c_include_dirs.append(numpy.get_include())
+        with io.open(pyx_file, 'w', encoding='utf-8') as f:
+            f.write(code)
+        extension = Extension(
+            name=module_name,
+            sources=[pyx_file] + c_src_files,
+            include_dirs=c_include_dirs,
+            library_dirs=args.library_dirs,
+            extra_compile_args=args.compile_args,
+            extra_link_args=args.link_args,
+            libraries=args.lib,
+            language='c++' if args.cplus else 'c',
+        )
+        try:
+            opts = dict(
+                quiet=quiet,
+                annotate=args.annotate,
+                force=True,
+            )
+            if args.language_level is not None:
+                assert args.language_level in (2, 3)
+                opts['language_level'] = args.language_level
+            elif sys.version_info[0] >= 3:
+                opts['language_level'] = 3
+            return cythonize([extension], **opts)
+        except CompileError:
+            return None
+
+    def _build_extension(self, extension, lib_dir, temp_dir=None, pgo_step_name=None, quiet=True):
+        build_extension = self._get_build_extension(
+            extension, lib_dir=lib_dir, temp_dir=temp_dir, pgo_step_name=pgo_step_name)
+        old_threshold = None
+        try:
+            if not quiet:
+                old_threshold = distutils.log.set_threshold(distutils.log.DEBUG)
+            build_extension.run()
+        finally:
+            if not quiet and old_threshold is not None:
+                distutils.log.set_threshold(old_threshold)
+
+    def _add_pgo_flags(self, build_extension, step_name, temp_dir):
+        compiler_type = build_extension.compiler.compiler_type
+        if compiler_type == 'unix':
+            compiler_cmd = build_extension.compiler.compiler_so
+            # TODO: we could try to call "[cmd] --version" for better insights
+            if not compiler_cmd:
+                pass
+            elif 'clang' in compiler_cmd or 'clang' in compiler_cmd[0]:
+                compiler_type = 'clang'
+            elif 'icc' in compiler_cmd or 'icc' in compiler_cmd[0]:
+                compiler_type = 'icc'
+            elif 'gcc' in compiler_cmd or 'gcc' in compiler_cmd[0]:
+                compiler_type = 'gcc'
+            elif 'g++' in compiler_cmd or 'g++' in compiler_cmd[0]:
+                compiler_type = 'gcc'
+        config = PGO_CONFIG.get(compiler_type)
+        orig_flags = []
+        if config and step_name in config:
+            flags = [f.format(TEMPDIR=temp_dir) for f in config[step_name]]
+            for extension in build_extension.extensions:
+                orig_flags.append((extension.extra_compile_args, extension.extra_link_args))
+                extension.extra_compile_args = extension.extra_compile_args + flags
+                extension.extra_link_args = extension.extra_link_args + flags
+        else:
+            print("No PGO %s configuration known for C compiler type '%s'" % (step_name, compiler_type),
+                  file=sys.stderr)
+        return orig_flags
+
+    @property
+    def so_ext(self):
+        """The extension suffix for compiled modules."""
+        try:
+            return self._so_ext
+        except AttributeError:
+            self._so_ext = self._get_build_extension().get_ext_filename('')
+            return self._so_ext
+
+    def _clear_distutils_mkpath_cache(self):
+        """clear distutils mkpath cache
+
+        prevents distutils from skipping re-creation of dirs that have been removed
+        """
+        try:
+            from distutils.dir_util import _path_created
+        except ImportError:
+            pass
+        else:
+            _path_created.clear()
+
+    def _get_build_extension(self, extension=None, lib_dir=None, temp_dir=None,
+                             pgo_step_name=None, _build_ext=build_ext):
+        self._clear_distutils_mkpath_cache()
+        dist = Distribution()
+        config_files = dist.find_config_files()
+        try:
+            config_files.remove('setup.cfg')
+        except ValueError:
+            pass
+        dist.parse_config_files(config_files)
+
+        if not temp_dir:
+            temp_dir = lib_dir
+        add_pgo_flags = self._add_pgo_flags
+
+        if pgo_step_name:
+            base_build_ext = _build_ext
+            class _build_ext(_build_ext):
+                def build_extensions(self):
+                    add_pgo_flags(self, pgo_step_name, temp_dir)
+                    base_build_ext.build_extensions(self)
+
+        build_extension = _build_ext(dist)
+        build_extension.finalize_options()
+        if temp_dir:
+            temp_dir = encode_fs(temp_dir)
+            build_extension.build_temp = temp_dir
+        if lib_dir:
+            lib_dir = encode_fs(lib_dir)
+            build_extension.build_lib = lib_dir
+        if extension is not None:
+            build_extension.extensions = [extension]
+        return build_extension
+
+    @staticmethod
+    def clean_annotated_html(html):
+        """Clean up the annotated HTML source.
+
+        Strips the link to the generated C or C++ file, which we do not
+        present to the user.
+        """
+        r = re.compile('<p>Raw output: <a href="(.*)">(.*)</a>')
+        html = '\n'.join(l for l in html.splitlines() if not r.match(l))
+        return html
+
+__doc__ = __doc__.format(
+    # rST doesn't see the -+ flag as part of an option list, so we
+    # hide it from the module-level docstring.
+    CYTHON_DOC=dedent(CythonMagics.cython.__doc__\
+                                  .replace('-+, --cplus', '--cplus    ')),
+    CYTHON_INLINE_DOC=dedent(CythonMagics.cython_inline.__doc__),
+    CYTHON_PYXIMPORT_DOC=dedent(CythonMagics.cython_pyximport.__doc__),
+)

kivy_venv/lib/python3.11/site-packages/Cython/Build/Tests/TestCyCache.py

@@ -0,0 +1,106 @@
+import difflib
+import glob
+import gzip
+import os
+import tempfile
+
+import Cython.Build.Dependencies
+import Cython.Utils
+from Cython.TestUtils import CythonTest
+
+
+class TestCyCache(CythonTest):
+
+    def setUp(self):
+        CythonTest.setUp(self)
+        self.temp_dir = tempfile.mkdtemp(
+            prefix='cycache-test',
+            dir='TEST_TMP' if os.path.isdir('TEST_TMP') else None)
+        self.src_dir = tempfile.mkdtemp(prefix='src', dir=self.temp_dir)
+        self.cache_dir = tempfile.mkdtemp(prefix='cache', dir=self.temp_dir)
+
+    def cache_files(self, file_glob):
+        return glob.glob(os.path.join(self.cache_dir, file_glob))
+
+    def fresh_cythonize(self, *args, **kwargs):
+        Cython.Utils.clear_function_caches()
+        Cython.Build.Dependencies._dep_tree = None  # discard method caches
+        Cython.Build.Dependencies.cythonize(*args, **kwargs)
+
+    def test_cycache_switch(self):
+        content1 = 'value = 1\n'
+        content2 = 'value = 2\n'
+        a_pyx = os.path.join(self.src_dir, 'a.pyx')
+        a_c = a_pyx[:-4] + '.c'
+
+        open(a_pyx, 'w').write(content1)
+        self.fresh_cythonize(a_pyx, cache=self.cache_dir)
+        self.fresh_cythonize(a_pyx, cache=self.cache_dir)
+        self.assertEqual(1, len(self.cache_files('a.c*')))
+        a_contents1 = open(a_c).read()
+        os.unlink(a_c)
+
+        open(a_pyx, 'w').write(content2)
+        self.fresh_cythonize(a_pyx, cache=self.cache_dir)
+        a_contents2 = open(a_c).read()
+        os.unlink(a_c)
+
+        self.assertNotEqual(a_contents1, a_contents2, 'C file not changed!')
+        self.assertEqual(2, len(self.cache_files('a.c*')))
+
+        open(a_pyx, 'w').write(content1)
+        self.fresh_cythonize(a_pyx, cache=self.cache_dir)
+        self.assertEqual(2, len(self.cache_files('a.c*')))
+        a_contents = open(a_c).read()
+        self.assertEqual(
+            a_contents, a_contents1,
+            msg='\n'.join(list(difflib.unified_diff(
+                a_contents.split('\n'), a_contents1.split('\n')))[:10]))
+
+    def test_cycache_uses_cache(self):
+        a_pyx = os.path.join(self.src_dir, 'a.pyx')
+        a_c = a_pyx[:-4] + '.c'
+        open(a_pyx, 'w').write('pass')
+        self.fresh_cythonize(a_pyx, cache=self.cache_dir)
+        a_cache = os.path.join(self.cache_dir, os.listdir(self.cache_dir)[0])
+        gzip.GzipFile(a_cache, 'wb').write('fake stuff'.encode('ascii'))
+        os.unlink(a_c)
+        self.fresh_cythonize(a_pyx, cache=self.cache_dir)
+        a_contents = open(a_c).read()
+        self.assertEqual(a_contents, 'fake stuff',
+                         'Unexpected contents: %s...' % a_contents[:100])
+
+    def test_multi_file_output(self):
+        a_pyx = os.path.join(self.src_dir, 'a.pyx')
+        a_c = a_pyx[:-4] + '.c'
+        a_h = a_pyx[:-4] + '.h'
+        a_api_h = a_pyx[:-4] + '_api.h'
+        open(a_pyx, 'w').write('cdef public api int foo(int x): return x\n')
+        self.fresh_cythonize(a_pyx, cache=self.cache_dir)
+        expected = [a_c, a_h, a_api_h]
+        for output in expected:
+            self.assertTrue(os.path.exists(output), output)
+            os.unlink(output)
+        self.fresh_cythonize(a_pyx, cache=self.cache_dir)
+        for output in expected:
+            self.assertTrue(os.path.exists(output), output)
+
+    def test_options_invalidation(self):
+        hash_pyx = os.path.join(self.src_dir, 'options.pyx')
+        hash_c = hash_pyx[:-len('.pyx')] + '.c'
+
+        open(hash_pyx, 'w').write('pass')
+        self.fresh_cythonize(hash_pyx, cache=self.cache_dir, cplus=False)
+        self.assertEqual(1, len(self.cache_files('options.c*')))
+
+        os.unlink(hash_c)
+        self.fresh_cythonize(hash_pyx, cache=self.cache_dir, cplus=True)
+        self.assertEqual(2, len(self.cache_files('options.c*')))
+
+        os.unlink(hash_c)
+        self.fresh_cythonize(hash_pyx, cache=self.cache_dir, cplus=False, show_version=False)
+        self.assertEqual(2, len(self.cache_files('options.c*')))
+
+        os.unlink(hash_c)
+        self.fresh_cythonize(hash_pyx, cache=self.cache_dir, cplus=False, show_version=True)
+        self.assertEqual(2, len(self.cache_files('options.c*')))

kivy_venv/lib/python3.11/site-packages/Cython/Build/Tests/TestInline.py

@@ -0,0 +1,96 @@
+import os, tempfile
+from Cython.Shadow import inline
+from Cython.Build.Inline import safe_type
+from Cython.TestUtils import CythonTest
+
+try:
+    import numpy
+    has_numpy = True
+except:
+    has_numpy = False
+
+test_kwds = dict(force=True, quiet=True)
+
+global_value = 100
+
+class TestInline(CythonTest):
+    def setUp(self):
+        CythonTest.setUp(self)
+        self.test_kwds = dict(test_kwds)
+        if os.path.isdir('TEST_TMP'):
+            lib_dir = os.path.join('TEST_TMP','inline')
+        else:
+            lib_dir = tempfile.mkdtemp(prefix='cython_inline_')
+        self.test_kwds['lib_dir'] = lib_dir
+
+    def test_simple(self):
+        self.assertEqual(inline("return 1+2", **self.test_kwds), 3)
+
+    def test_types(self):
+        self.assertEqual(inline("""
+            cimport cython
+            return cython.typeof(a), cython.typeof(b)
+        """, a=1.0, b=[], **self.test_kwds), ('double', 'list object'))
+
+    def test_locals(self):
+        a = 1
+        b = 2
+        self.assertEqual(inline("return a+b", **self.test_kwds), 3)
+
+    def test_globals(self):
+        self.assertEqual(inline("return global_value + 1", **self.test_kwds), global_value + 1)
+
+    def test_no_return(self):
+        self.assertEqual(inline("""
+            a = 1
+            cdef double b = 2
+            cdef c = []
+        """, **self.test_kwds), dict(a=1, b=2.0, c=[]))
+
+    def test_def_node(self):
+        foo = inline("def foo(x): return x * x", **self.test_kwds)['foo']
+        self.assertEqual(foo(7), 49)
+
+    def test_class_ref(self):
+        class Type(object):
+            pass
+        tp = inline("Type")['Type']
+        self.assertEqual(tp, Type)
+
+    def test_pure(self):
+        import cython as cy
+        b = inline("""
+        b = cy.declare(float, a)
+        c = cy.declare(cy.pointer(cy.float), &b)
+        return b
+        """, a=3, **self.test_kwds)
+        self.assertEqual(type(b), float)
+
+    def test_compiler_directives(self):
+        self.assertEqual(
+            inline('return sum(x)',
+                   x=[1, 2, 3],
+                   cython_compiler_directives={'boundscheck': False}),
+            6
+        )
+
+    def test_lang_version(self):
+        # GH-3419. Caching for inline code didn't always respect compiler directives.
+        inline_divcode = "def f(int a, int b): return a/b"
+        self.assertEqual(
+            inline(inline_divcode, language_level=2)['f'](5,2),
+            2
+        )
+        self.assertEqual(
+            inline(inline_divcode, language_level=3)['f'](5,2),
+            2.5
+        )
+
+    if has_numpy:
+
+        def test_numpy(self):
+            import numpy
+            a = numpy.ndarray((10, 20))
+            a[0,0] = 10
+            self.assertEqual(safe_type(a), 'numpy.ndarray[numpy.float64_t, ndim=2]')
+            self.assertEqual(inline("return a[0,0]", a=a, **self.test_kwds), 10.0)

kivy_venv/lib/python3.11/site-packages/Cython/Build/Tests/TestIpythonMagic.py

@@ -0,0 +1,205 @@
+# -*- coding: utf-8 -*-
+# tag: ipython
+
+"""Tests for the Cython magics extension."""
+
+from __future__ import absolute_import
+
+import os
+import sys
+from contextlib import contextmanager
+from Cython.Build import IpythonMagic
+from Cython.TestUtils import CythonTest
+
+try:
+    import IPython.testing.globalipapp
+except ImportError:
+    # Disable tests and fake helpers for initialisation below.
+    def skip_if_not_installed(_):
+        return None
+else:
+    def skip_if_not_installed(c):
+        return c
+
+try:
+    # disable IPython history thread before it gets started to avoid having to clean it up
+    from IPython.core.history import HistoryManager
+    HistoryManager.enabled = False
+except ImportError:
+    pass
+
+code = u"""\
+def f(x):
+    return 2*x
+"""
+
+cython3_code = u"""\
+def f(int x):
+    return 2 / x
+
+def call(x):
+    return f(*(x,))
+"""
+
+pgo_cython3_code = cython3_code + u"""\
+def main():
+    for _ in range(100): call(5)
+main()
+"""
+
+
+if sys.platform == 'win32':
+    # not using IPython's decorators here because they depend on "nose"
+    try:
+        from unittest import skip as skip_win32
+    except ImportError:
+        # poor dev's silent @unittest.skip()
+        def skip_win32(dummy):
+            def _skip_win32(func):
+                return None
+            return _skip_win32
+else:
+    def skip_win32(dummy):
+        def _skip_win32(func):
+            def wrapper(*args, **kwargs):
+                func(*args, **kwargs)
+            return wrapper
+        return _skip_win32
+
+
+@skip_if_not_installed
+class TestIPythonMagic(CythonTest):
+
+    @classmethod
+    def setUpClass(cls):
+        CythonTest.setUpClass()
+        cls._ip = IPython.testing.globalipapp.get_ipython()
+
+    def setUp(self):
+        CythonTest.setUp(self)
+        self._ip.extension_manager.load_extension('cython')
+
+    def test_cython_inline(self):
+        ip = self._ip
+        ip.ex('a=10; b=20')
+        result = ip.run_cell_magic('cython_inline', '', 'return a+b')
+        self.assertEqual(result, 30)
+
+    @skip_win32('Skip on Windows')
+    def test_cython_pyximport(self):
+        ip = self._ip
+        module_name = '_test_cython_pyximport'
+        ip.run_cell_magic('cython_pyximport', module_name, code)
+        ip.ex('g = f(10)')
+        self.assertEqual(ip.user_ns['g'], 20.0)
+        ip.run_cell_magic('cython_pyximport', module_name, code)
+        ip.ex('h = f(-10)')
+        self.assertEqual(ip.user_ns['h'], -20.0)
+        try:
+            os.remove(module_name + '.pyx')
+        except OSError:
+            pass
+
+    def test_cython(self):
+        ip = self._ip
+        ip.run_cell_magic('cython', '', code)
+        ip.ex('g = f(10)')
+        self.assertEqual(ip.user_ns['g'], 20.0)
+
+    def test_cython_name(self):
+        # The Cython module named 'mymodule' defines the function f.
+        ip = self._ip
+        ip.run_cell_magic('cython', '--name=mymodule', code)
+        # This module can now be imported in the interactive namespace.
+        ip.ex('import mymodule; g = mymodule.f(10)')
+        self.assertEqual(ip.user_ns['g'], 20.0)
+
+    def test_cython_language_level(self):
+        # The Cython cell defines the functions f() and call().
+        ip = self._ip
+        ip.run_cell_magic('cython', '', cython3_code)
+        ip.ex('g = f(10); h = call(10)')
+        if sys.version_info[0] < 3:
+            self.assertEqual(ip.user_ns['g'], 2 // 10)
+            self.assertEqual(ip.user_ns['h'], 2 // 10)
+        else:
+            self.assertEqual(ip.user_ns['g'], 2.0 / 10.0)
+            self.assertEqual(ip.user_ns['h'], 2.0 / 10.0)
+
+    def test_cython3(self):
+        # The Cython cell defines the functions f() and call().
+        ip = self._ip
+        ip.run_cell_magic('cython', '-3', cython3_code)
+        ip.ex('g = f(10); h = call(10)')
+        self.assertEqual(ip.user_ns['g'], 2.0 / 10.0)
+        self.assertEqual(ip.user_ns['h'], 2.0 / 10.0)
+
+    def test_cython2(self):
+        # The Cython cell defines the functions f() and call().
+        ip = self._ip
+        ip.run_cell_magic('cython', '-2', cython3_code)
+        ip.ex('g = f(10); h = call(10)')
+        self.assertEqual(ip.user_ns['g'], 2 // 10)
+        self.assertEqual(ip.user_ns['h'], 2 // 10)
+
+    @skip_win32('Skip on Windows')
+    def test_cython3_pgo(self):
+        # The Cython cell defines the functions f() and call().
+        ip = self._ip
+        ip.run_cell_magic('cython', '-3 --pgo', pgo_cython3_code)
+        ip.ex('g = f(10); h = call(10); main()')
+        self.assertEqual(ip.user_ns['g'], 2.0 / 10.0)
+        self.assertEqual(ip.user_ns['h'], 2.0 / 10.0)
+
+    @skip_win32('Skip on Windows')
+    def test_extlibs(self):
+        ip = self._ip
+        code = u"""
+from libc.math cimport sin
+x = sin(0.0)
+        """
+        ip.user_ns['x'] = 1
+        ip.run_cell_magic('cython', '-l m', code)
+        self.assertEqual(ip.user_ns['x'], 0)
+
+
+    def test_cython_verbose(self):
+        ip = self._ip
+        ip.run_cell_magic('cython', '--verbose', code)
+        ip.ex('g = f(10)')
+        self.assertEqual(ip.user_ns['g'], 20.0)
+
+    def test_cython_verbose_thresholds(self):
+        @contextmanager
+        def mock_distutils():
+            class MockLog:
+                DEBUG = 1
+                INFO = 2
+                thresholds = [INFO]
+
+                def set_threshold(self, val):
+                    self.thresholds.append(val)
+                    return self.thresholds[-2]
+
+
+            new_log = MockLog()
+            old_log = IpythonMagic.distutils.log
+            try:
+                IpythonMagic.distutils.log = new_log
+                yield new_log
+            finally:
+                IpythonMagic.distutils.log = old_log
+
+        ip = self._ip
+        with mock_distutils() as verbose_log:
+            ip.run_cell_magic('cython', '--verbose', code)
+            ip.ex('g = f(10)')
+        self.assertEqual(ip.user_ns['g'], 20.0)
+        self.assertEqual([verbose_log.INFO, verbose_log.DEBUG, verbose_log.INFO],
+                          verbose_log.thresholds)
+
+        with mock_distutils() as normal_log:
+            ip.run_cell_magic('cython', '', code)
+            ip.ex('g = f(10)')
+        self.assertEqual(ip.user_ns['g'], 20.0)
+        self.assertEqual([normal_log.INFO], normal_log.thresholds)

kivy_venv/lib/python3.11/site-packages/Cython/Build/Tests/TestStripLiterals.py

@@ -0,0 +1,57 @@
+from Cython.Build.Dependencies import strip_string_literals
+
+from Cython.TestUtils import CythonTest
+
+class TestStripLiterals(CythonTest):
+
+    def t(self, before, expected):
+        actual, literals = strip_string_literals(before, prefix="_L")
+        self.assertEqual(expected, actual)
+        for key, value in literals.items():
+            actual = actual.replace(key, value)
+        self.assertEqual(before, actual)
+
+    def test_empty(self):
+        self.t("", "")
+
+    def test_single_quote(self):
+        self.t("'x'", "'_L1_'")
+
+    def test_double_quote(self):
+        self.t('"x"', '"_L1_"')
+
+    def test_nested_quotes(self):
+        self.t(""" '"' "'" """, """ '_L1_' "_L2_" """)
+
+    def test_triple_quote(self):
+        self.t(" '''a\n''' ", " '''_L1_''' ")
+
+    def test_backslash(self):
+        self.t(r"'a\'b'", "'_L1_'")
+        self.t(r"'a\\'", "'_L1_'")
+        self.t(r"'a\\\'b'", "'_L1_'")
+
+    def test_unicode(self):
+        self.t("u'abc'", "u'_L1_'")
+
+    def test_raw(self):
+        self.t(r"r'abc\\'", "r'_L1_'")
+
+    def test_raw_unicode(self):
+        self.t(r"ru'abc\\'", "ru'_L1_'")
+
+    def test_comment(self):
+        self.t("abc # foo", "abc #_L1_")
+
+    def test_comment_and_quote(self):
+        self.t("abc # 'x'", "abc #_L1_")
+        self.t("'abc#'", "'_L1_'")
+
+    def test_include(self):
+        self.t("include 'a.pxi' # something here",
+               "include '_L1_' #_L2_")
+
+    def test_extern(self):
+        self.t("cdef extern from 'a.h': # comment",
+               "cdef extern from '_L1_': #_L2_")
+

kivy_venv/lib/python3.11/site-packages/Cython/Build/Tests/__init__.py

@@ -0,0 +1 @@
+# empty file

kivy_venv/lib/python3.11/site-packages/Cython/Build/__init__.py

@@ -0,0 +1,2 @@
+from .Dependencies import cythonize
+from .Distutils import build_ext

kivy_venv/lib/python3.11/site-packages/Cython/CodeWriter.py

@@ -0,0 +1,816 @@
+"""
+Serializes a Cython code tree to Cython code. This is primarily useful for
+debugging and testing purposes.
+
+The output is in a strict format, no whitespace or comments from the input
+is preserved (and it could not be as it is not present in the code tree).
+"""
+
+from __future__ import absolute_import, print_function
+
+from .Compiler.Visitor import TreeVisitor
+from .Compiler.ExprNodes import *
+
+
+class LinesResult(object):
+    def __init__(self):
+        self.lines = []
+        self.s = u""
+
+    def put(self, s):
+        self.s += s
+
+    def newline(self):
+        self.lines.append(self.s)
+        self.s = u""
+
+    def putline(self, s):
+        self.put(s)
+        self.newline()
+
+class DeclarationWriter(TreeVisitor):
+
+    indent_string = u"    "
+
+    def __init__(self, result=None):
+        super(DeclarationWriter, self).__init__()
+        if result is None:
+            result = LinesResult()
+        self.result = result
+        self.numindents = 0
+        self.tempnames = {}
+        self.tempblockindex = 0
+
+    def write(self, tree):
+        self.visit(tree)
+        return self.result
+
+    def indent(self):
+        self.numindents += 1
+
+    def dedent(self):
+        self.numindents -= 1
+
+    def startline(self, s=u""):
+        self.result.put(self.indent_string * self.numindents + s)
+
+    def put(self, s):
+        self.result.put(s)
+
+    def putline(self, s):
+        self.result.putline(self.indent_string * self.numindents + s)
+
+    def endline(self, s=u""):
+        self.result.putline(s)
+
+    def line(self, s):
+        self.startline(s)
+        self.endline()
+
+    def comma_separated_list(self, items, output_rhs=False):
+        if len(items) > 0:
+            for item in items[:-1]:
+                self.visit(item)
+                if output_rhs and item.default is not None:
+                    self.put(u" = ")
+                    self.visit(item.default)
+                self.put(u", ")
+            self.visit(items[-1])
+
+    def visit_Node(self, node):
+        raise AssertionError("Node not handled by serializer: %r" % node)
+
+    def visit_ModuleNode(self, node):
+        self.visitchildren(node)
+
+    def visit_StatListNode(self, node):
+        self.visitchildren(node)
+
+    def visit_CDefExternNode(self, node):
+        if node.include_file is None:
+            file = u'*'
+        else:
+            file = u'"%s"' % node.include_file
+        self.putline(u"cdef extern from %s:" % file)
+        self.indent()
+        self.visit(node.body)
+        self.dedent()
+
+    def visit_CPtrDeclaratorNode(self, node):
+        self.put('*')
+        self.visit(node.base)
+
+    def visit_CReferenceDeclaratorNode(self, node):
+        self.put('&')
+        self.visit(node.base)
+
+    def visit_CArrayDeclaratorNode(self, node):
+        self.visit(node.base)
+        self.put(u'[')
+        if node.dimension is not None:
+            self.visit(node.dimension)
+        self.put(u']')
+
+    def visit_CArrayDeclaratorNode(self, node):
+        self.visit(node.base)
+        self.put(u'[')
+        if node.dimension is not None:
+            self.visit(node.dimension)
+        self.put(u']')
+
+    def visit_CFuncDeclaratorNode(self, node):
+        # TODO: except, gil, etc.
+        self.visit(node.base)
+        self.put(u'(')
+        self.comma_separated_list(node.args)
+        self.endline(u')')
+
+    def visit_CNameDeclaratorNode(self, node):
+        self.put(node.name)
+
+    def visit_CSimpleBaseTypeNode(self, node):
+        # See Parsing.p_sign_and_longness
+        if node.is_basic_c_type:
+            self.put(("unsigned ", "", "signed ")[node.signed])
+            if node.longness < 0:
+                self.put("short " * -node.longness)
+            elif node.longness > 0:
+                self.put("long " * node.longness)
+        self.put(node.name)
+
+    def visit_CComplexBaseTypeNode(self, node):
+        self.put(u'(')
+        self.visit(node.base_type)
+        self.visit(node.declarator)
+        self.put(u')')
+
+    def visit_CNestedBaseTypeNode(self, node):
+        self.visit(node.base_type)
+        self.put(u'.')
+        self.put(node.name)
+
+    def visit_TemplatedTypeNode(self, node):
+        self.visit(node.base_type_node)
+        self.put(u'[')
+        self.comma_separated_list(node.positional_args + node.keyword_args.key_value_pairs)
+        self.put(u']')
+
+    def visit_CVarDefNode(self, node):
+        self.startline(u"cdef ")
+        self.visit(node.base_type)
+        self.put(u" ")
+        self.comma_separated_list(node.declarators, output_rhs=True)
+        self.endline()
+
+    def visit_container_node(self, node, decl, extras, attributes):
+        # TODO: visibility
+        self.startline(decl)
+        if node.name:
+            self.put(u' ')
+            self.put(node.name)
+            if node.cname is not None:
+                self.put(u' "%s"' % node.cname)
+        if extras:
+            self.put(extras)
+        self.endline(':')
+        self.indent()
+        if not attributes:
+            self.putline('pass')
+        else:
+            for attribute in attributes:
+                self.visit(attribute)
+        self.dedent()
+
+    def visit_CStructOrUnionDefNode(self, node):
+        if node.typedef_flag:
+            decl = u'ctypedef '
+        else:
+            decl = u'cdef '
+        if node.visibility == 'public':
+            decl += u'public '
+        if node.packed:
+            decl += u'packed '
+        decl += node.kind
+        self.visit_container_node(node, decl, None, node.attributes)
+
+    def visit_CppClassNode(self, node):
+        extras = ""
+        if node.templates:
+            extras = u"[%s]" % ", ".join(node.templates)
+        if node.base_classes:
+            extras += "(%s)" % ", ".join(node.base_classes)
+        self.visit_container_node(node, u"cdef cppclass", extras, node.attributes)
+
+    def visit_CEnumDefNode(self, node):
+        self.visit_container_node(node, u"cdef enum", None, node.items)
+
+    def visit_CEnumDefItemNode(self, node):
+        self.startline(node.name)
+        if node.cname:
+            self.put(u' "%s"' % node.cname)
+        if node.value:
+            self.put(u" = ")
+            self.visit(node.value)
+        self.endline()
+
+    def visit_CClassDefNode(self, node):
+        assert not node.module_name
+        if node.decorators:
+            for decorator in node.decorators:
+                self.visit(decorator)
+        self.startline(u"cdef class ")
+        self.put(node.class_name)
+        if node.base_class_name:
+            self.put(u"(")
+            if node.base_class_module:
+                self.put(node.base_class_module)
+                self.put(u".")
+            self.put(node.base_class_name)
+            self.put(u")")
+        self.endline(u":")
+        self.indent()
+        self.visit(node.body)
+        self.dedent()
+
+    def visit_CTypeDefNode(self, node):
+        self.startline(u"ctypedef ")
+        self.visit(node.base_type)
+        self.put(u" ")
+        self.visit(node.declarator)
+        self.endline()
+
+    def visit_FuncDefNode(self, node):
+        self.startline(u"def %s(" % node.name)
+        self.comma_separated_list(node.args)
+        self.endline(u"):")
+        self.indent()
+        self.visit(node.body)
+        self.dedent()
+
+    def visit_CArgDeclNode(self, node):
+        if node.base_type.name is not None:
+            self.visit(node.base_type)
+            self.put(u" ")
+        self.visit(node.declarator)
+        if node.default is not None:
+            self.put(u" = ")
+            self.visit(node.default)
+
+    def visit_CImportStatNode(self, node):
+        self.startline(u"cimport ")
+        self.put(node.module_name)
+        if node.as_name:
+            self.put(u" as ")
+            self.put(node.as_name)
+        self.endline()
+
+    def visit_FromCImportStatNode(self, node):
+        self.startline(u"from ")
+        self.put(node.module_name)
+        self.put(u" cimport ")
+        first = True
+        for pos, name, as_name, kind in node.imported_names:
+            assert kind is None
+            if first:
+                first = False
+            else:
+                self.put(u", ")
+            self.put(name)
+            if as_name:
+                self.put(u" as ")
+                self.put(as_name)
+        self.endline()
+
+    def visit_NameNode(self, node):
+        self.put(node.name)
+
+    def visit_IntNode(self, node):
+        self.put(node.value)
+
+    def visit_NoneNode(self, node):
+        self.put(u"None")
+
+    def visit_NotNode(self, node):
+        self.put(u"(not ")
+        self.visit(node.operand)
+        self.put(u")")
+
+    def visit_DecoratorNode(self, node):
+        self.startline("@")
+        self.visit(node.decorator)
+        self.endline()
+
+    def visit_BinopNode(self, node):
+        self.visit(node.operand1)
+        self.put(u" %s " % node.operator)
+        self.visit(node.operand2)
+
+    def visit_AttributeNode(self, node):
+        self.visit(node.obj)
+        self.put(u".%s" % node.attribute)
+
+    def visit_BoolNode(self, node):
+        self.put(str(node.value))
+
+    # FIXME: represent string nodes correctly
+    def visit_StringNode(self, node):
+        value = node.value
+        if value.encoding is not None:
+            value = value.encode(value.encoding)
+        self.put(repr(value))
+
+    def visit_PassStatNode(self, node):
+        self.startline(u"pass")
+        self.endline()
+
+class CodeWriter(DeclarationWriter):
+
+    def visit_SingleAssignmentNode(self, node):
+        self.startline()
+        self.visit(node.lhs)
+        self.put(u" = ")
+        self.visit(node.rhs)
+        self.endline()
+
+    def visit_CascadedAssignmentNode(self, node):
+        self.startline()
+        for lhs in node.lhs_list:
+            self.visit(lhs)
+            self.put(u" = ")
+        self.visit(node.rhs)
+        self.endline()
+
+    def visit_PrintStatNode(self, node):
+        self.startline(u"print ")
+        self.comma_separated_list(node.arg_tuple.args)
+        if not node.append_newline:
+            self.put(u",")
+        self.endline()
+
+    def visit_ForInStatNode(self, node):
+        self.startline(u"for ")
+        self.visit(node.target)
+        self.put(u" in ")
+        self.visit(node.iterator.sequence)
+        self.endline(u":")
+        self.indent()
+        self.visit(node.body)
+        self.dedent()
+        if node.else_clause is not None:
+            self.line(u"else:")
+            self.indent()
+            self.visit(node.else_clause)
+            self.dedent()
+
+    def visit_IfStatNode(self, node):
+        # The IfClauseNode is handled directly without a separate match
+        # for clariy.
+        self.startline(u"if ")
+        self.visit(node.if_clauses[0].condition)
+        self.endline(":")
+        self.indent()
+        self.visit(node.if_clauses[0].body)
+        self.dedent()
+        for clause in node.if_clauses[1:]:
+            self.startline("elif ")
+            self.visit(clause.condition)
+            self.endline(":")
+            self.indent()
+            self.visit(clause.body)
+            self.dedent()
+        if node.else_clause is not None:
+            self.line("else:")
+            self.indent()
+            self.visit(node.else_clause)
+            self.dedent()
+
+    def visit_SequenceNode(self, node):
+        self.comma_separated_list(node.args) # Might need to discover whether we need () around tuples...hmm...
+
+    def visit_SimpleCallNode(self, node):
+        self.visit(node.function)
+        self.put(u"(")
+        self.comma_separated_list(node.args)
+        self.put(")")
+
+    def visit_GeneralCallNode(self, node):
+        self.visit(node.function)
+        self.put(u"(")
+        posarg = node.positional_args
+        if isinstance(posarg, AsTupleNode):
+            self.visit(posarg.arg)
+        else:
+            self.comma_separated_list(posarg.args)  # TupleNode.args
+        if node.keyword_args:
+            if isinstance(node.keyword_args, DictNode):
+                for i, (name, value) in enumerate(node.keyword_args.key_value_pairs):
+                    if i > 0:
+                        self.put(', ')
+                    self.visit(name)
+                    self.put('=')
+                    self.visit(value)
+            else:
+                raise Exception("Not implemented yet")
+        self.put(u")")
+
+    def visit_ExprStatNode(self, node):
+        self.startline()
+        self.visit(node.expr)
+        self.endline()
+
+    def visit_InPlaceAssignmentNode(self, node):
+        self.startline()
+        self.visit(node.lhs)
+        self.put(u" %s= " % node.operator)
+        self.visit(node.rhs)
+        self.endline()
+
+    def visit_WithStatNode(self, node):
+        self.startline()
+        self.put(u"with ")
+        self.visit(node.manager)
+        if node.target is not None:
+            self.put(u" as ")
+            self.visit(node.target)
+        self.endline(u":")
+        self.indent()
+        self.visit(node.body)
+        self.dedent()
+
+    def visit_TryFinallyStatNode(self, node):
+        self.line(u"try:")
+        self.indent()
+        self.visit(node.body)
+        self.dedent()
+        self.line(u"finally:")
+        self.indent()
+        self.visit(node.finally_clause)
+        self.dedent()
+
+    def visit_TryExceptStatNode(self, node):
+        self.line(u"try:")
+        self.indent()
+        self.visit(node.body)
+        self.dedent()
+        for x in node.except_clauses:
+            self.visit(x)
+        if node.else_clause is not None:
+            self.visit(node.else_clause)
+
+    def visit_ExceptClauseNode(self, node):
+        self.startline(u"except")
+        if node.pattern is not None:
+            self.put(u" ")
+            self.visit(node.pattern)
+        if node.target is not None:
+            self.put(u", ")
+            self.visit(node.target)
+        self.endline(":")
+        self.indent()
+        self.visit(node.body)
+        self.dedent()
+
+    def visit_ReturnStatNode(self, node):
+        self.startline("return ")
+        self.visit(node.value)
+        self.endline()
+
+    def visit_ReraiseStatNode(self, node):
+        self.line("raise")
+
+    def visit_ImportNode(self, node):
+        self.put(u"(import %s)" % node.module_name.value)
+
+    def visit_TempsBlockNode(self, node):
+        """
+        Temporaries are output like $1_1', where the first number is
+        an index of the TempsBlockNode and the second number is an index
+        of the temporary which that block allocates.
+        """
+        idx = 0
+        for handle in node.temps:
+            self.tempnames[handle] = "$%d_%d" % (self.tempblockindex, idx)
+            idx += 1
+        self.tempblockindex += 1
+        self.visit(node.body)
+
+    def visit_TempRefNode(self, node):
+        self.put(self.tempnames[node.handle])
+
+
+class PxdWriter(DeclarationWriter):
+    def __call__(self, node):
+        print(u'\n'.join(self.write(node).lines))
+        return node
+
+    def visit_CFuncDefNode(self, node):
+        if 'inline' in node.modifiers:
+            return
+        if node.overridable:
+            self.startline(u'cpdef ')
+        else:
+            self.startline(u'cdef ')
+        if node.visibility != 'private':
+            self.put(node.visibility)
+            self.put(u' ')
+        if node.api:
+            self.put(u'api ')
+        self.visit(node.declarator)
+
+    def visit_StatNode(self, node):
+        pass
+
+
+class ExpressionWriter(TreeVisitor):
+
+    def __init__(self, result=None):
+        super(ExpressionWriter, self).__init__()
+        if result is None:
+            result = u""
+        self.result = result
+        self.precedence = [0]
+
+    def write(self, tree):
+        self.visit(tree)
+        return self.result
+
+    def put(self, s):
+        self.result += s
+
+    def remove(self, s):
+        if self.result.endswith(s):
+            self.result = self.result[:-len(s)]
+
+    def comma_separated_list(self, items):
+        if len(items) > 0:
+            for item in items[:-1]:
+                self.visit(item)
+                self.put(u", ")
+            self.visit(items[-1])
+
+    def visit_Node(self, node):
+        raise AssertionError("Node not handled by serializer: %r" % node)
+
+    def visit_NameNode(self, node):
+        self.put(node.name)
+
+    def visit_NoneNode(self, node):
+        self.put(u"None")
+
+    def visit_EllipsisNode(self, node):
+        self.put(u"...")
+
+    def visit_BoolNode(self, node):
+        self.put(str(node.value))
+
+    def visit_ConstNode(self, node):
+        self.put(str(node.value))
+
+    def visit_ImagNode(self, node):
+        self.put(node.value)
+        self.put(u"j")
+
+    def emit_string(self, node, prefix=u""):
+        repr_val = repr(node.value)
+        if repr_val[0] in 'ub':
+            repr_val = repr_val[1:]
+        self.put(u"%s%s" % (prefix, repr_val))
+
+    def visit_BytesNode(self, node):
+        self.emit_string(node, u"b")
+
+    def visit_StringNode(self, node):
+        self.emit_string(node)
+
+    def visit_UnicodeNode(self, node):
+        self.emit_string(node, u"u")
+
+    def emit_sequence(self, node, parens=(u"", u"")):
+        open_paren, close_paren = parens
+        items = node.subexpr_nodes()
+        self.put(open_paren)
+        self.comma_separated_list(items)
+        self.put(close_paren)
+
+    def visit_ListNode(self, node):
+        self.emit_sequence(node, u"[]")
+
+    def visit_TupleNode(self, node):
+        self.emit_sequence(node, u"()")
+
+    def visit_SetNode(self, node):
+        if len(node.subexpr_nodes()) > 0:
+            self.emit_sequence(node, u"{}")
+        else:
+            self.put(u"set()")
+
+    def visit_DictNode(self, node):
+        self.emit_sequence(node, u"{}")
+
+    def visit_DictItemNode(self, node):
+        self.visit(node.key)
+        self.put(u": ")
+        self.visit(node.value)
+
+    unop_precedence = {
+        'not': 3, '!': 3,
+        '+': 11, '-': 11, '~': 11,
+    }
+    binop_precedence = {
+        'or': 1,
+        'and': 2,
+        # unary: 'not': 3, '!': 3,
+        'in': 4, 'not_in': 4, 'is': 4, 'is_not': 4, '<': 4, '<=': 4, '>': 4, '>=': 4, '!=': 4, '==': 4,
+        '|': 5,
+        '^': 6,
+        '&': 7,
+        '<<': 8, '>>': 8,
+        '+': 9, '-': 9,
+        '*': 10, '@': 10, '/': 10, '//': 10, '%': 10,
+        # unary: '+': 11, '-': 11, '~': 11
+        '**': 12,
+    }
+
+    def operator_enter(self, new_prec):
+        old_prec = self.precedence[-1]
+        if old_prec > new_prec:
+            self.put(u"(")
+        self.precedence.append(new_prec)
+
+    def operator_exit(self):
+        old_prec, new_prec = self.precedence[-2:]
+        if old_prec > new_prec:
+            self.put(u")")
+        self.precedence.pop()
+
+    def visit_NotNode(self, node):
+        op = 'not'
+        prec = self.unop_precedence[op]
+        self.operator_enter(prec)
+        self.put(u"not ")
+        self.visit(node.operand)
+        self.operator_exit()
+
+    def visit_UnopNode(self, node):
+        op = node.operator
+        prec = self.unop_precedence[op]
+        self.operator_enter(prec)
+        self.put(u"%s" % node.operator)
+        self.visit(node.operand)
+        self.operator_exit()
+
+    def visit_BinopNode(self, node):
+        op = node.operator
+        prec = self.binop_precedence.get(op, 0)
+        self.operator_enter(prec)
+        self.visit(node.operand1)
+        self.put(u" %s " % op.replace('_', ' '))
+        self.visit(node.operand2)
+        self.operator_exit()
+
+    def visit_BoolBinopNode(self, node):
+        self.visit_BinopNode(node)
+
+    def visit_PrimaryCmpNode(self, node):
+        self.visit_BinopNode(node)
+
+    def visit_IndexNode(self, node):
+        self.visit(node.base)
+        self.put(u"[")
+        if isinstance(node.index, TupleNode):
+            self.emit_sequence(node.index)
+        else:
+            self.visit(node.index)
+        self.put(u"]")
+
+    def visit_SliceIndexNode(self, node):
+        self.visit(node.base)
+        self.put(u"[")
+        if node.start:
+            self.visit(node.start)
+        self.put(u":")
+        if node.stop:
+            self.visit(node.stop)
+        if node.slice:
+            self.put(u":")
+            self.visit(node.slice)
+        self.put(u"]")
+
+    def visit_SliceNode(self, node):
+        if not node.start.is_none:
+            self.visit(node.start)
+        self.put(u":")
+        if not node.stop.is_none:
+            self.visit(node.stop)
+        if not node.step.is_none:
+            self.put(u":")
+            self.visit(node.step)
+
+    def visit_CondExprNode(self, node):
+        self.visit(node.true_val)
+        self.put(u" if ")
+        self.visit(node.test)
+        self.put(u" else ")
+        self.visit(node.false_val)
+
+    def visit_AttributeNode(self, node):
+        self.visit(node.obj)
+        self.put(u".%s" % node.attribute)
+
+    def visit_SimpleCallNode(self, node):
+        self.visit(node.function)
+        self.put(u"(")
+        self.comma_separated_list(node.args)
+        self.put(")")
+
+    def emit_pos_args(self, node):
+        if node is None:
+            return
+        if isinstance(node, AddNode):
+            self.emit_pos_args(node.operand1)
+            self.emit_pos_args(node.operand2)
+        elif isinstance(node, TupleNode):
+            for expr in node.subexpr_nodes():
+                self.visit(expr)
+                self.put(u", ")
+        elif isinstance(node, AsTupleNode):
+            self.put("*")
+            self.visit(node.arg)
+            self.put(u", ")
+        else:
+            self.visit(node)
+            self.put(u", ")
+
+    def emit_kwd_args(self, node):
+        if node is None:
+            return
+        if isinstance(node, MergedDictNode):
+            for expr in node.subexpr_nodes():
+                self.emit_kwd_args(expr)
+        elif isinstance(node, DictNode):
+            for expr in node.subexpr_nodes():
+                self.put(u"%s=" % expr.key.value)
+                self.visit(expr.value)
+                self.put(u", ")
+        else:
+            self.put(u"**")
+            self.visit(node)
+            self.put(u", ")
+
+    def visit_GeneralCallNode(self, node):
+        self.visit(node.function)
+        self.put(u"(")
+        self.emit_pos_args(node.positional_args)
+        self.emit_kwd_args(node.keyword_args)
+        self.remove(u", ")
+        self.put(")")
+
+    def emit_comprehension(self, body, target,
+                           sequence, condition,
+                           parens=(u"", u"")):
+        open_paren, close_paren = parens
+        self.put(open_paren)
+        self.visit(body)
+        self.put(u" for ")
+        self.visit(target)
+        self.put(u" in ")
+        self.visit(sequence)
+        if condition:
+            self.put(u" if ")
+            self.visit(condition)
+        self.put(close_paren)
+
+    def visit_ComprehensionAppendNode(self, node):
+        self.visit(node.expr)
+
+    def visit_DictComprehensionAppendNode(self, node):
+        self.visit(node.key_expr)
+        self.put(u": ")
+        self.visit(node.value_expr)
+
+    def visit_ComprehensionNode(self, node):
+        tpmap = {'list': u"[]", 'dict': u"{}", 'set': u"{}"}
+        parens = tpmap[node.type.py_type_name()]
+        body = node.loop.body
+        target = node.loop.target
+        sequence = node.loop.iterator.sequence
+        condition = None
+        if hasattr(body, 'if_clauses'):
+            # type(body) is Nodes.IfStatNode
+            condition = body.if_clauses[0].condition
+            body = body.if_clauses[0].body
+        self.emit_comprehension(body, target, sequence, condition, parens)
+
+    def visit_GeneratorExpressionNode(self, node):
+        body = node.loop.body
+        target = node.loop.target
+        sequence = node.loop.iterator.sequence
+        condition = None
+        if hasattr(body, 'if_clauses'):
+            # type(body) is Nodes.IfStatNode
+            condition = body.if_clauses[0].condition
+            body = body.if_clauses[0].body.expr.arg
+        elif hasattr(body, 'expr'):
+            # type(body) is Nodes.ExprStatNode
+            body = body.expr.arg
+        self.emit_comprehension(body, target, sequence, condition, u"()")

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/AnalysedTreeTransforms.py

@@ -0,0 +1,99 @@
+from __future__ import absolute_import
+
+from .Visitor import ScopeTrackingTransform
+from .Nodes import StatListNode, SingleAssignmentNode, CFuncDefNode, DefNode
+from .ExprNodes import DictNode, DictItemNode, NameNode, UnicodeNode
+from .PyrexTypes import py_object_type
+from .StringEncoding import EncodedString
+from . import Symtab
+
+class AutoTestDictTransform(ScopeTrackingTransform):
+    # Handles autotestdict directive
+
+    blacklist = ['__cinit__', '__dealloc__', '__richcmp__',
+                 '__nonzero__', '__bool__',
+                 '__len__', '__contains__']
+
+    def visit_ModuleNode(self, node):
+        if node.is_pxd:
+            return node
+        self.scope_type = 'module'
+        self.scope_node = node
+
+        if not self.current_directives['autotestdict']:
+            return node
+        self.all_docstrings = self.current_directives['autotestdict.all']
+        self.cdef_docstrings = self.all_docstrings or self.current_directives['autotestdict.cdef']
+
+        assert isinstance(node.body, StatListNode)
+
+        # First see if __test__ is already created
+        if u'__test__' in node.scope.entries:
+            # Do nothing
+            return node
+
+        pos = node.pos
+
+        self.tests = []
+        self.testspos = node.pos
+
+        test_dict_entry = node.scope.declare_var(EncodedString(u'__test__'),
+                                                 py_object_type,
+                                                 pos,
+                                                 visibility='public')
+        create_test_dict_assignment = SingleAssignmentNode(pos,
+            lhs=NameNode(pos, name=EncodedString(u'__test__'),
+                         entry=test_dict_entry),
+            rhs=DictNode(pos, key_value_pairs=self.tests))
+        self.visitchildren(node)
+        node.body.stats.append(create_test_dict_assignment)
+        return node
+
+    def add_test(self, testpos, path, doctest):
+        pos = self.testspos
+        keystr = u'%s (line %d)' % (path, testpos[1])
+        key = UnicodeNode(pos, value=EncodedString(keystr))
+        value = UnicodeNode(pos, value=doctest)
+        self.tests.append(DictItemNode(pos, key=key, value=value))
+
+    def visit_ExprNode(self, node):
+        # expressions cannot contain functions and lambda expressions
+        # do not have a docstring
+        return node
+
+    def visit_FuncDefNode(self, node):
+        if not node.doc or (isinstance(node, DefNode) and node.fused_py_func):
+            return node
+        if not self.cdef_docstrings:
+            if isinstance(node, CFuncDefNode) and not node.py_func:
+                return node
+        if not self.all_docstrings and '>>>' not in node.doc:
+            return node
+
+        pos = self.testspos
+        if self.scope_type == 'module':
+            path = node.entry.name
+        elif self.scope_type in ('pyclass', 'cclass'):
+            if isinstance(node, CFuncDefNode):
+                if node.py_func is not None:
+                    name = node.py_func.name
+                else:
+                    name = node.entry.name
+            else:
+                name = node.name
+            if self.scope_type == 'cclass' and name in self.blacklist:
+                return node
+            if self.scope_type == 'pyclass':
+                class_name = self.scope_node.name
+            else:
+                class_name = self.scope_node.class_name
+            if isinstance(node.entry.scope, Symtab.PropertyScope):
+                property_method_name = node.entry.scope.name
+                path = "%s.%s.%s" % (class_name, node.entry.scope.name,
+                                     node.entry.name)
+            else:
+                path = "%s.%s" % (class_name, node.entry.name)
+        else:
+            assert False
+        self.add_test(node.pos, path, node.doc)
+        return node

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Annotate.py

@@ -0,0 +1,317 @@
+# Note: Work in progress
+
+from __future__ import absolute_import
+
+import os
+import os.path
+import re
+import codecs
+import textwrap
+from datetime import datetime
+from functools import partial
+from collections import defaultdict
+from xml.sax.saxutils import escape as html_escape
+try:
+    from StringIO import StringIO
+except ImportError:
+    from io import StringIO  # does not support writing 'str' in Py2
+
+from . import Version
+from .Code import CCodeWriter
+from .. import Utils
+
+
+class AnnotationCCodeWriter(CCodeWriter):
+
+    def __init__(self, create_from=None, buffer=None, copy_formatting=True):
+        CCodeWriter.__init__(self, create_from, buffer, copy_formatting=copy_formatting)
+        if create_from is None:
+            self.annotation_buffer = StringIO()
+            self.last_annotated_pos = None
+            # annotations[filename][line] -> [(column, AnnotationItem)*]
+            self.annotations = defaultdict(partial(defaultdict, list))
+            # code[filename][line] -> str
+            self.code = defaultdict(partial(defaultdict, str))
+            # scopes[filename][line] -> set(scopes)
+            self.scopes = defaultdict(partial(defaultdict, set))
+        else:
+            # When creating an insertion point, keep references to the same database
+            self.annotation_buffer = create_from.annotation_buffer
+            self.annotations = create_from.annotations
+            self.code = create_from.code
+            self.scopes = create_from.scopes
+            self.last_annotated_pos = create_from.last_annotated_pos
+
+    def create_new(self, create_from, buffer, copy_formatting):
+        return AnnotationCCodeWriter(create_from, buffer, copy_formatting)
+
+    def write(self, s):
+        CCodeWriter.write(self, s)
+        self.annotation_buffer.write(s)
+
+    def mark_pos(self, pos, trace=True):
+        if pos is not None:
+            CCodeWriter.mark_pos(self, pos, trace)
+            if self.funcstate and self.funcstate.scope:
+                # lambdas and genexprs can result in multiple scopes per line => keep them in a set
+                self.scopes[pos[0].filename][pos[1]].add(self.funcstate.scope)
+        if self.last_annotated_pos:
+            source_desc, line, _ = self.last_annotated_pos
+            pos_code = self.code[source_desc.filename]
+            pos_code[line] += self.annotation_buffer.getvalue()
+        self.annotation_buffer = StringIO()
+        self.last_annotated_pos = pos
+
+    def annotate(self, pos, item):
+        self.annotations[pos[0].filename][pos[1]].append((pos[2], item))
+
+    def _css(self):
+        """css template will later allow to choose a colormap"""
+        css = [self._css_template]
+        for i in range(255):
+            color = u"FFFF%02x" % int(255/(1+i/10.0))
+            css.append('.cython.score-%d {background-color: #%s;}' % (i, color))
+        try:
+            from pygments.formatters import HtmlFormatter
+        except ImportError:
+            pass
+        else:
+            css.append(HtmlFormatter().get_style_defs('.cython'))
+        return '\n'.join(css)
+
+    _css_template = textwrap.dedent("""
+        body.cython { font-family: courier; font-size: 12; }
+
+        .cython.tag  {  }
+        .cython.line { margin: 0em }
+        .cython.code { font-size: 9; color: #444444; display: none; margin: 0px 0px 0px 8px; border-left: 8px none; }
+
+        .cython.line .run { background-color: #B0FFB0; }
+        .cython.line .mis { background-color: #FFB0B0; }
+        .cython.code.run  { border-left: 8px solid #B0FFB0; }
+        .cython.code.mis  { border-left: 8px solid #FFB0B0; }
+
+        .cython.code .py_c_api  { color: red; }
+        .cython.code .py_macro_api  { color: #FF7000; }
+        .cython.code .pyx_c_api  { color: #FF3000; }
+        .cython.code .pyx_macro_api  { color: #FF7000; }
+        .cython.code .refnanny  { color: #FFA000; }
+        .cython.code .trace  { color: #FFA000; }
+        .cython.code .error_goto  { color: #FFA000; }
+
+        .cython.code .coerce  { color: #008000; border: 1px dotted #008000 }
+        .cython.code .py_attr { color: #FF0000; font-weight: bold; }
+        .cython.code .c_attr  { color: #0000FF; }
+        .cython.code .py_call { color: #FF0000; font-weight: bold; }
+        .cython.code .c_call  { color: #0000FF; }
+    """)
+
+    # on-click toggle function to show/hide C source code
+    _onclick_attr = ' onclick="{0}"'.format((
+        "(function(s){"
+        "    s.display =  s.display === 'block' ? 'none' : 'block'"
+        "})(this.nextElementSibling.style)"
+        ).replace(' ', '')  # poor dev's JS minification
+    )
+
+    def save_annotation(self, source_filename, target_filename, coverage_xml=None):
+        with Utils.open_source_file(source_filename) as f:
+            code = f.read()
+        generated_code = self.code.get(source_filename, {})
+        c_file = Utils.decode_filename(os.path.basename(target_filename))
+        html_filename = os.path.splitext(target_filename)[0] + ".html"
+
+        with codecs.open(html_filename, "w", encoding="UTF-8") as out_buffer:
+            out_buffer.write(self._save_annotation(code, generated_code, c_file, source_filename, coverage_xml))
+
+    def _save_annotation_header(self, c_file, source_filename, coverage_timestamp=None):
+        coverage_info = ''
+        if coverage_timestamp:
+            coverage_info = u' with coverage data from {timestamp}'.format(
+                timestamp=datetime.fromtimestamp(int(coverage_timestamp) // 1000))
+
+        outlist = [
+            textwrap.dedent(u'''\
+            <!DOCTYPE html>
+            <!-- Generated by Cython {watermark} -->
+            <html>
+            <head>
+                <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+                <title>Cython: {filename}</title>
+                <style type="text/css">
+                {css}
+                </style>
+            </head>
+            <body class="cython">
+            <p><span style="border-bottom: solid 1px grey;">Generated by Cython {watermark}</span>{more_info}</p>
+            <p>
+                <span style="background-color: #FFFF00">Yellow lines</span> hint at Python interaction.<br />
+                Click on a line that starts with a "<code>+</code>" to see the C code that Cython generated for it.
+            </p>
+            ''').format(css=self._css(), watermark=Version.watermark,
+                        filename=os.path.basename(source_filename) if source_filename else '',
+                        more_info=coverage_info)
+        ]
+        if c_file:
+            outlist.append(u'<p>Raw output: <a href="%s">%s</a></p>\n' % (c_file, c_file))
+        return outlist
+
+    def _save_annotation_footer(self):
+        return (u'</body></html>\n',)
+
+    def _save_annotation(self, code, generated_code, c_file=None, source_filename=None, coverage_xml=None):
+        """
+        lines : original cython source code split by lines
+        generated_code : generated c code keyed by line number in original file
+        target filename : name of the file in which to store the generated html
+        c_file : filename in which the c_code has been written
+        """
+        if coverage_xml is not None and source_filename:
+            coverage_timestamp = coverage_xml.get('timestamp', '').strip()
+            covered_lines = self._get_line_coverage(coverage_xml, source_filename)
+        else:
+            coverage_timestamp = covered_lines = None
+        annotation_items = dict(self.annotations[source_filename])
+        scopes = dict(self.scopes[source_filename])
+
+        outlist = []
+        outlist.extend(self._save_annotation_header(c_file, source_filename, coverage_timestamp))
+        outlist.extend(self._save_annotation_body(code, generated_code, annotation_items, scopes, covered_lines))
+        outlist.extend(self._save_annotation_footer())
+        return ''.join(outlist)
+
+    def _get_line_coverage(self, coverage_xml, source_filename):
+        coverage_data = None
+        for entry in coverage_xml.iterfind('.//class'):
+            if not entry.get('filename'):
+                continue
+            if (entry.get('filename') == source_filename or
+                    os.path.abspath(entry.get('filename')) == source_filename):
+                coverage_data = entry
+                break
+            elif source_filename.endswith(entry.get('filename')):
+                coverage_data = entry  # but we might still find a better match...
+        if coverage_data is None:
+            return None
+        return dict(
+            (int(line.get('number')), int(line.get('hits')))
+            for line in coverage_data.iterfind('lines/line')
+        )
+
+    def _htmlify_code(self, code):
+        try:
+            from pygments import highlight
+            from pygments.lexers import CythonLexer
+            from pygments.formatters import HtmlFormatter
+        except ImportError:
+            # no Pygments, just escape the code
+            return html_escape(code)
+
+        html_code = highlight(
+            code, CythonLexer(stripnl=False, stripall=False),
+            HtmlFormatter(nowrap=True))
+        return html_code
+
+    def _save_annotation_body(self, cython_code, generated_code, annotation_items, scopes, covered_lines=None):
+        outlist = [u'<div class="cython">']
+        pos_comment_marker = u'/* \N{HORIZONTAL ELLIPSIS} */\n'
+        new_calls_map = dict(
+            (name, 0) for name in
+            'refnanny trace py_macro_api py_c_api pyx_macro_api pyx_c_api error_goto'.split()
+        ).copy
+
+        self.mark_pos(None)
+
+        def annotate(match):
+            group_name = match.lastgroup
+            calls[group_name] += 1
+            return u"<span class='%s'>%s</span>" % (
+                group_name, match.group(group_name))
+
+        lines = self._htmlify_code(cython_code).splitlines()
+        lineno_width = len(str(len(lines)))
+        if not covered_lines:
+            covered_lines = None
+
+        for k, line in enumerate(lines, 1):
+            try:
+                c_code = generated_code[k]
+            except KeyError:
+                c_code = ''
+            else:
+                c_code = _replace_pos_comment(pos_comment_marker, c_code)
+                if c_code.startswith(pos_comment_marker):
+                    c_code = c_code[len(pos_comment_marker):]
+                c_code = html_escape(c_code)
+
+            calls = new_calls_map()
+            c_code = _parse_code(annotate, c_code)
+            score = (5 * calls['py_c_api'] + 2 * calls['pyx_c_api'] +
+                     calls['py_macro_api'] + calls['pyx_macro_api'])
+
+            if c_code:
+                onclick = self._onclick_attr
+                expandsymbol = '+'
+            else:
+                onclick = ''
+                expandsymbol = '&#xA0;'
+
+            covered = ''
+            if covered_lines is not None and k in covered_lines:
+                hits = covered_lines[k]
+                if hits is not None:
+                    covered = 'run' if hits else 'mis'
+
+            outlist.append(
+                u'<pre class="cython line score-{score}"{onclick}>'
+                # generate line number with expand symbol in front,
+                # and the right  number of digit
+                u'{expandsymbol}<span class="{covered}">{line:0{lineno_width}d}</span>: {code}</pre>\n'.format(
+                    score=score,
+                    expandsymbol=expandsymbol,
+                    covered=covered,
+                    lineno_width=lineno_width,
+                    line=k,
+                    code=line.rstrip(),
+                    onclick=onclick,
+                ))
+            if c_code:
+                outlist.append(u"<pre class='cython code score-{score} {covered}'>{code}</pre>".format(
+                    score=score, covered=covered, code=c_code))
+        outlist.append(u"</div>")
+        return outlist
+
+
+_parse_code = re.compile((
+    br'(?P<refnanny>__Pyx_X?(?:GOT|GIVE)REF|__Pyx_RefNanny[A-Za-z]+)|'
+    br'(?P<trace>__Pyx_Trace[A-Za-z]+)|'
+    br'(?:'
+    br'(?P<pyx_macro_api>__Pyx_[A-Z][A-Z_]+)|'
+    br'(?P<pyx_c_api>(?:__Pyx_[A-Z][a-z_][A-Za-z_]*)|__pyx_convert_[A-Za-z_]*)|'
+    br'(?P<py_macro_api>Py[A-Z][a-z]+_[A-Z][A-Z_]+)|'
+    br'(?P<py_c_api>Py[A-Z][a-z]+_[A-Z][a-z][A-Za-z_]*)'
+    br')(?=\()|'       # look-ahead to exclude subsequent '(' from replacement
+    br'(?P<error_goto>(?:(?<=;) *if [^;]* +)?__PYX_ERR\([^)]+\))'
+).decode('ascii')).sub
+
+
+_replace_pos_comment = re.compile(
+    # this matches what Cython generates as code line marker comment
+    br'^\s*/\*(?:(?:[^*]|\*[^/])*\n)+\s*\*/\s*\n'.decode('ascii'),
+    re.M
+).sub
+
+
+class AnnotationItem(object):
+
+    def __init__(self, style, text, tag="", size=0):
+        self.style = style
+        self.text = text
+        self.tag = tag
+        self.size = size
+
+    def start(self):
+        return u"<span class='cython tag %s' title='%s'>%s" % (self.style, self.text, self.tag)
+
+    def end(self):
+        return self.size, u"</span>"

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/AutoDocTransforms.py

@@ -0,0 +1,214 @@
+from __future__ import absolute_import, print_function
+
+from .Visitor import CythonTransform
+from .StringEncoding import EncodedString
+from . import Options
+from . import PyrexTypes, ExprNodes
+from ..CodeWriter import ExpressionWriter
+
+
+class AnnotationWriter(ExpressionWriter):
+
+    def visit_Node(self, node):
+        self.put(u"<???>")
+
+    def visit_LambdaNode(self, node):
+        # XXX Should we do better?
+        self.put("<lambda>")
+
+
+class EmbedSignature(CythonTransform):
+
+    def __init__(self, context):
+        super(EmbedSignature, self).__init__(context)
+        self.class_name = None
+        self.class_node = None
+
+    def _fmt_expr(self, node):
+        writer = AnnotationWriter()
+        result = writer.write(node)
+        # print(type(node).__name__, '-->', result)
+        return result
+
+    def _fmt_arg(self, arg):
+        if arg.type is PyrexTypes.py_object_type or arg.is_self_arg:
+            doc = arg.name
+        else:
+            doc = arg.type.declaration_code(arg.name, for_display=1)
+
+        if arg.annotation:
+            annotation = self._fmt_expr(arg.annotation)
+            doc = doc + (': %s' % annotation)
+            if arg.default:
+                default = self._fmt_expr(arg.default)
+                doc = doc + (' = %s' % default)
+        elif arg.default:
+            default = self._fmt_expr(arg.default)
+            doc = doc + ('=%s' % default)
+        return doc
+
+    def _fmt_star_arg(self, arg):
+        arg_doc = arg.name
+        if arg.annotation:
+            annotation = self._fmt_expr(arg.annotation)
+            arg_doc = arg_doc + (': %s' % annotation)
+        return arg_doc
+
+    def _fmt_arglist(self, args,
+                     npargs=0, pargs=None,
+                     nkargs=0, kargs=None,
+                     hide_self=False):
+        arglist = []
+        for arg in args:
+            if not hide_self or not arg.entry.is_self_arg:
+                arg_doc = self._fmt_arg(arg)
+                arglist.append(arg_doc)
+        if pargs:
+            arg_doc = self._fmt_star_arg(pargs)
+            arglist.insert(npargs, '*%s' % arg_doc)
+        elif nkargs:
+            arglist.insert(npargs, '*')
+        if kargs:
+            arg_doc = self._fmt_star_arg(kargs)
+            arglist.append('**%s' % arg_doc)
+        return arglist
+
+    def _fmt_ret_type(self, ret):
+        if ret is PyrexTypes.py_object_type:
+            return None
+        else:
+            return ret.declaration_code("", for_display=1)
+
+    def _fmt_signature(self, cls_name, func_name, args,
+                       npargs=0, pargs=None,
+                       nkargs=0, kargs=None,
+                       return_expr=None,
+                       return_type=None, hide_self=False):
+        arglist = self._fmt_arglist(args,
+                                    npargs, pargs,
+                                    nkargs, kargs,
+                                    hide_self=hide_self)
+        arglist_doc = ', '.join(arglist)
+        func_doc = '%s(%s)' % (func_name, arglist_doc)
+        if cls_name:
+            func_doc = '%s.%s' % (cls_name, func_doc)
+        ret_doc = None
+        if return_expr:
+            ret_doc = self._fmt_expr(return_expr)
+        elif return_type:
+            ret_doc = self._fmt_ret_type(return_type)
+        if ret_doc:
+            func_doc = '%s -> %s' % (func_doc, ret_doc)
+        return func_doc
+
+    def _embed_signature(self, signature, node_doc):
+        if node_doc:
+            return "%s\n%s" % (signature, node_doc)
+        else:
+            return signature
+
+    def __call__(self, node):
+        if not Options.docstrings:
+            return node
+        else:
+            return super(EmbedSignature, self).__call__(node)
+
+    def visit_ClassDefNode(self, node):
+        oldname = self.class_name
+        oldclass = self.class_node
+        self.class_node = node
+        try:
+            # PyClassDefNode
+            self.class_name = node.name
+        except AttributeError:
+            # CClassDefNode
+            self.class_name = node.class_name
+        self.visitchildren(node)
+        self.class_name = oldname
+        self.class_node = oldclass
+        return node
+
+    def visit_LambdaNode(self, node):
+        # lambda expressions so not have signature or inner functions
+        return node
+
+    def visit_DefNode(self, node):
+        if not self.current_directives['embedsignature']:
+            return node
+
+        is_constructor = False
+        hide_self = False
+        if node.entry.is_special:
+            is_constructor = self.class_node and node.name == '__init__'
+            if not is_constructor:
+                return node
+            class_name, func_name = None, self.class_name
+            hide_self = True
+        else:
+            class_name, func_name = self.class_name, node.name
+
+        nkargs = getattr(node, 'num_kwonly_args', 0)
+        npargs = len(node.args) - nkargs
+        signature = self._fmt_signature(
+            class_name, func_name, node.args,
+            npargs, node.star_arg,
+            nkargs, node.starstar_arg,
+            return_expr=node.return_type_annotation,
+            return_type=None, hide_self=hide_self)
+        if signature:
+            if is_constructor:
+                doc_holder = self.class_node.entry.type.scope
+            else:
+                doc_holder = node.entry
+
+            if doc_holder.doc is not None:
+                old_doc = doc_holder.doc
+            elif not is_constructor and getattr(node, 'py_func', None) is not None:
+                old_doc = node.py_func.entry.doc
+            else:
+                old_doc = None
+            new_doc = self._embed_signature(signature, old_doc)
+            doc_holder.doc = EncodedString(new_doc)
+            if not is_constructor and getattr(node, 'py_func', None) is not None:
+                node.py_func.entry.doc = EncodedString(new_doc)
+        return node
+
+    def visit_CFuncDefNode(self, node):
+        if not self.current_directives['embedsignature']:
+            return node
+        if not node.overridable: # not cpdef FOO(...):
+            return node
+
+        signature = self._fmt_signature(
+            self.class_name, node.declarator.base.name,
+            node.declarator.args,
+            return_type=node.return_type)
+        if signature:
+            if node.entry.doc is not None:
+                old_doc = node.entry.doc
+            elif getattr(node, 'py_func', None) is not None:
+                old_doc = node.py_func.entry.doc
+            else:
+                old_doc = None
+            new_doc = self._embed_signature(signature, old_doc)
+            node.entry.doc = EncodedString(new_doc)
+            if hasattr(node, 'py_func') and node.py_func is not None:
+                node.py_func.entry.doc = EncodedString(new_doc)
+        return node
+
+    def visit_PropertyNode(self, node):
+        if not self.current_directives['embedsignature']:
+            return node
+
+        entry = node.entry
+        if entry.visibility == 'public':
+            # property synthesised from a cdef public attribute
+            type_name = entry.type.declaration_code("", for_display=1)
+            if not entry.type.is_pyobject:
+                type_name = "'%s'" % type_name
+            elif entry.type.is_extension_type:
+                type_name = entry.type.module_name + '.' + type_name
+            signature = '%s: %s' % (entry.name, type_name)
+            new_doc = self._embed_signature(signature, entry.doc)
+            entry.doc = EncodedString(new_doc)
+        return node

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Buffer.py

@@ -0,0 +1,740 @@
+from __future__ import absolute_import
+
+from .Visitor import CythonTransform
+from .ModuleNode import ModuleNode
+from .Errors import CompileError
+from .UtilityCode import CythonUtilityCode
+from .Code import UtilityCode, TempitaUtilityCode
+
+from . import Options
+from . import Interpreter
+from . import PyrexTypes
+from . import Naming
+from . import Symtab
+
+def dedent(text, reindent=0):
+    from textwrap import dedent
+    text = dedent(text)
+    if reindent > 0:
+        indent = " " * reindent
+        text = '\n'.join([indent + x for x in text.split('\n')])
+    return text
+
+class IntroduceBufferAuxiliaryVars(CythonTransform):
+
+    #
+    # Entry point
+    #
+
+    buffers_exists = False
+    using_memoryview = False
+
+    def __call__(self, node):
+        assert isinstance(node, ModuleNode)
+        self.max_ndim = 0
+        result = super(IntroduceBufferAuxiliaryVars, self).__call__(node)
+        if self.buffers_exists:
+            use_bufstruct_declare_code(node.scope)
+            use_py2_buffer_functions(node.scope)
+
+        return result
+
+
+    #
+    # Basic operations for transforms
+    #
+    def handle_scope(self, node, scope):
+        # For all buffers, insert extra variables in the scope.
+        # The variables are also accessible from the buffer_info
+        # on the buffer entry
+        scope_items = scope.entries.items()
+        bufvars = [entry for name, entry in scope_items if entry.type.is_buffer]
+        if len(bufvars) > 0:
+            bufvars.sort(key=lambda entry: entry.name)
+            self.buffers_exists = True
+
+        memviewslicevars = [entry for name, entry in scope_items if entry.type.is_memoryviewslice]
+        if len(memviewslicevars) > 0:
+            self.buffers_exists = True
+
+
+        for (name, entry) in scope_items:
+            if name == 'memoryview' and isinstance(entry.utility_code_definition, CythonUtilityCode):
+                self.using_memoryview = True
+                break
+        del scope_items
+
+        if isinstance(node, ModuleNode) and len(bufvars) > 0:
+            # for now...note that pos is wrong
+            raise CompileError(node.pos, "Buffer vars not allowed in module scope")
+        for entry in bufvars:
+            if entry.type.dtype.is_ptr:
+                raise CompileError(node.pos, "Buffers with pointer types not yet supported.")
+
+            name = entry.name
+            buftype = entry.type
+            if buftype.ndim > Options.buffer_max_dims:
+                raise CompileError(node.pos,
+                        "Buffer ndims exceeds Options.buffer_max_dims = %d" % Options.buffer_max_dims)
+            if buftype.ndim > self.max_ndim:
+                self.max_ndim = buftype.ndim
+
+            # Declare auxiliary vars
+            def decvar(type, prefix):
+                cname = scope.mangle(prefix, name)
+                aux_var = scope.declare_var(name=None, cname=cname,
+                                            type=type, pos=node.pos)
+                if entry.is_arg:
+                    aux_var.used = True # otherwise, NameNode will mark whether it is used
+
+                return aux_var
+
+            auxvars = ((PyrexTypes.c_pyx_buffer_nd_type, Naming.pybuffernd_prefix),
+                       (PyrexTypes.c_pyx_buffer_type, Naming.pybufferstruct_prefix))
+            pybuffernd, rcbuffer = [decvar(type, prefix) for (type, prefix) in auxvars]
+
+            entry.buffer_aux = Symtab.BufferAux(pybuffernd, rcbuffer)
+
+        scope.buffer_entries = bufvars
+        self.scope = scope
+
+    def visit_ModuleNode(self, node):
+        self.handle_scope(node, node.scope)
+        self.visitchildren(node)
+        return node
+
+    def visit_FuncDefNode(self, node):
+        self.handle_scope(node, node.local_scope)
+        self.visitchildren(node)
+        return node
+
+#
+# Analysis
+#
+buffer_options = ("dtype", "ndim", "mode", "negative_indices", "cast") # ordered!
+buffer_defaults = {"ndim": 1, "mode": "full", "negative_indices": True, "cast": False}
+buffer_positional_options_count = 1 # anything beyond this needs keyword argument
+
+ERR_BUF_OPTION_UNKNOWN = '"%s" is not a buffer option'
+ERR_BUF_TOO_MANY = 'Too many buffer options'
+ERR_BUF_DUP = '"%s" buffer option already supplied'
+ERR_BUF_MISSING = '"%s" missing'
+ERR_BUF_MODE = 'Only allowed buffer modes are: "c", "fortran", "full", "strided" (as a compile-time string)'
+ERR_BUF_NDIM = 'ndim must be a non-negative integer'
+ERR_BUF_DTYPE = 'dtype must be "object", numeric type or a struct'
+ERR_BUF_BOOL = '"%s" must be a boolean'
+
+def analyse_buffer_options(globalpos, env, posargs, dictargs, defaults=None, need_complete=True):
+    """
+    Must be called during type analysis, as analyse is called
+    on the dtype argument.
+
+    posargs and dictargs should consist of a list and a dict
+    of tuples (value, pos). Defaults should be a dict of values.
+
+    Returns a dict containing all the options a buffer can have and
+    its value (with the positions stripped).
+    """
+    if defaults is None:
+        defaults = buffer_defaults
+
+    posargs, dictargs = Interpreter.interpret_compiletime_options(
+        posargs, dictargs, type_env=env, type_args=(0, 'dtype'))
+
+    if len(posargs) > buffer_positional_options_count:
+        raise CompileError(posargs[-1][1], ERR_BUF_TOO_MANY)
+
+    options = {}
+    for name, (value, pos) in dictargs.items():
+        if not name in buffer_options:
+            raise CompileError(pos, ERR_BUF_OPTION_UNKNOWN % name)
+        options[name] = value
+
+    for name, (value, pos) in zip(buffer_options, posargs):
+        if not name in buffer_options:
+            raise CompileError(pos, ERR_BUF_OPTION_UNKNOWN % name)
+        if name in options:
+            raise CompileError(pos, ERR_BUF_DUP % name)
+        options[name] = value
+
+    # Check that they are all there and copy defaults
+    for name in buffer_options:
+        if not name in options:
+            try:
+                options[name] = defaults[name]
+            except KeyError:
+                if need_complete:
+                    raise CompileError(globalpos, ERR_BUF_MISSING % name)
+
+    dtype = options.get("dtype")
+    if dtype and dtype.is_extension_type:
+        raise CompileError(globalpos, ERR_BUF_DTYPE)
+
+    ndim = options.get("ndim")
+    if ndim and (not isinstance(ndim, int) or ndim < 0):
+        raise CompileError(globalpos, ERR_BUF_NDIM)
+
+    mode = options.get("mode")
+    if mode and not (mode in ('full', 'strided', 'c', 'fortran')):
+        raise CompileError(globalpos, ERR_BUF_MODE)
+
+    def assert_bool(name):
+        x = options.get(name)
+        if not isinstance(x, bool):
+            raise CompileError(globalpos, ERR_BUF_BOOL % name)
+
+    assert_bool('negative_indices')
+    assert_bool('cast')
+
+    return options
+
+
+#
+# Code generation
+#
+
+class BufferEntry(object):
+    def __init__(self, entry):
+        self.entry = entry
+        self.type = entry.type
+        self.cname = entry.buffer_aux.buflocal_nd_var.cname
+        self.buf_ptr = "%s.rcbuffer->pybuffer.buf" % self.cname
+        self.buf_ptr_type = entry.type.buffer_ptr_type
+        self.init_attributes()
+
+    def init_attributes(self):
+        self.shape = self.get_buf_shapevars()
+        self.strides = self.get_buf_stridevars()
+        self.suboffsets = self.get_buf_suboffsetvars()
+
+    def get_buf_suboffsetvars(self):
+        return self._for_all_ndim("%s.diminfo[%d].suboffsets")
+
+    def get_buf_stridevars(self):
+        return self._for_all_ndim("%s.diminfo[%d].strides")
+
+    def get_buf_shapevars(self):
+        return self._for_all_ndim("%s.diminfo[%d].shape")
+
+    def _for_all_ndim(self, s):
+        return [s % (self.cname, i) for i in range(self.type.ndim)]
+
+    def generate_buffer_lookup_code(self, code, index_cnames):
+        # Create buffer lookup and return it
+        # This is done via utility macros/inline functions, which vary
+        # according to the access mode used.
+        params = []
+        nd = self.type.ndim
+        mode = self.type.mode
+        if mode == 'full':
+            for i, s, o in zip(index_cnames,
+                               self.get_buf_stridevars(),
+                               self.get_buf_suboffsetvars()):
+                params.append(i)
+                params.append(s)
+                params.append(o)
+            funcname = "__Pyx_BufPtrFull%dd" % nd
+            funcgen = buf_lookup_full_code
+        else:
+            if mode == 'strided':
+                funcname = "__Pyx_BufPtrStrided%dd" % nd
+                funcgen = buf_lookup_strided_code
+            elif mode == 'c':
+                funcname = "__Pyx_BufPtrCContig%dd" % nd
+                funcgen = buf_lookup_c_code
+            elif mode == 'fortran':
+                funcname = "__Pyx_BufPtrFortranContig%dd" % nd
+                funcgen = buf_lookup_fortran_code
+            else:
+                assert False
+            for i, s in zip(index_cnames, self.get_buf_stridevars()):
+                params.append(i)
+                params.append(s)
+
+        # Make sure the utility code is available
+        if funcname not in code.globalstate.utility_codes:
+            code.globalstate.utility_codes.add(funcname)
+            protocode = code.globalstate['utility_code_proto']
+            defcode = code.globalstate['utility_code_def']
+            funcgen(protocode, defcode, name=funcname, nd=nd)
+
+        buf_ptr_type_code = self.buf_ptr_type.empty_declaration_code()
+        ptrcode = "%s(%s, %s, %s)" % (funcname, buf_ptr_type_code, self.buf_ptr,
+                                      ", ".join(params))
+        return ptrcode
+
+
+def get_flags(buffer_aux, buffer_type):
+    flags = 'PyBUF_FORMAT'
+    mode = buffer_type.mode
+    if mode == 'full':
+        flags += '| PyBUF_INDIRECT'
+    elif mode == 'strided':
+        flags += '| PyBUF_STRIDES'
+    elif mode == 'c':
+        flags += '| PyBUF_C_CONTIGUOUS'
+    elif mode == 'fortran':
+        flags += '| PyBUF_F_CONTIGUOUS'
+    else:
+        assert False
+    if buffer_aux.writable_needed: flags += "| PyBUF_WRITABLE"
+    return flags
+
+def used_buffer_aux_vars(entry):
+    buffer_aux = entry.buffer_aux
+    buffer_aux.buflocal_nd_var.used = True
+    buffer_aux.rcbuf_var.used = True
+
+def put_unpack_buffer_aux_into_scope(buf_entry, code):
+    # Generate code to copy the needed struct info into local
+    # variables.
+    buffer_aux, mode = buf_entry.buffer_aux, buf_entry.type.mode
+    pybuffernd_struct = buffer_aux.buflocal_nd_var.cname
+
+    fldnames = ['strides', 'shape']
+    if mode == 'full':
+        fldnames.append('suboffsets')
+
+    ln = []
+    for i in range(buf_entry.type.ndim):
+        for fldname in fldnames:
+            ln.append("%s.diminfo[%d].%s = %s.rcbuffer->pybuffer.%s[%d];" % \
+                    (pybuffernd_struct, i, fldname,
+                     pybuffernd_struct, fldname, i))
+    code.putln(' '.join(ln))
+
+def put_init_vars(entry, code):
+    bufaux = entry.buffer_aux
+    pybuffernd_struct = bufaux.buflocal_nd_var.cname
+    pybuffer_struct = bufaux.rcbuf_var.cname
+    # init pybuffer_struct
+    code.putln("%s.pybuffer.buf = NULL;" % pybuffer_struct)
+    code.putln("%s.refcount = 0;" % pybuffer_struct)
+    # init the buffer object
+    # code.put_init_var_to_py_none(entry)
+    # init the pybuffernd_struct
+    code.putln("%s.data = NULL;" % pybuffernd_struct)
+    code.putln("%s.rcbuffer = &%s;" % (pybuffernd_struct, pybuffer_struct))
+
+
+def put_acquire_arg_buffer(entry, code, pos):
+    buffer_aux = entry.buffer_aux
+    getbuffer = get_getbuffer_call(code, entry.cname, buffer_aux, entry.type)
+
+    # Acquire any new buffer
+    code.putln("{")
+    code.putln("__Pyx_BufFmt_StackElem __pyx_stack[%d];" % entry.type.dtype.struct_nesting_depth())
+    code.putln(code.error_goto_if("%s == -1" % getbuffer, pos))
+    code.putln("}")
+    # An exception raised in arg parsing cannot be caught, so no
+    # need to care about the buffer then.
+    put_unpack_buffer_aux_into_scope(entry, code)
+
+
+def put_release_buffer_code(code, entry):
+    code.globalstate.use_utility_code(acquire_utility_code)
+    code.putln("__Pyx_SafeReleaseBuffer(&%s.rcbuffer->pybuffer);" % entry.buffer_aux.buflocal_nd_var.cname)
+
+
+def get_getbuffer_call(code, obj_cname, buffer_aux, buffer_type):
+    ndim = buffer_type.ndim
+    cast = int(buffer_type.cast)
+    flags = get_flags(buffer_aux, buffer_type)
+    pybuffernd_struct = buffer_aux.buflocal_nd_var.cname
+
+    dtype_typeinfo = get_type_information_cname(code, buffer_type.dtype)
+
+    code.globalstate.use_utility_code(acquire_utility_code)
+    return ("__Pyx_GetBufferAndValidate(&%(pybuffernd_struct)s.rcbuffer->pybuffer, "
+            "(PyObject*)%(obj_cname)s, &%(dtype_typeinfo)s, %(flags)s, %(ndim)d, "
+            "%(cast)d, __pyx_stack)" % locals())
+
+
+def put_assign_to_buffer(lhs_cname, rhs_cname, buf_entry,
+                         is_initialized, pos, code):
+    """
+    Generate code for reassigning a buffer variables. This only deals with getting
+    the buffer auxiliary structure and variables set up correctly, the assignment
+    itself and refcounting is the responsibility of the caller.
+
+    However, the assignment operation may throw an exception so that the reassignment
+    never happens.
+
+    Depending on the circumstances there are two possible outcomes:
+    - Old buffer released, new acquired, rhs assigned to lhs
+    - Old buffer released, new acquired which fails, reaqcuire old lhs buffer
+      (which may or may not succeed).
+    """
+
+    buffer_aux, buffer_type = buf_entry.buffer_aux, buf_entry.type
+    pybuffernd_struct = buffer_aux.buflocal_nd_var.cname
+    flags = get_flags(buffer_aux, buffer_type)
+
+    code.putln("{")  # Set up necessary stack for getbuffer
+    code.putln("__Pyx_BufFmt_StackElem __pyx_stack[%d];" % buffer_type.dtype.struct_nesting_depth())
+
+    getbuffer = get_getbuffer_call(code, "%s", buffer_aux, buffer_type) # fill in object below
+
+    if is_initialized:
+        # Release any existing buffer
+        code.putln('__Pyx_SafeReleaseBuffer(&%s.rcbuffer->pybuffer);' % pybuffernd_struct)
+        # Acquire
+        retcode_cname = code.funcstate.allocate_temp(PyrexTypes.c_int_type, manage_ref=False)
+        code.putln("%s = %s;" % (retcode_cname, getbuffer % rhs_cname))
+        code.putln('if (%s) {' % (code.unlikely("%s < 0" % retcode_cname)))
+        # If acquisition failed, attempt to reacquire the old buffer
+        # before raising the exception. A failure of reacquisition
+        # will cause the reacquisition exception to be reported, one
+        # can consider working around this later.
+        exc_temps = tuple(code.funcstate.allocate_temp(PyrexTypes.py_object_type, manage_ref=False)
+                          for _ in range(3))
+        code.putln('PyErr_Fetch(&%s, &%s, &%s);' % exc_temps)
+        code.putln('if (%s) {' % code.unlikely("%s == -1" % (getbuffer % lhs_cname)))
+        code.putln('Py_XDECREF(%s); Py_XDECREF(%s); Py_XDECREF(%s);' % exc_temps)  # Do not refnanny these!
+        code.globalstate.use_utility_code(raise_buffer_fallback_code)
+        code.putln('__Pyx_RaiseBufferFallbackError();')
+        code.putln('} else {')
+        code.putln('PyErr_Restore(%s, %s, %s);' % exc_temps)
+        code.putln('}')
+        code.putln('%s = %s = %s = 0;' % exc_temps)
+        for t in exc_temps:
+            code.funcstate.release_temp(t)
+        code.putln('}')
+        # Unpack indices
+        put_unpack_buffer_aux_into_scope(buf_entry, code)
+        code.putln(code.error_goto_if_neg(retcode_cname, pos))
+        code.funcstate.release_temp(retcode_cname)
+    else:
+        # Our entry had no previous value, so set to None when acquisition fails.
+        # In this case, auxiliary vars should be set up right in initialization to a zero-buffer,
+        # so it suffices to set the buf field to NULL.
+        code.putln('if (%s) {' % code.unlikely("%s == -1" % (getbuffer % rhs_cname)))
+        code.putln('%s = %s; __Pyx_INCREF(Py_None); %s.rcbuffer->pybuffer.buf = NULL;' %
+                   (lhs_cname,
+                    PyrexTypes.typecast(buffer_type, PyrexTypes.py_object_type, "Py_None"),
+                    pybuffernd_struct))
+        code.putln(code.error_goto(pos))
+        code.put('} else {')
+        # Unpack indices
+        put_unpack_buffer_aux_into_scope(buf_entry, code)
+        code.putln('}')
+
+    code.putln("}") # Release stack
+
+
+def put_buffer_lookup_code(entry, index_signeds, index_cnames, directives,
+                           pos, code, negative_indices, in_nogil_context):
+    """
+    Generates code to process indices and calculate an offset into
+    a buffer. Returns a C string which gives a pointer which can be
+    read from or written to at will (it is an expression so caller should
+    store it in a temporary if it is used more than once).
+
+    As the bounds checking can have any number of combinations of unsigned
+    arguments, smart optimizations etc. we insert it directly in the function
+    body. The lookup however is delegated to a inline function that is instantiated
+    once per ndim (lookup with suboffsets tend to get quite complicated).
+
+    entry is a BufferEntry
+    """
+    negative_indices = directives['wraparound'] and negative_indices
+
+    if directives['boundscheck']:
+        # Check bounds and fix negative indices.
+        # We allocate a temporary which is initialized to -1, meaning OK (!).
+        # If an error occurs, the temp is set to the index dimension the
+        # error is occurring at.
+        failed_dim_temp = code.funcstate.allocate_temp(PyrexTypes.c_int_type, manage_ref=False)
+        code.putln("%s = -1;" % failed_dim_temp)
+        for dim, (signed, cname, shape) in enumerate(zip(index_signeds, index_cnames, entry.get_buf_shapevars())):
+            if signed != 0:
+                # not unsigned, deal with negative index
+                code.putln("if (%s < 0) {" % cname)
+                if negative_indices:
+                    code.putln("%s += %s;" % (cname, shape))
+                    code.putln("if (%s) %s = %d;" % (
+                        code.unlikely("%s < 0" % cname),
+                        failed_dim_temp, dim))
+                else:
+                    code.putln("%s = %d;" % (failed_dim_temp, dim))
+                code.put("} else ")
+            # check bounds in positive direction
+            if signed != 0:
+                cast = ""
+            else:
+                cast = "(size_t)"
+            code.putln("if (%s) %s = %d;" % (
+                code.unlikely("%s >= %s%s" % (cname, cast, shape)),
+                failed_dim_temp, dim))
+
+        if in_nogil_context:
+            code.globalstate.use_utility_code(raise_indexerror_nogil)
+            func = '__Pyx_RaiseBufferIndexErrorNogil'
+        else:
+            code.globalstate.use_utility_code(raise_indexerror_code)
+            func = '__Pyx_RaiseBufferIndexError'
+
+        code.putln("if (%s) {" % code.unlikely("%s != -1" % failed_dim_temp))
+        code.putln('%s(%s);' % (func, failed_dim_temp))
+        code.putln(code.error_goto(pos))
+        code.putln('}')
+        code.funcstate.release_temp(failed_dim_temp)
+    elif negative_indices:
+        # Only fix negative indices.
+        for signed, cname, shape in zip(index_signeds, index_cnames, entry.get_buf_shapevars()):
+            if signed != 0:
+                code.putln("if (%s < 0) %s += %s;" % (cname, cname, shape))
+
+    return entry.generate_buffer_lookup_code(code, index_cnames)
+
+
+def use_bufstruct_declare_code(env):
+    env.use_utility_code(buffer_struct_declare_code)
+
+
+def buf_lookup_full_code(proto, defin, name, nd):
+    """
+    Generates a buffer lookup function for the right number
+    of dimensions. The function gives back a void* at the right location.
+    """
+    # _i_ndex, _s_tride, sub_o_ffset
+    macroargs = ", ".join(["i%d, s%d, o%d" % (i, i, i) for i in range(nd)])
+    proto.putln("#define %s(type, buf, %s) (type)(%s_imp(buf, %s))" % (name, macroargs, name, macroargs))
+
+    funcargs = ", ".join(["Py_ssize_t i%d, Py_ssize_t s%d, Py_ssize_t o%d" % (i, i, i) for i in range(nd)])
+    proto.putln("static CYTHON_INLINE void* %s_imp(void* buf, %s);" % (name, funcargs))
+    defin.putln(dedent("""
+        static CYTHON_INLINE void* %s_imp(void* buf, %s) {
+          char* ptr = (char*)buf;
+        """) % (name, funcargs) + "".join([dedent("""\
+          ptr += s%d * i%d;
+          if (o%d >= 0) ptr = *((char**)ptr) + o%d;
+        """) % (i, i, i, i) for i in range(nd)]
+        ) + "\nreturn ptr;\n}")
+
+
+def buf_lookup_strided_code(proto, defin, name, nd):
+    """
+    Generates a buffer lookup function for the right number
+    of dimensions. The function gives back a void* at the right location.
+    """
+    # _i_ndex, _s_tride
+    args = ", ".join(["i%d, s%d" % (i, i) for i in range(nd)])
+    offset = " + ".join(["i%d * s%d" % (i, i) for i in range(nd)])
+    proto.putln("#define %s(type, buf, %s) (type)((char*)buf + %s)" % (name, args, offset))
+
+
+def buf_lookup_c_code(proto, defin, name, nd):
+    """
+    Similar to strided lookup, but can assume that the last dimension
+    doesn't need a multiplication as long as.
+    Still we keep the same signature for now.
+    """
+    if nd == 1:
+        proto.putln("#define %s(type, buf, i0, s0) ((type)buf + i0)" % name)
+    else:
+        args = ", ".join(["i%d, s%d" % (i, i) for i in range(nd)])
+        offset = " + ".join(["i%d * s%d" % (i, i) for i in range(nd - 1)])
+        proto.putln("#define %s(type, buf, %s) ((type)((char*)buf + %s) + i%d)" % (name, args, offset, nd - 1))
+
+
+def buf_lookup_fortran_code(proto, defin, name, nd):
+    """
+    Like C lookup, but the first index is optimized instead.
+    """
+    if nd == 1:
+        proto.putln("#define %s(type, buf, i0, s0) ((type)buf + i0)" % name)
+    else:
+        args = ", ".join(["i%d, s%d" % (i, i) for i in range(nd)])
+        offset = " + ".join(["i%d * s%d" % (i, i) for i in range(1, nd)])
+        proto.putln("#define %s(type, buf, %s) ((type)((char*)buf + %s) + i%d)" % (name, args, offset, 0))
+
+
+def use_py2_buffer_functions(env):
+    env.use_utility_code(GetAndReleaseBufferUtilityCode())
+
+
+class GetAndReleaseBufferUtilityCode(object):
+    # Emulation of PyObject_GetBuffer and PyBuffer_Release for Python 2.
+    # For >= 2.6 we do double mode -- use the new buffer interface on objects
+    # which has the right tp_flags set, but emulation otherwise.
+
+    requires = None
+    is_cython_utility = False
+
+    def __init__(self):
+        pass
+
+    def __eq__(self, other):
+        return isinstance(other, GetAndReleaseBufferUtilityCode)
+
+    def __hash__(self):
+        return 24342342
+
+    def get_tree(self, **kwargs): pass
+
+    def put_code(self, output):
+        code = output['utility_code_def']
+        proto_code = output['utility_code_proto']
+        env = output.module_node.scope
+        cython_scope = env.context.cython_scope
+
+        # Search all types for __getbuffer__ overloads
+        types = []
+        visited_scopes = set()
+        def find_buffer_types(scope):
+            if scope in visited_scopes:
+                return
+            visited_scopes.add(scope)
+            for m in scope.cimported_modules:
+                find_buffer_types(m)
+            for e in scope.type_entries:
+                if isinstance(e.utility_code_definition, CythonUtilityCode):
+                    continue
+                t = e.type
+                if t.is_extension_type:
+                    if scope is cython_scope and not e.used:
+                        continue
+                    release = get = None
+                    for x in t.scope.pyfunc_entries:
+                        if x.name == u"__getbuffer__": get = x.func_cname
+                        elif x.name == u"__releasebuffer__": release = x.func_cname
+                    if get:
+                        types.append((t.typeptr_cname, get, release))
+
+        find_buffer_types(env)
+
+        util_code = TempitaUtilityCode.load(
+            "GetAndReleaseBuffer", from_file="Buffer.c",
+            context=dict(types=types))
+
+        proto = util_code.format_code(util_code.proto)
+        impl = util_code.format_code(
+            util_code.inject_string_constants(util_code.impl, output)[1])
+
+        proto_code.putln(proto)
+        code.putln(impl)
+
+
+def mangle_dtype_name(dtype):
+    # Use prefixes to separate user defined types from builtins
+    # (consider "typedef float unsigned_int")
+    if dtype.is_pyobject:
+        return "object"
+    elif dtype.is_ptr:
+        return "ptr"
+    else:
+        if dtype.is_typedef or dtype.is_struct_or_union:
+            prefix = "nn_"
+        else:
+            prefix = ""
+        return prefix + dtype.specialization_name()
+
+def get_type_information_cname(code, dtype, maxdepth=None):
+    """
+    Output the run-time type information (__Pyx_TypeInfo) for given dtype,
+    and return the name of the type info struct.
+
+    Structs with two floats of the same size are encoded as complex numbers.
+    One can separate between complex numbers declared as struct or with native
+    encoding by inspecting to see if the fields field of the type is
+    filled in.
+    """
+    namesuffix = mangle_dtype_name(dtype)
+    name = "__Pyx_TypeInfo_%s" % namesuffix
+    structinfo_name = "__Pyx_StructFields_%s" % namesuffix
+
+    if dtype.is_error: return "<error>"
+
+    # It's critical that walking the type info doesn't use more stack
+    # depth than dtype.struct_nesting_depth() returns, so use an assertion for this
+    if maxdepth is None: maxdepth = dtype.struct_nesting_depth()
+    if maxdepth <= 0:
+        assert False
+
+    if name not in code.globalstate.utility_codes:
+        code.globalstate.utility_codes.add(name)
+        typecode = code.globalstate['typeinfo']
+
+        arraysizes = []
+        if dtype.is_array:
+            while dtype.is_array:
+                arraysizes.append(dtype.size)
+                dtype = dtype.base_type
+
+        complex_possible = dtype.is_struct_or_union and dtype.can_be_complex()
+
+        declcode = dtype.empty_declaration_code()
+        if dtype.is_simple_buffer_dtype():
+            structinfo_name = "NULL"
+        elif dtype.is_struct:
+            struct_scope = dtype.scope
+            if dtype.is_const:
+                struct_scope = struct_scope.const_base_type_scope
+            # Must pre-call all used types in order not to recurse during utility code writing.
+            fields = struct_scope.var_entries
+            assert len(fields) > 0
+            types = [get_type_information_cname(code, f.type, maxdepth - 1)
+                     for f in fields]
+            typecode.putln("static __Pyx_StructField %s[] = {" % structinfo_name, safe=True)
+            for f, typeinfo in zip(fields, types):
+                typecode.putln('  {&%s, "%s", offsetof(%s, %s)},' %
+                           (typeinfo, f.name, dtype.empty_declaration_code(), f.cname), safe=True)
+            typecode.putln('  {NULL, NULL, 0}', safe=True)
+            typecode.putln("};", safe=True)
+        else:
+            assert False
+
+        rep = str(dtype)
+
+        flags = "0"
+        is_unsigned = "0"
+        if dtype is PyrexTypes.c_char_type:
+            is_unsigned = "IS_UNSIGNED(%s)" % declcode
+            typegroup = "'H'"
+        elif dtype.is_int:
+            is_unsigned = "IS_UNSIGNED(%s)" % declcode
+            typegroup = "%s ? 'U' : 'I'" % is_unsigned
+        elif complex_possible or dtype.is_complex:
+            typegroup = "'C'"
+        elif dtype.is_float:
+            typegroup = "'R'"
+        elif dtype.is_struct:
+            typegroup = "'S'"
+            if dtype.packed:
+                flags = "__PYX_BUF_FLAGS_PACKED_STRUCT"
+        elif dtype.is_pyobject:
+            typegroup = "'O'"
+        else:
+            assert False, dtype
+
+        typeinfo = ('static __Pyx_TypeInfo %s = '
+                        '{ "%s", %s, sizeof(%s), { %s }, %s, %s, %s, %s };')
+        tup = (name, rep, structinfo_name, declcode,
+               ', '.join([str(x) for x in arraysizes]) or '0', len(arraysizes),
+               typegroup, is_unsigned, flags)
+        typecode.putln(typeinfo % tup, safe=True)
+
+    return name
+
+def load_buffer_utility(util_code_name, context=None, **kwargs):
+    if context is None:
+        return UtilityCode.load(util_code_name, "Buffer.c", **kwargs)
+    else:
+        return TempitaUtilityCode.load(util_code_name, "Buffer.c", context=context, **kwargs)
+
+context = dict(max_dims=Options.buffer_max_dims)
+buffer_struct_declare_code = load_buffer_utility("BufferStructDeclare", context=context)
+buffer_formats_declare_code = load_buffer_utility("BufferFormatStructs")
+
+# Utility function to set the right exception
+# The caller should immediately goto_error
+raise_indexerror_code = load_buffer_utility("BufferIndexError")
+raise_indexerror_nogil = load_buffer_utility("BufferIndexErrorNogil")
+raise_buffer_fallback_code = load_buffer_utility("BufferFallbackError")
+
+acquire_utility_code = load_buffer_utility("BufferGetAndValidate", context=context)
+buffer_format_check_code = load_buffer_utility("BufferFormatCheck", context=context)
+
+# See utility code BufferFormatFromTypeInfo
+_typeinfo_to_format_code = load_buffer_utility("TypeInfoToFormat")

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Builtin.py

@@ -0,0 +1,444 @@
+#
+#   Builtin Definitions
+#
+
+from __future__ import absolute_import
+
+from .Symtab import BuiltinScope, StructOrUnionScope
+from .Code import UtilityCode
+from .TypeSlots import Signature
+from . import PyrexTypes
+from . import Options
+
+
+# C-level implementations of builtin types, functions and methods
+
+iter_next_utility_code = UtilityCode.load("IterNext", "ObjectHandling.c")
+getattr_utility_code = UtilityCode.load("GetAttr", "ObjectHandling.c")
+getattr3_utility_code = UtilityCode.load("GetAttr3", "Builtins.c")
+pyexec_utility_code = UtilityCode.load("PyExec", "Builtins.c")
+pyexec_globals_utility_code = UtilityCode.load("PyExecGlobals", "Builtins.c")
+globals_utility_code = UtilityCode.load("Globals", "Builtins.c")
+
+builtin_utility_code = {
+    'StopAsyncIteration': UtilityCode.load_cached("StopAsyncIteration", "Coroutine.c"),
+}
+
+
+# mapping from builtins to their C-level equivalents
+
+class _BuiltinOverride(object):
+    def __init__(self, py_name, args, ret_type, cname, py_equiv="*",
+                 utility_code=None, sig=None, func_type=None,
+                 is_strict_signature=False, builtin_return_type=None):
+        self.py_name, self.cname, self.py_equiv = py_name, cname, py_equiv
+        self.args, self.ret_type = args, ret_type
+        self.func_type, self.sig = func_type, sig
+        self.builtin_return_type = builtin_return_type
+        self.is_strict_signature = is_strict_signature
+        self.utility_code = utility_code
+
+    def build_func_type(self, sig=None, self_arg=None):
+        if sig is None:
+            sig = Signature(self.args, self.ret_type)
+            sig.exception_check = False  # not needed for the current builtins
+        func_type = sig.function_type(self_arg)
+        if self.is_strict_signature:
+            func_type.is_strict_signature = True
+        if self.builtin_return_type:
+            func_type.return_type = builtin_types[self.builtin_return_type]
+        return func_type
+
+
+class BuiltinAttribute(object):
+    def __init__(self, py_name, cname=None, field_type=None, field_type_name=None):
+        self.py_name = py_name
+        self.cname = cname or py_name
+        self.field_type_name = field_type_name # can't do the lookup before the type is declared!
+        self.field_type = field_type
+
+    def declare_in_type(self, self_type):
+        if self.field_type_name is not None:
+            # lazy type lookup
+            field_type = builtin_scope.lookup(self.field_type_name).type
+        else:
+            field_type = self.field_type or PyrexTypes.py_object_type
+        entry = self_type.scope.declare(self.py_name, self.cname, field_type, None, 'private')
+        entry.is_variable = True
+
+
+class BuiltinFunction(_BuiltinOverride):
+    def declare_in_scope(self, scope):
+        func_type, sig = self.func_type, self.sig
+        if func_type is None:
+            func_type = self.build_func_type(sig)
+        scope.declare_builtin_cfunction(self.py_name, func_type, self.cname,
+                                        self.py_equiv, self.utility_code)
+
+
+class BuiltinMethod(_BuiltinOverride):
+    def declare_in_type(self, self_type):
+        method_type, sig = self.func_type, self.sig
+        if method_type is None:
+            # override 'self' type (first argument)
+            self_arg = PyrexTypes.CFuncTypeArg("", self_type, None)
+            self_arg.not_none = True
+            self_arg.accept_builtin_subtypes = True
+            method_type = self.build_func_type(sig, self_arg)
+        self_type.scope.declare_builtin_cfunction(
+            self.py_name, method_type, self.cname, utility_code=self.utility_code)
+
+
+builtin_function_table = [
+    # name,        args,   return,  C API func,           py equiv = "*"
+    BuiltinFunction('abs',        "d",    "d",     "fabs",
+                    is_strict_signature = True),
+    BuiltinFunction('abs',        "f",    "f",     "fabsf",
+                    is_strict_signature = True),
+    BuiltinFunction('abs',        "i",    "i",     "abs",
+                    is_strict_signature = True),
+    BuiltinFunction('abs',        "l",    "l",     "labs",
+                    is_strict_signature = True),
+    BuiltinFunction('abs',        None,    None,   "__Pyx_abs_longlong",
+                utility_code = UtilityCode.load("abs_longlong", "Builtins.c"),
+                func_type = PyrexTypes.CFuncType(
+                    PyrexTypes.c_longlong_type, [
+                        PyrexTypes.CFuncTypeArg("arg", PyrexTypes.c_longlong_type, None)
+                        ],
+                    is_strict_signature = True, nogil=True)),
+    ] + list(
+        BuiltinFunction('abs',        None,    None,   "/*abs_{0}*/".format(t.specialization_name()),
+                    func_type = PyrexTypes.CFuncType(
+                        t,
+                        [PyrexTypes.CFuncTypeArg("arg", t, None)],
+                        is_strict_signature = True, nogil=True))
+                            for t in (PyrexTypes.c_uint_type, PyrexTypes.c_ulong_type, PyrexTypes.c_ulonglong_type)
+             ) + list(
+        BuiltinFunction('abs',        None,    None,   "__Pyx_c_abs{0}".format(t.funcsuffix),
+                    func_type = PyrexTypes.CFuncType(
+                        t.real_type, [
+                            PyrexTypes.CFuncTypeArg("arg", t, None)
+                            ],
+                            is_strict_signature = True, nogil=True))
+                        for t in (PyrexTypes.c_float_complex_type,
+                                  PyrexTypes.c_double_complex_type,
+                                  PyrexTypes.c_longdouble_complex_type)
+                        ) + [
+    BuiltinFunction('abs',        "O",    "O",     "__Pyx_PyNumber_Absolute",
+                    utility_code=UtilityCode.load("py_abs", "Builtins.c")),
+    #('all',       "",     "",      ""),
+    #('any',       "",     "",      ""),
+    #('ascii',     "",     "",      ""),
+    #('bin',       "",     "",      ""),
+    BuiltinFunction('callable',   "O",    "b",     "__Pyx_PyCallable_Check",
+                    utility_code = UtilityCode.load("CallableCheck", "ObjectHandling.c")),
+    #('chr',       "",     "",      ""),
+    #('cmp', "",   "",     "",      ""), # int PyObject_Cmp(PyObject *o1, PyObject *o2, int *result)
+    #('compile',   "",     "",      ""), # PyObject* Py_CompileString(    char *str, char *filename, int start)
+    BuiltinFunction('delattr',    "OO",   "r",     "PyObject_DelAttr"),
+    BuiltinFunction('dir',        "O",    "O",     "PyObject_Dir"),
+    BuiltinFunction('divmod',     "OO",   "O",     "PyNumber_Divmod"),
+    BuiltinFunction('exec',       "O",    "O",     "__Pyx_PyExecGlobals",
+                    utility_code = pyexec_globals_utility_code),
+    BuiltinFunction('exec',       "OO",   "O",     "__Pyx_PyExec2",
+                    utility_code = pyexec_utility_code),
+    BuiltinFunction('exec',       "OOO",  "O",     "__Pyx_PyExec3",
+                    utility_code = pyexec_utility_code),
+    #('eval',      "",     "",      ""),
+    #('execfile',  "",     "",      ""),
+    #('filter',    "",     "",      ""),
+    BuiltinFunction('getattr3',   "OOO",  "O",     "__Pyx_GetAttr3",     "getattr",
+                    utility_code=getattr3_utility_code),  # Pyrex legacy
+    BuiltinFunction('getattr',    "OOO",  "O",     "__Pyx_GetAttr3",
+                    utility_code=getattr3_utility_code),
+    BuiltinFunction('getattr',    "OO",   "O",     "__Pyx_GetAttr",
+                    utility_code=getattr_utility_code),
+    BuiltinFunction('hasattr',    "OO",   "b",     "__Pyx_HasAttr",
+                    utility_code = UtilityCode.load("HasAttr", "Builtins.c")),
+    BuiltinFunction('hash',       "O",    "h",     "PyObject_Hash"),
+    #('hex',       "",     "",      ""),
+    #('id',        "",     "",      ""),
+    #('input',     "",     "",      ""),
+    BuiltinFunction('intern',     "O",    "O",     "__Pyx_Intern",
+                    utility_code = UtilityCode.load("Intern", "Builtins.c")),
+    BuiltinFunction('isinstance', "OO",   "b",     "PyObject_IsInstance"),
+    BuiltinFunction('issubclass', "OO",   "b",     "PyObject_IsSubclass"),
+    BuiltinFunction('iter',       "OO",   "O",     "PyCallIter_New"),
+    BuiltinFunction('iter',       "O",    "O",     "PyObject_GetIter"),
+    BuiltinFunction('len',        "O",    "z",     "PyObject_Length"),
+    BuiltinFunction('locals',     "",     "O",     "__pyx_locals"),
+    #('map',       "",     "",      ""),
+    #('max',       "",     "",      ""),
+    #('min',       "",     "",      ""),
+    BuiltinFunction('next',       "O",    "O",     "__Pyx_PyIter_Next",
+                    utility_code = iter_next_utility_code),   # not available in Py2 => implemented here
+    BuiltinFunction('next',      "OO",    "O",     "__Pyx_PyIter_Next2",
+                    utility_code = iter_next_utility_code),  # not available in Py2 => implemented here
+    #('oct',       "",     "",      ""),
+    #('open',       "ss",   "O",     "PyFile_FromString"),   # not in Py3
+] + [
+    BuiltinFunction('ord',        None,    None,   "__Pyx_long_cast",
+                    func_type=PyrexTypes.CFuncType(
+                        PyrexTypes.c_long_type, [PyrexTypes.CFuncTypeArg("c", c_type, None)],
+                        is_strict_signature=True))
+    for c_type in [PyrexTypes.c_py_ucs4_type, PyrexTypes.c_py_unicode_type]
+] + [
+    BuiltinFunction('ord',        None,    None,   "__Pyx_uchar_cast",
+                    func_type=PyrexTypes.CFuncType(
+                        PyrexTypes.c_uchar_type, [PyrexTypes.CFuncTypeArg("c", c_type, None)],
+                        is_strict_signature=True))
+    for c_type in [PyrexTypes.c_char_type, PyrexTypes.c_schar_type, PyrexTypes.c_uchar_type]
+] + [
+    BuiltinFunction('ord',        None,    None,   "__Pyx_PyObject_Ord",
+                    utility_code=UtilityCode.load_cached("object_ord", "Builtins.c"),
+                    func_type=PyrexTypes.CFuncType(
+                        PyrexTypes.c_long_type, [
+                            PyrexTypes.CFuncTypeArg("c", PyrexTypes.py_object_type, None)
+                        ],
+                        exception_value="(long)(Py_UCS4)-1")),
+    BuiltinFunction('pow',        "OOO",  "O",     "PyNumber_Power"),
+    BuiltinFunction('pow',        "OO",   "O",     "__Pyx_PyNumber_Power2",
+                    utility_code = UtilityCode.load("pow2", "Builtins.c")),
+    #('range',     "",     "",      ""),
+    #('raw_input', "",     "",      ""),
+    #('reduce',    "",     "",      ""),
+    BuiltinFunction('reload',     "O",    "O",     "PyImport_ReloadModule"),
+    BuiltinFunction('repr',       "O",    "O",     "PyObject_Repr"),  # , builtin_return_type='str'),  # add in Cython 3.1
+    #('round',     "",     "",      ""),
+    BuiltinFunction('setattr',    "OOO",  "r",     "PyObject_SetAttr"),
+    #('sum',       "",     "",      ""),
+    #('sorted',    "",     "",      ""),
+    #('type',       "O",    "O",     "PyObject_Type"),
+    #('unichr',    "",     "",      ""),
+    #('unicode',   "",     "",      ""),
+    #('vars',      "",     "",      ""),
+    #('zip',       "",     "",      ""),
+    #  Can't do these easily until we have builtin type entries.
+    #('typecheck',  "OO",   "i",     "PyObject_TypeCheck", False),
+    #('issubtype',  "OO",   "i",     "PyType_IsSubtype",   False),
+
+    # Put in namespace append optimization.
+    BuiltinFunction('__Pyx_PyObject_Append', "OO",  "O",     "__Pyx_PyObject_Append"),
+
+    # This is conditionally looked up based on a compiler directive.
+    BuiltinFunction('__Pyx_Globals',    "",     "O",     "__Pyx_Globals",
+                    utility_code=globals_utility_code),
+]
+
+
+# Builtin types
+#  bool
+#  buffer
+#  classmethod
+#  dict
+#  enumerate
+#  file
+#  float
+#  int
+#  list
+#  long
+#  object
+#  property
+#  slice
+#  staticmethod
+#  super
+#  str
+#  tuple
+#  type
+#  xrange
+
+builtin_types_table = [
+
+    ("type",    "PyType_Type",     []),
+
+# This conflicts with the C++ bool type, and unfortunately
+# C++ is too liberal about PyObject* <-> bool conversions,
+# resulting in unintuitive runtime behavior and segfaults.
+#    ("bool",    "PyBool_Type",     []),
+
+    ("int",     "PyInt_Type",      []),
+    ("long",    "PyLong_Type",     []),
+    ("float",   "PyFloat_Type",    []),
+
+    ("complex", "PyComplex_Type",  [BuiltinAttribute('cval', field_type_name = 'Py_complex'),
+                                    BuiltinAttribute('real', 'cval.real', field_type = PyrexTypes.c_double_type),
+                                    BuiltinAttribute('imag', 'cval.imag', field_type = PyrexTypes.c_double_type),
+                                    ]),
+
+    ("basestring", "PyBaseString_Type", [
+                                    BuiltinMethod("join",  "TO",   "T", "__Pyx_PyBaseString_Join",
+                                                  utility_code=UtilityCode.load("StringJoin", "StringTools.c")),
+                                    ]),
+    ("bytearray", "PyByteArray_Type", [
+                                    ]),
+    ("bytes",   "PyBytes_Type",    [BuiltinMethod("join",  "TO",   "O", "__Pyx_PyBytes_Join",
+                                                  utility_code=UtilityCode.load("StringJoin", "StringTools.c")),
+                                    ]),
+    ("str",     "PyString_Type",   [BuiltinMethod("join",  "TO",   "O", "__Pyx_PyString_Join",
+                                                  builtin_return_type='basestring',
+                                                  utility_code=UtilityCode.load("StringJoin", "StringTools.c")),
+                                    ]),
+    ("unicode", "PyUnicode_Type",  [BuiltinMethod("__contains__",  "TO",   "b", "PyUnicode_Contains"),
+                                    BuiltinMethod("join",  "TO",   "T", "PyUnicode_Join"),
+                                    ]),
+
+    ("tuple",   "PyTuple_Type",    []),
+
+    ("list",    "PyList_Type",     [BuiltinMethod("insert",  "TzO",  "r", "PyList_Insert"),
+                                    BuiltinMethod("reverse", "T",    "r", "PyList_Reverse"),
+                                    BuiltinMethod("append",  "TO",   "r", "__Pyx_PyList_Append",
+                                                  utility_code=UtilityCode.load("ListAppend", "Optimize.c")),
+                                    BuiltinMethod("extend",  "TO",   "r", "__Pyx_PyList_Extend",
+                                                  utility_code=UtilityCode.load("ListExtend", "Optimize.c")),
+                                    ]),
+
+    ("dict",    "PyDict_Type",     [BuiltinMethod("__contains__",  "TO",   "b", "PyDict_Contains"),
+                                    BuiltinMethod("has_key",       "TO",   "b", "PyDict_Contains"),
+                                    BuiltinMethod("items",  "T",   "O", "__Pyx_PyDict_Items",
+                                                  utility_code=UtilityCode.load("py_dict_items", "Builtins.c")),
+                                    BuiltinMethod("keys",   "T",   "O", "__Pyx_PyDict_Keys",
+                                                  utility_code=UtilityCode.load("py_dict_keys", "Builtins.c")),
+                                    BuiltinMethod("values", "T",   "O", "__Pyx_PyDict_Values",
+                                                  utility_code=UtilityCode.load("py_dict_values", "Builtins.c")),
+                                    BuiltinMethod("iteritems",  "T",   "O", "__Pyx_PyDict_IterItems",
+                                                  utility_code=UtilityCode.load("py_dict_iteritems", "Builtins.c")),
+                                    BuiltinMethod("iterkeys",   "T",   "O", "__Pyx_PyDict_IterKeys",
+                                                  utility_code=UtilityCode.load("py_dict_iterkeys", "Builtins.c")),
+                                    BuiltinMethod("itervalues", "T",   "O", "__Pyx_PyDict_IterValues",
+                                                  utility_code=UtilityCode.load("py_dict_itervalues", "Builtins.c")),
+                                    BuiltinMethod("viewitems",  "T",   "O", "__Pyx_PyDict_ViewItems",
+                                                  utility_code=UtilityCode.load("py_dict_viewitems", "Builtins.c")),
+                                    BuiltinMethod("viewkeys",   "T",   "O", "__Pyx_PyDict_ViewKeys",
+                                                  utility_code=UtilityCode.load("py_dict_viewkeys", "Builtins.c")),
+                                    BuiltinMethod("viewvalues", "T",   "O", "__Pyx_PyDict_ViewValues",
+                                                  utility_code=UtilityCode.load("py_dict_viewvalues", "Builtins.c")),
+                                    BuiltinMethod("clear",  "T",   "r", "__Pyx_PyDict_Clear",
+                                                  utility_code=UtilityCode.load("py_dict_clear", "Optimize.c")),
+                                    BuiltinMethod("copy",   "T",   "T", "PyDict_Copy")]),
+
+    ("slice",   "PySlice_Type",    [BuiltinAttribute('start'),
+                                    BuiltinAttribute('stop'),
+                                    BuiltinAttribute('step'),
+                                    ]),
+#    ("file",    "PyFile_Type",     []),  # not in Py3
+
+    ("set",       "PySet_Type",    [BuiltinMethod("clear",   "T",  "r", "PySet_Clear"),
+                                    # discard() and remove() have a special treatment for unhashable values
+                                    BuiltinMethod("discard", "TO", "r", "__Pyx_PySet_Discard",
+                                                  utility_code=UtilityCode.load("py_set_discard", "Optimize.c")),
+                                    BuiltinMethod("remove",  "TO", "r", "__Pyx_PySet_Remove",
+                                                  utility_code=UtilityCode.load("py_set_remove", "Optimize.c")),
+                                    # update is actually variadic (see Github issue #1645)
+#                                    BuiltinMethod("update",     "TO", "r", "__Pyx_PySet_Update",
+#                                                  utility_code=UtilityCode.load_cached("PySet_Update", "Builtins.c")),
+                                    BuiltinMethod("add",     "TO", "r", "PySet_Add"),
+                                    BuiltinMethod("pop",     "T",  "O", "PySet_Pop")]),
+    ("frozenset", "PyFrozenSet_Type", []),
+    ("Exception", "((PyTypeObject*)PyExc_Exception)[0]", []),
+    ("StopAsyncIteration", "((PyTypeObject*)__Pyx_PyExc_StopAsyncIteration)[0]", []),
+]
+
+
+types_that_construct_their_instance = set([
+    # some builtin types do not always return an instance of
+    # themselves - these do:
+    'type', 'bool', 'long', 'float', 'complex',
+    'bytes', 'unicode', 'bytearray',
+    'tuple', 'list', 'dict', 'set', 'frozenset'
+    # 'str',             # only in Py3.x
+    # 'file',            # only in Py2.x
+])
+
+
+builtin_structs_table = [
+    ('Py_buffer', 'Py_buffer',
+     [("buf",        PyrexTypes.c_void_ptr_type),
+      ("obj",        PyrexTypes.py_object_type),
+      ("len",        PyrexTypes.c_py_ssize_t_type),
+      ("itemsize",   PyrexTypes.c_py_ssize_t_type),
+      ("readonly",   PyrexTypes.c_bint_type),
+      ("ndim",       PyrexTypes.c_int_type),
+      ("format",     PyrexTypes.c_char_ptr_type),
+      ("shape",      PyrexTypes.c_py_ssize_t_ptr_type),
+      ("strides",    PyrexTypes.c_py_ssize_t_ptr_type),
+      ("suboffsets", PyrexTypes.c_py_ssize_t_ptr_type),
+      ("smalltable", PyrexTypes.CArrayType(PyrexTypes.c_py_ssize_t_type, 2)),
+      ("internal",   PyrexTypes.c_void_ptr_type),
+      ]),
+    ('Py_complex', 'Py_complex',
+     [('real', PyrexTypes.c_double_type),
+      ('imag', PyrexTypes.c_double_type),
+      ])
+]
+
+# set up builtin scope
+
+builtin_scope = BuiltinScope()
+
+def init_builtin_funcs():
+    for bf in builtin_function_table:
+        bf.declare_in_scope(builtin_scope)
+
+builtin_types = {}
+
+def init_builtin_types():
+    global builtin_types
+    for name, cname, methods in builtin_types_table:
+        utility = builtin_utility_code.get(name)
+        if name == 'frozenset':
+            objstruct_cname = 'PySetObject'
+        elif name == 'bytearray':
+            objstruct_cname = 'PyByteArrayObject'
+        elif name == 'bool':
+            objstruct_cname = None
+        elif name == 'Exception':
+            objstruct_cname = "PyBaseExceptionObject"
+        elif name == 'StopAsyncIteration':
+            objstruct_cname = "PyBaseExceptionObject"
+        else:
+            objstruct_cname = 'Py%sObject' % name.capitalize()
+        the_type = builtin_scope.declare_builtin_type(name, cname, utility, objstruct_cname)
+        builtin_types[name] = the_type
+        for method in methods:
+            method.declare_in_type(the_type)
+
+def init_builtin_structs():
+    for name, cname, attribute_types in builtin_structs_table:
+        scope = StructOrUnionScope(name)
+        for attribute_name, attribute_type in attribute_types:
+            scope.declare_var(attribute_name, attribute_type, None,
+                              attribute_name, allow_pyobject=True)
+        builtin_scope.declare_struct_or_union(
+            name, "struct", scope, 1, None, cname = cname)
+
+
+def init_builtins():
+    init_builtin_structs()
+    init_builtin_types()
+    init_builtin_funcs()
+
+    builtin_scope.declare_var(
+        '__debug__', PyrexTypes.c_const_type(PyrexTypes.c_bint_type),
+        pos=None, cname='(!Py_OptimizeFlag)', is_cdef=True)
+
+    global list_type, tuple_type, dict_type, set_type, frozenset_type
+    global bytes_type, str_type, unicode_type, basestring_type, slice_type
+    global float_type, bool_type, type_type, complex_type, bytearray_type
+    type_type  = builtin_scope.lookup('type').type
+    list_type  = builtin_scope.lookup('list').type
+    tuple_type = builtin_scope.lookup('tuple').type
+    dict_type  = builtin_scope.lookup('dict').type
+    set_type   = builtin_scope.lookup('set').type
+    frozenset_type = builtin_scope.lookup('frozenset').type
+    slice_type   = builtin_scope.lookup('slice').type
+    bytes_type = builtin_scope.lookup('bytes').type
+    str_type   = builtin_scope.lookup('str').type
+    unicode_type = builtin_scope.lookup('unicode').type
+    basestring_type = builtin_scope.lookup('basestring').type
+    bytearray_type = builtin_scope.lookup('bytearray').type
+    float_type = builtin_scope.lookup('float').type
+    bool_type  = builtin_scope.lookup('bool').type
+    complex_type  = builtin_scope.lookup('complex').type
+
+
+init_builtins()

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/CmdLine.py

@@ -0,0 +1,240 @@
+#
+#   Cython - Command Line Parsing
+#
+
+from __future__ import absolute_import
+
+import os
+import sys
+from . import Options
+
+usage = """\
+Cython (http://cython.org) is a compiler for code written in the
+Cython language.  Cython is based on Pyrex by Greg Ewing.
+
+Usage: cython [options] sourcefile.{pyx,py} ...
+
+Options:
+  -V, --version                  Display version number of cython compiler
+  -l, --create-listing           Write error messages to a listing file
+  -I, --include-dir <directory>  Search for include files in named directory
+                                 (multiple include directories are allowed).
+  -o, --output-file <filename>   Specify name of generated C file
+  -t, --timestamps               Only compile newer source files
+  -f, --force                    Compile all source files (overrides implied -t)
+  -v, --verbose                  Be verbose, print file names on multiple compilation
+  -p, --embed-positions          If specified, the positions in Cython files of each
+                                 function definition is embedded in its docstring.
+  --cleanup <level>              Release interned objects on python exit, for memory debugging.
+                                 Level indicates aggressiveness, default 0 releases nothing.
+  -w, --working <directory>      Sets the working directory for Cython (the directory modules
+                                 are searched from)
+  --gdb                          Output debug information for cygdb
+  --gdb-outdir <directory>       Specify gdb debug information output directory. Implies --gdb.
+
+  -D, --no-docstrings            Strip docstrings from the compiled module.
+  -a, --annotate                 Produce a colorized HTML version of the source.
+  --annotate-coverage <cov.xml>  Annotate and include coverage information from cov.xml.
+  --line-directives              Produce #line directives pointing to the .pyx source
+  --cplus                        Output a C++ rather than C file.
+  --embed[=<method_name>]        Generate a main() function that embeds the Python interpreter.
+  -2                             Compile based on Python-2 syntax and code semantics.
+  -3                             Compile based on Python-3 syntax and code semantics.
+  --3str                         Compile based on Python-3 syntax and code semantics without
+                                 assuming unicode by default for string literals under Python 2.
+  --lenient                      Change some compile time errors to runtime errors to
+                                 improve Python compatibility
+  --capi-reexport-cincludes      Add cincluded headers to any auto-generated header files.
+  --fast-fail                    Abort the compilation on the first error
+  --warning-errors, -Werror      Make all warnings into errors
+  --warning-extra, -Wextra       Enable extra warnings
+  -X, --directive <name>=<value>[,<name=value,...] Overrides a compiler directive
+  -E, --compile-time-env name=value[,<name=value,...] Provides compile time env like DEF would do.
+  --module-name                  Fully qualified module name. If not given, it is deduced from the
+                                 import path if source file is in a package, or equals the
+                                 filename otherwise.
+  -M, --depfile                  Produce depfiles for the sources
+"""
+
+
+# The following experimental options are supported only on MacOSX:
+#  -C, --compile    Compile generated .c file to .o file
+#  --link           Link .o file to produce extension module (implies -C)
+#  -+, --cplus      Use C++ compiler for compiling and linking
+#  Additional .o files to link may be supplied when using -X."""
+
+def bad_usage():
+    sys.stderr.write(usage)
+    sys.exit(1)
+
+def parse_command_line(args):
+    from .Main import CompilationOptions, default_options
+
+    pending_arg = []
+
+    def pop_arg():
+        if not args or pending_arg:
+            bad_usage()
+        if '=' in args[0] and args[0].startswith('--'):  # allow "--long-option=xyz"
+            name, value = args.pop(0).split('=', 1)
+            pending_arg.append(value)
+            return name
+        return args.pop(0)
+
+    def pop_value(default=None):
+        if pending_arg:
+            return pending_arg.pop()
+        elif default is not None:
+            return default
+        elif not args:
+            bad_usage()
+        return args.pop(0)
+
+    def get_param(option):
+        tail = option[2:]
+        if tail:
+            return tail
+        else:
+            return pop_arg()
+
+    options = CompilationOptions(default_options)
+    sources = []
+    while args:
+        if args[0].startswith("-"):
+            option = pop_arg()
+            if option in ("-V", "--version"):
+                options.show_version = 1
+            elif option in ("-l", "--create-listing"):
+                options.use_listing_file = 1
+            elif option in ("-+", "--cplus"):
+                options.cplus = 1
+            elif option == "--embed":
+                Options.embed = pop_value("main")
+            elif option.startswith("-I"):
+                options.include_path.append(get_param(option))
+            elif option == "--include-dir":
+                options.include_path.append(pop_value())
+            elif option in ("-w", "--working"):
+                options.working_path = pop_value()
+            elif option in ("-o", "--output-file"):
+                options.output_file = pop_value()
+            elif option in ("-t", "--timestamps"):
+                options.timestamps = 1
+            elif option in ("-f", "--force"):
+                options.timestamps = 0
+            elif option in ("-v", "--verbose"):
+                options.verbose += 1
+            elif option in ("-p", "--embed-positions"):
+                Options.embed_pos_in_docstring = 1
+            elif option in ("-z", "--pre-import"):
+                Options.pre_import = pop_value()
+            elif option == "--cleanup":
+                Options.generate_cleanup_code = int(pop_value())
+            elif option in ("-D", "--no-docstrings"):
+                Options.docstrings = False
+            elif option in ("-a", "--annotate"):
+                Options.annotate = True
+            elif option == "--annotate-coverage":
+                Options.annotate = True
+                Options.annotate_coverage_xml = pop_value()
+            elif option == "--convert-range":
+                Options.convert_range = True
+            elif option == "--line-directives":
+                options.emit_linenums = True
+            elif option == "--no-c-in-traceback":
+                options.c_line_in_traceback = False
+            elif option == "--gdb":
+                options.gdb_debug = True
+                options.output_dir = os.curdir
+            elif option == "--gdb-outdir":
+                options.gdb_debug = True
+                options.output_dir = pop_value()
+            elif option == "--lenient":
+                Options.error_on_unknown_names = False
+                Options.error_on_uninitialized = False
+            elif option == '-2':
+                options.language_level = 2
+            elif option == '-3':
+                options.language_level = 3
+            elif option == '--3str':
+                options.language_level = '3str'
+            elif option == "--capi-reexport-cincludes":
+                options.capi_reexport_cincludes = True
+            elif option == "--fast-fail":
+                Options.fast_fail = True
+            elif option == "--cimport-from-pyx":
+                Options.cimport_from_pyx = True
+            elif option in ('-Werror', '--warning-errors'):
+                Options.warning_errors = True
+            elif option in ('-Wextra', '--warning-extra'):
+                options.compiler_directives.update(Options.extra_warnings)
+            elif option == "--old-style-globals":
+                Options.old_style_globals = True
+            elif option == "--directive" or option.startswith('-X'):
+                if option.startswith('-X') and option[2:].strip():
+                    x_args = option[2:]
+                else:
+                    x_args = pop_value()
+                try:
+                    options.compiler_directives = Options.parse_directive_list(
+                        x_args, relaxed_bool=True,
+                        current_settings=options.compiler_directives)
+                except ValueError as e:
+                    sys.stderr.write("Error in compiler directive: %s\n" % e.args[0])
+                    sys.exit(1)
+            elif option == "--compile-time-env" or option.startswith('-E'):
+                if option.startswith('-E') and option[2:].strip():
+                    x_args = option[2:]
+                else:
+                    x_args = pop_value()
+                try:
+                    options.compile_time_env = Options.parse_compile_time_env(
+                        x_args, current_settings=options.compile_time_env)
+                except ValueError as e:
+                    sys.stderr.write("Error in compile-time-env: %s\n" % e.args[0])
+                    sys.exit(1)
+            elif option == "--module-name":
+                options.module_name = pop_value()
+            elif option in ('-M', '--depfile'):
+                options.depfile = True
+            elif option.startswith('--debug'):
+                option = option[2:].replace('-', '_')
+                from . import DebugFlags
+                if option in dir(DebugFlags):
+                    setattr(DebugFlags, option, True)
+                else:
+                    sys.stderr.write("Unknown debug flag: %s\n" % option)
+                    bad_usage()
+            elif option in ('-h', '--help'):
+                sys.stdout.write(usage)
+                sys.exit(0)
+            else:
+                sys.stderr.write(usage)
+                sys.stderr.write("Unknown compiler flag: %s\n" % option)
+                sys.exit(1)
+        else:
+            sources.append(pop_arg())
+
+    if pending_arg:
+        bad_usage()
+
+    if options.use_listing_file and len(sources) > 1:
+        sys.stderr.write(
+            "cython: Only one source file allowed when using -o\n")
+        sys.exit(1)
+    if len(sources) == 0 and not options.show_version:
+        bad_usage()
+    if Options.embed and len(sources) > 1:
+        sys.stderr.write(
+            "cython: Only one source file allowed when using --embed\n")
+        sys.exit(1)
+    if options.module_name:
+        if options.timestamps:
+            sys.stderr.write(
+                "cython: Cannot use --module-name with --timestamps\n")
+            sys.exit(1)
+        if len(sources) > 1:
+            sys.stderr.write(
+                "cython: Only one source file allowed when using --module-name\n")
+            sys.exit(1)
+    return options, sources

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Code.pxd

@@ -0,0 +1,124 @@
+
+from __future__ import absolute_import
+
+cimport cython
+from ..StringIOTree cimport StringIOTree
+
+
+cdef class UtilityCodeBase(object):
+    cpdef format_code(self, code_string, replace_empty_lines=*)
+
+
+cdef class UtilityCode(UtilityCodeBase):
+    cdef public object name
+    cdef public object proto
+    cdef public object impl
+    cdef public object init
+    cdef public object cleanup
+    cdef public object proto_block
+    cdef public object requires
+    cdef public dict _cache
+    cdef public list specialize_list
+    cdef public object file
+
+    cpdef none_or_sub(self, s, context)
+
+
+cdef class FunctionState:
+    cdef public set names_taken
+    cdef public object owner
+    cdef public object scope
+
+    cdef public object error_label
+    cdef public size_t label_counter
+    cdef public set labels_used
+    cdef public object return_label
+    cdef public object continue_label
+    cdef public object break_label
+    cdef public list yield_labels
+
+    cdef public object return_from_error_cleanup_label # not used in __init__ ?
+
+    cdef public object exc_vars
+    cdef public object current_except
+    cdef public bint in_try_finally
+    cdef public bint can_trace
+    cdef public bint gil_owned
+
+    cdef public list temps_allocated
+    cdef public dict temps_free
+    cdef public dict temps_used_type
+    cdef public set zombie_temps
+    cdef public size_t temp_counter
+    cdef public list collect_temps_stack
+
+    cdef public object closure_temps
+    cdef public bint should_declare_error_indicator
+    cdef public bint uses_error_indicator
+
+    @cython.locals(n=size_t)
+    cpdef new_label(self, name=*)
+    cpdef tuple get_loop_labels(self)
+    cpdef set_loop_labels(self, labels)
+    cpdef tuple get_all_labels(self)
+    cpdef set_all_labels(self, labels)
+    cpdef start_collecting_temps(self)
+    cpdef stop_collecting_temps(self)
+
+    cpdef list temps_in_use(self)
+
+cdef class IntConst:
+    cdef public object cname
+    cdef public object value
+    cdef public bint is_long
+
+cdef class PyObjectConst:
+    cdef public object cname
+    cdef public object type
+
+cdef class StringConst:
+    cdef public object cname
+    cdef public object text
+    cdef public object escaped_value
+    cdef public dict py_strings
+    cdef public list py_versions
+
+    @cython.locals(intern=bint, is_str=bint, is_unicode=bint)
+    cpdef get_py_string_const(self, encoding, identifier=*, is_str=*, py3str_cstring=*)
+
+## cdef class PyStringConst:
+##     cdef public object cname
+##     cdef public object encoding
+##     cdef public bint is_str
+##     cdef public bint is_unicode
+##     cdef public bint intern
+
+#class GlobalState(object):
+
+#def funccontext_property(name):
+
+cdef class CCodeWriter(object):
+    cdef readonly StringIOTree buffer
+    cdef readonly list pyclass_stack
+    cdef readonly object globalstate
+    cdef readonly object funcstate
+    cdef object code_config
+    cdef object last_pos
+    cdef object last_marked_pos
+    cdef Py_ssize_t level
+    cdef public Py_ssize_t call_level  # debug-only, see Nodes.py
+    cdef bint bol
+
+    cpdef write(self, s)
+    cpdef put(self, code)
+    cpdef put_safe(self, code)
+    cpdef putln(self, code=*, bint safe=*)
+    @cython.final
+    cdef increase_indent(self)
+    @cython.final
+    cdef decrease_indent(self)
+
+
+cdef class PyrexCodeWriter:
+    cdef public object f
+    cdef public Py_ssize_t level

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/CodeGeneration.py

@@ -0,0 +1,35 @@
+from __future__ import absolute_import
+
+from .Visitor import VisitorTransform
+from .Nodes import StatListNode
+
+
+class ExtractPxdCode(VisitorTransform):
+    """
+    Finds nodes in a pxd file that should generate code, and
+    returns them in a StatListNode.
+
+    The result is a tuple (StatListNode, ModuleScope), i.e.
+    everything that is needed from the pxd after it is processed.
+
+    A purer approach would be to separately compile the pxd code,
+    but the result would have to be slightly more sophisticated
+    than pure strings (functions + wanted interned strings +
+    wanted utility code + wanted cached objects) so for now this
+    approach is taken.
+    """
+
+    def __call__(self, root):
+        self.funcs = []
+        self.visitchildren(root)
+        return (StatListNode(root.pos, stats=self.funcs), root.scope)
+
+    def visit_FuncDefNode(self, node):
+        self.funcs.append(node)
+        # Do not visit children, nested funcdefnodes will
+        # also be moved by this action...
+        return node
+
+    def visit_Node(self, node):
+        self.visitchildren(node)
+        return node

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/CythonScope.py

@@ -0,0 +1,164 @@
+from __future__ import absolute_import
+
+from .Symtab import ModuleScope
+from .PyrexTypes import *
+from .UtilityCode import CythonUtilityCode
+from .Errors import error
+from .Scanning import StringSourceDescriptor
+from . import MemoryView
+
+
+class CythonScope(ModuleScope):
+    is_cython_builtin = 1
+    _cythonscope_initialized = False
+
+    def __init__(self, context):
+        ModuleScope.__init__(self, u'cython', None, None)
+        self.pxd_file_loaded = True
+        self.populate_cython_scope()
+        # The Main.Context object
+        self.context = context
+
+        for fused_type in (cy_integral_type, cy_floating_type, cy_numeric_type):
+            entry = self.declare_typedef(fused_type.name,
+                                         fused_type,
+                                         None,
+                                         cname='<error>')
+            entry.in_cinclude = True
+
+    def is_cpp(self):
+        # Allow C++ utility code in C++ contexts.
+        return self.context.cpp
+
+    def lookup_type(self, name):
+        # This function should go away when types are all first-level objects.
+        type = parse_basic_type(name)
+        if type:
+            return type
+
+        return super(CythonScope, self).lookup_type(name)
+
+    def lookup(self, name):
+        entry = super(CythonScope, self).lookup(name)
+
+        if entry is None and not self._cythonscope_initialized:
+            self.load_cythonscope()
+            entry = super(CythonScope, self).lookup(name)
+
+        return entry
+
+    def find_module(self, module_name, pos):
+        error("cython.%s is not available" % module_name, pos)
+
+    def find_submodule(self, module_name):
+        entry = self.entries.get(module_name, None)
+        if not entry:
+            self.load_cythonscope()
+            entry = self.entries.get(module_name, None)
+
+        if entry and entry.as_module:
+            return entry.as_module
+        else:
+            # TODO: fix find_submodule control flow so that we're not
+            # expected to create a submodule here (to protect CythonScope's
+            # possible immutability). Hack ourselves out of the situation
+            # for now.
+            raise error((StringSourceDescriptor(u"cython", u""), 0, 0),
+                  "cython.%s is not available" % module_name)
+
+    def lookup_qualified_name(self, qname):
+        # ExprNode.as_cython_attribute generates qnames and we untangle it here...
+        name_path = qname.split(u'.')
+        scope = self
+        while len(name_path) > 1:
+            scope = scope.lookup_here(name_path[0])
+            if scope:
+                scope = scope.as_module
+            del name_path[0]
+            if scope is None:
+                return None
+        else:
+            return scope.lookup_here(name_path[0])
+
+    def populate_cython_scope(self):
+        # These are used to optimize isinstance in FinalOptimizePhase
+        type_object = self.declare_typedef(
+            'PyTypeObject',
+            base_type = c_void_type,
+            pos = None,
+            cname = 'PyTypeObject')
+        type_object.is_void = True
+        type_object_type = type_object.type
+
+        self.declare_cfunction(
+            'PyObject_TypeCheck',
+            CFuncType(c_bint_type, [CFuncTypeArg("o", py_object_type, None),
+                                    CFuncTypeArg("t", c_ptr_type(type_object_type), None)]),
+            pos = None,
+            defining = 1,
+            cname = 'PyObject_TypeCheck')
+
+    def load_cythonscope(self):
+        """
+        Creates some entries for testing purposes and entries for
+        cython.array() and for cython.view.*.
+        """
+        if self._cythonscope_initialized:
+            return
+
+        self._cythonscope_initialized = True
+        cython_testscope_utility_code.declare_in_scope(
+                                self, cython_scope=self)
+        cython_test_extclass_utility_code.declare_in_scope(
+                                    self, cython_scope=self)
+
+        #
+        # The view sub-scope
+        #
+        self.viewscope = viewscope = ModuleScope(u'view', self, None)
+        self.declare_module('view', viewscope, None).as_module = viewscope
+        viewscope.is_cython_builtin = True
+        viewscope.pxd_file_loaded = True
+
+        cythonview_testscope_utility_code.declare_in_scope(
+                                            viewscope, cython_scope=self)
+
+        view_utility_scope = MemoryView.view_utility_code.declare_in_scope(
+                                            self.viewscope, cython_scope=self,
+                                            whitelist=MemoryView.view_utility_whitelist)
+
+        # self.entries["array"] = view_utility_scope.entries.pop("array")
+
+
+def create_cython_scope(context):
+    # One could in fact probably make it a singleton,
+    # but not sure yet whether any code mutates it (which would kill reusing
+    # it across different contexts)
+    return CythonScope(context)
+
+# Load test utilities for the cython scope
+
+def load_testscope_utility(cy_util_name, **kwargs):
+    return CythonUtilityCode.load(cy_util_name, "TestCythonScope.pyx", **kwargs)
+
+
+undecorated_methods_protos = UtilityCode(proto=u"""
+    /* These methods are undecorated and have therefore no prototype */
+    static PyObject *__pyx_TestClass_cdef_method(
+            struct __pyx_TestClass_obj *self, int value);
+    static PyObject *__pyx_TestClass_cpdef_method(
+            struct __pyx_TestClass_obj *self, int value, int skip_dispatch);
+    static PyObject *__pyx_TestClass_def_method(
+            PyObject *self, PyObject *value);
+""")
+
+cython_testscope_utility_code = load_testscope_utility("TestScope")
+
+test_cython_utility_dep = load_testscope_utility("TestDep")
+
+cython_test_extclass_utility_code = \
+    load_testscope_utility("TestClass", name="TestClass",
+                           requires=[undecorated_methods_protos,
+                                     test_cython_utility_dep])
+
+cythonview_testscope_utility_code = load_testscope_utility("View.TestScope")

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/DebugFlags.py

@@ -0,0 +1,21 @@
+# Can be enabled at the command line with --debug-xxx.
+
+debug_disposal_code = 0
+debug_temp_alloc = 0
+debug_coercion = 0
+
+# Write comments into the C code that show where temporary variables
+# are allocated and released.
+debug_temp_code_comments = 0
+
+# Write a call trace of the code generation phase into the C code.
+debug_trace_code_generation = 0
+
+# Do not replace exceptions with user-friendly error messages.
+debug_no_exception_intercept = 0
+
+# Print a message each time a new stage in the pipeline is entered.
+debug_verbose_pipeline = 0
+
+# Raise an exception when an error is encountered.
+debug_exception_on_error = 0

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Errors.py

@@ -0,0 +1,265 @@
+#
+#   Errors
+#
+
+from __future__ import absolute_import
+
+try:
+    from __builtin__ import basestring as any_string_type
+except ImportError:
+    any_string_type = (bytes, str)
+
+import sys
+from contextlib import contextmanager
+
+from ..Utils import open_new_file
+from . import DebugFlags
+from . import Options
+
+
+class PyrexError(Exception):
+    pass
+
+
+class PyrexWarning(Exception):
+    pass
+
+
+def context(position):
+    source = position[0]
+    assert not (isinstance(source, any_string_type)), (
+        "Please replace filename strings with Scanning.FileSourceDescriptor instances %r" % source)
+    try:
+        F = source.get_lines()
+    except UnicodeDecodeError:
+        # file has an encoding problem
+        s = u"[unprintable code]\n"
+    else:
+        s = u''.join(F[max(0, position[1]-6):position[1]])
+        s = u'...\n%s%s^\n' % (s, u' '*(position[2]-1))
+    s = u'%s\n%s%s\n' % (u'-'*60, s, u'-'*60)
+    return s
+
+def format_position(position):
+    if position:
+        return u"%s:%d:%d: " % (position[0].get_error_description(),
+                                position[1], position[2])
+    return u''
+
+def format_error(message, position):
+    if position:
+        pos_str = format_position(position)
+        cont = context(position)
+        message = u'\nError compiling Cython file:\n%s\n%s%s' % (cont, pos_str, message or u'')
+    return message
+
+class CompileError(PyrexError):
+
+    def __init__(self, position = None, message = u""):
+        self.position = position
+        self.message_only = message
+        self.formatted_message = format_error(message, position)
+        self.reported = False
+    # Deprecated and withdrawn in 2.6:
+    #   self.message = message
+        Exception.__init__(self, self.formatted_message)
+        # Python Exception subclass pickling is broken,
+        # see http://bugs.python.org/issue1692335
+        self.args = (position, message)
+
+    def __str__(self):
+        return self.formatted_message
+
+class CompileWarning(PyrexWarning):
+
+    def __init__(self, position = None, message = ""):
+        self.position = position
+    # Deprecated and withdrawn in 2.6:
+    #   self.message = message
+        Exception.__init__(self, format_position(position) + message)
+
+class InternalError(Exception):
+    # If this is ever raised, there is a bug in the compiler.
+
+    def __init__(self, message):
+        self.message_only = message
+        Exception.__init__(self, u"Internal compiler error: %s"
+            % message)
+
+class AbortError(Exception):
+    # Throw this to stop the compilation immediately.
+
+    def __init__(self, message):
+        self.message_only = message
+        Exception.__init__(self, u"Abort error: %s" % message)
+
+class CompilerCrash(CompileError):
+    # raised when an unexpected exception occurs in a transform
+    def __init__(self, pos, context, message, cause, stacktrace=None):
+        if message:
+            message = u'\n' + message
+        else:
+            message = u'\n'
+        self.message_only = message
+        if context:
+            message = u"Compiler crash in %s%s" % (context, message)
+        if stacktrace:
+            import traceback
+            message += (
+                u'\n\nCompiler crash traceback from this point on:\n' +
+                u''.join(traceback.format_tb(stacktrace)))
+        if cause:
+            if not stacktrace:
+                message += u'\n'
+            message += u'%s: %s' % (cause.__class__.__name__, cause)
+        CompileError.__init__(self, pos, message)
+        # Python Exception subclass pickling is broken,
+        # see http://bugs.python.org/issue1692335
+        self.args = (pos, context, message, cause, stacktrace)
+
+class NoElementTreeInstalledException(PyrexError):
+    """raised when the user enabled options.gdb_debug but no ElementTree
+    implementation was found
+    """
+
+listing_file = None
+num_errors = 0
+echo_file = None
+
+def open_listing_file(path, echo_to_stderr = 1):
+    # Begin a new error listing. If path is None, no file
+    # is opened, the error counter is just reset.
+    global listing_file, num_errors, echo_file
+    if path is not None:
+        listing_file = open_new_file(path)
+    else:
+        listing_file = None
+    if echo_to_stderr:
+        echo_file = sys.stderr
+    else:
+        echo_file = None
+    num_errors = 0
+
+def close_listing_file():
+    global listing_file
+    if listing_file:
+        listing_file.close()
+        listing_file = None
+
+def report_error(err, use_stack=True):
+    if error_stack and use_stack:
+        error_stack[-1].append(err)
+    else:
+        global num_errors
+        # See Main.py for why dual reporting occurs. Quick fix for now.
+        if err.reported: return
+        err.reported = True
+        try: line = u"%s\n" % err
+        except UnicodeEncodeError:
+            # Python <= 2.5 does this for non-ASCII Unicode exceptions
+            line = format_error(getattr(err, 'message_only', "[unprintable exception message]"),
+                                getattr(err, 'position', None)) + u'\n'
+        if listing_file:
+            try: listing_file.write(line)
+            except UnicodeEncodeError:
+                listing_file.write(line.encode('ASCII', 'replace'))
+        if echo_file:
+            try: echo_file.write(line)
+            except UnicodeEncodeError:
+                echo_file.write(line.encode('ASCII', 'replace'))
+        num_errors += 1
+        if Options.fast_fail:
+            raise AbortError("fatal errors")
+
+
+def error(position, message):
+    #print("Errors.error:", repr(position), repr(message)) ###
+    if position is None:
+        raise InternalError(message)
+    err = CompileError(position, message)
+    if DebugFlags.debug_exception_on_error: raise Exception(err) # debug
+    report_error(err)
+    return err
+
+
+LEVEL = 1 # warn about all errors level 1 or higher
+
+
+def message(position, message, level=1):
+    if level < LEVEL:
+        return
+    warn = CompileWarning(position, message)
+    line = "note: %s\n" % warn
+    if listing_file:
+        listing_file.write(line)
+    if echo_file:
+        echo_file.write(line)
+    return warn
+
+
+def warning(position, message, level=0):
+    if level < LEVEL:
+        return
+    if Options.warning_errors and position:
+        return error(position, message)
+    warn = CompileWarning(position, message)
+    line = "warning: %s\n" % warn
+    if listing_file:
+        listing_file.write(line)
+    if echo_file:
+        echo_file.write(line)
+    return warn
+
+
+_warn_once_seen = {}
+def warn_once(position, message, level=0):
+    if level < LEVEL or message in _warn_once_seen:
+        return
+    warn = CompileWarning(position, message)
+    line = "warning: %s\n" % warn
+    if listing_file:
+        listing_file.write(line)
+    if echo_file:
+        echo_file.write(line)
+    _warn_once_seen[message] = True
+    return warn
+
+
+# These functions can be used to momentarily suppress errors.
+
+error_stack = []
+
+
+def hold_errors():
+    error_stack.append([])
+
+
+def release_errors(ignore=False):
+    held_errors = error_stack.pop()
+    if not ignore:
+        for err in held_errors:
+            report_error(err)
+
+
+def held_errors():
+    return error_stack[-1]
+
+
+# same as context manager:
+
+@contextmanager
+def local_errors(ignore=False):
+    errors = []
+    error_stack.append(errors)
+    try:
+        yield errors
+    finally:
+        release_errors(ignore=ignore)
+
+
+# this module needs a redesign to support parallel cythonisation, but
+# for now, the following works at least in sequential compiler runs
+
+def reset():
+    _warn_once_seen.clear()
+    del error_stack[:]

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/FlowControl.pxd

@@ -0,0 +1,111 @@
+from __future__ import absolute_import
+
+cimport cython
+
+from .Visitor cimport CythonTransform, TreeVisitor
+
+cdef class ControlBlock:
+     cdef public set children
+     cdef public set parents
+     cdef public set positions
+     cdef public list stats
+     cdef public dict gen
+     cdef public set bounded
+
+     # Big integer bitsets
+     cdef public object i_input
+     cdef public object i_output
+     cdef public object i_gen
+     cdef public object i_kill
+     cdef public object i_state
+
+     cpdef bint empty(self)
+     cpdef detach(self)
+     cpdef add_child(self, block)
+
+cdef class ExitBlock(ControlBlock):
+     cpdef bint empty(self)
+
+cdef class NameAssignment:
+    cdef public bint is_arg
+    cdef public bint is_deletion
+    cdef public object lhs
+    cdef public object rhs
+    cdef public object entry
+    cdef public object pos
+    cdef public set refs
+    cdef public object bit
+    cdef public object inferred_type
+
+cdef class AssignmentList:
+    cdef public object bit
+    cdef public object mask
+    cdef public list stats
+
+cdef class AssignmentCollector(TreeVisitor):
+    cdef list assignments
+
+@cython.final
+cdef class ControlFlow:
+     cdef public set blocks
+     cdef public set entries
+     cdef public list loops
+     cdef public list exceptions
+
+     cdef public ControlBlock entry_point
+     cdef public ExitBlock exit_point
+     cdef public ControlBlock block
+
+     cdef public dict assmts
+
+     cpdef newblock(self, ControlBlock parent=*)
+     cpdef nextblock(self, ControlBlock parent=*)
+     cpdef bint is_tracked(self, entry)
+     cpdef bint is_statically_assigned(self, entry)
+     cpdef mark_position(self, node)
+     cpdef mark_assignment(self, lhs, rhs, entry)
+     cpdef mark_argument(self, lhs, rhs, entry)
+     cpdef mark_deletion(self, node, entry)
+     cpdef mark_reference(self, node, entry)
+
+     @cython.locals(block=ControlBlock, parent=ControlBlock, unreachable=set)
+     cpdef normalize(self)
+
+     @cython.locals(bit=object, assmts=AssignmentList,
+                    block=ControlBlock)
+     cpdef initialize(self)
+
+     @cython.locals(assmts=AssignmentList, assmt=NameAssignment)
+     cpdef set map_one(self, istate, entry)
+
+     @cython.locals(block=ControlBlock, parent=ControlBlock)
+     cdef reaching_definitions(self)
+
+cdef class Uninitialized:
+     pass
+
+cdef class Unknown:
+    pass
+
+
+cdef class MessageCollection:
+    cdef set messages
+
+
+@cython.locals(dirty=bint, block=ControlBlock, parent=ControlBlock,
+               assmt=NameAssignment)
+cdef check_definitions(ControlFlow flow, dict compiler_directives)
+
+@cython.final
+cdef class ControlFlowAnalysis(CythonTransform):
+    cdef object gv_ctx
+    cdef object constant_folder
+    cdef set reductions
+    cdef list env_stack
+    cdef list stack
+    cdef object env
+    cdef ControlFlow flow
+    cdef bint in_inplace_assignment
+
+    cpdef mark_assignment(self, lhs, rhs=*)
+    cpdef mark_position(self, node)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/FusedNode.py

@@ -0,0 +1,901 @@
+from __future__ import absolute_import
+
+import copy
+
+from . import (ExprNodes, PyrexTypes, MemoryView,
+               ParseTreeTransforms, StringEncoding, Errors)
+from .ExprNodes import CloneNode, ProxyNode, TupleNode
+from .Nodes import FuncDefNode, CFuncDefNode, StatListNode, DefNode
+from ..Utils import OrderedSet
+
+
+class FusedCFuncDefNode(StatListNode):
+    """
+    This node replaces a function with fused arguments. It deep-copies the
+    function for every permutation of fused types, and allocates a new local
+    scope for it. It keeps track of the original function in self.node, and
+    the entry of the original function in the symbol table is given the
+    'fused_cfunction' attribute which points back to us.
+    Then when a function lookup occurs (to e.g. call it), the call can be
+    dispatched to the right function.
+
+    node    FuncDefNode    the original function
+    nodes   [FuncDefNode]  list of copies of node with different specific types
+    py_func DefNode        the fused python function subscriptable from
+                           Python space
+    __signatures__         A DictNode mapping signature specialization strings
+                           to PyCFunction nodes
+    resulting_fused_function  PyCFunction for the fused DefNode that delegates
+                              to specializations
+    fused_func_assignment   Assignment of the fused function to the function name
+    defaults_tuple          TupleNode of defaults (letting PyCFunctionNode build
+                            defaults would result in many different tuples)
+    specialized_pycfuncs    List of synthesized pycfunction nodes for the
+                            specializations
+    code_object             CodeObjectNode shared by all specializations and the
+                            fused function
+
+    fused_compound_types    All fused (compound) types (e.g. floating[:])
+    """
+
+    __signatures__ = None
+    resulting_fused_function = None
+    fused_func_assignment = None
+    defaults_tuple = None
+    decorators = None
+
+    child_attrs = StatListNode.child_attrs + [
+        '__signatures__', 'resulting_fused_function', 'fused_func_assignment']
+
+    def __init__(self, node, env):
+        super(FusedCFuncDefNode, self).__init__(node.pos)
+
+        self.nodes = []
+        self.node = node
+
+        is_def = isinstance(self.node, DefNode)
+        if is_def:
+            # self.node.decorators = []
+            self.copy_def(env)
+        else:
+            self.copy_cdef(env)
+
+        # Perform some sanity checks. If anything fails, it's a bug
+        for n in self.nodes:
+            assert not n.entry.type.is_fused
+            assert not n.local_scope.return_type.is_fused
+            if node.return_type.is_fused:
+                assert not n.return_type.is_fused
+
+            if not is_def and n.cfunc_declarator.optional_arg_count:
+                assert n.type.op_arg_struct
+
+        node.entry.fused_cfunction = self
+        # Copy the nodes as AnalyseDeclarationsTransform will prepend
+        # self.py_func to self.stats, as we only want specialized
+        # CFuncDefNodes in self.nodes
+        self.stats = self.nodes[:]
+
+    def copy_def(self, env):
+        """
+        Create a copy of the original def or lambda function for specialized
+        versions.
+        """
+        fused_compound_types = PyrexTypes.unique(
+            [arg.type for arg in self.node.args if arg.type.is_fused])
+        fused_types = self._get_fused_base_types(fused_compound_types)
+        permutations = PyrexTypes.get_all_specialized_permutations(fused_types)
+
+        self.fused_compound_types = fused_compound_types
+
+        if self.node.entry in env.pyfunc_entries:
+            env.pyfunc_entries.remove(self.node.entry)
+
+        for cname, fused_to_specific in permutations:
+            copied_node = copy.deepcopy(self.node)
+            # keep signature object identity for special casing in DefNode.analyse_declarations()
+            copied_node.entry.signature = self.node.entry.signature
+
+            self._specialize_function_args(copied_node.args, fused_to_specific)
+            copied_node.return_type = self.node.return_type.specialize(
+                                                    fused_to_specific)
+
+            copied_node.analyse_declarations(env)
+            # copied_node.is_staticmethod = self.node.is_staticmethod
+            # copied_node.is_classmethod = self.node.is_classmethod
+            self.create_new_local_scope(copied_node, env, fused_to_specific)
+            self.specialize_copied_def(copied_node, cname, self.node.entry,
+                                       fused_to_specific, fused_compound_types)
+
+            PyrexTypes.specialize_entry(copied_node.entry, cname)
+            copied_node.entry.used = True
+            env.entries[copied_node.entry.name] = copied_node.entry
+
+            if not self.replace_fused_typechecks(copied_node):
+                break
+
+        self.orig_py_func = self.node
+        self.py_func = self.make_fused_cpdef(self.node, env, is_def=True)
+
+    def copy_cdef(self, env):
+        """
+        Create a copy of the original c(p)def function for all specialized
+        versions.
+        """
+        permutations = self.node.type.get_all_specialized_permutations()
+        # print 'Node %s has %d specializations:' % (self.node.entry.name,
+        #                                            len(permutations))
+        # import pprint; pprint.pprint([d for cname, d in permutations])
+
+        # Prevent copying of the python function
+        self.orig_py_func = orig_py_func = self.node.py_func
+        self.node.py_func = None
+        if orig_py_func:
+            env.pyfunc_entries.remove(orig_py_func.entry)
+
+        fused_types = self.node.type.get_fused_types()
+        self.fused_compound_types = fused_types
+
+        new_cfunc_entries = []
+        for cname, fused_to_specific in permutations:
+            copied_node = copy.deepcopy(self.node)
+
+            # Make the types in our CFuncType specific.
+            type = copied_node.type.specialize(fused_to_specific)
+            entry = copied_node.entry
+            type.specialize_entry(entry, cname)
+
+            # Reuse existing Entries (e.g. from .pxd files).
+            for i, orig_entry in enumerate(env.cfunc_entries):
+                if entry.cname == orig_entry.cname and type.same_as_resolved_type(orig_entry.type):
+                    copied_node.entry = env.cfunc_entries[i]
+                    if not copied_node.entry.func_cname:
+                        copied_node.entry.func_cname = entry.func_cname
+                    entry = copied_node.entry
+                    type = entry.type
+                    break
+            else:
+                new_cfunc_entries.append(entry)
+
+            copied_node.type = type
+            entry.type, type.entry = type, entry
+
+            entry.used = (entry.used or
+                          self.node.entry.defined_in_pxd or
+                          env.is_c_class_scope or
+                          entry.is_cmethod)
+
+            if self.node.cfunc_declarator.optional_arg_count:
+                self.node.cfunc_declarator.declare_optional_arg_struct(
+                                           type, env, fused_cname=cname)
+
+            copied_node.return_type = type.return_type
+            self.create_new_local_scope(copied_node, env, fused_to_specific)
+
+            # Make the argument types in the CFuncDeclarator specific
+            self._specialize_function_args(copied_node.cfunc_declarator.args,
+                                           fused_to_specific)
+
+            # If a cpdef, declare all specialized cpdefs (this
+            # also calls analyse_declarations)
+            copied_node.declare_cpdef_wrapper(env)
+            if copied_node.py_func:
+                env.pyfunc_entries.remove(copied_node.py_func.entry)
+
+                self.specialize_copied_def(
+                        copied_node.py_func, cname, self.node.entry.as_variable,
+                        fused_to_specific, fused_types)
+
+            if not self.replace_fused_typechecks(copied_node):
+                break
+
+        # replace old entry with new entries
+        try:
+            cindex = env.cfunc_entries.index(self.node.entry)
+        except ValueError:
+            env.cfunc_entries.extend(new_cfunc_entries)
+        else:
+            env.cfunc_entries[cindex:cindex+1] = new_cfunc_entries
+
+        if orig_py_func:
+            self.py_func = self.make_fused_cpdef(orig_py_func, env,
+                                                 is_def=False)
+        else:
+            self.py_func = orig_py_func
+
+    def _get_fused_base_types(self, fused_compound_types):
+        """
+        Get a list of unique basic fused types, from a list of
+        (possibly) compound fused types.
+        """
+        base_types = []
+        seen = set()
+        for fused_type in fused_compound_types:
+            fused_type.get_fused_types(result=base_types, seen=seen)
+        return base_types
+
+    def _specialize_function_args(self, args, fused_to_specific):
+        for arg in args:
+            if arg.type.is_fused:
+                arg.type = arg.type.specialize(fused_to_specific)
+                if arg.type.is_memoryviewslice:
+                    arg.type.validate_memslice_dtype(arg.pos)
+
+    def create_new_local_scope(self, node, env, f2s):
+        """
+        Create a new local scope for the copied node and append it to
+        self.nodes. A new local scope is needed because the arguments with the
+        fused types are already in the local scope, and we need the specialized
+        entries created after analyse_declarations on each specialized version
+        of the (CFunc)DefNode.
+        f2s is a dict mapping each fused type to its specialized version
+        """
+        node.create_local_scope(env)
+        node.local_scope.fused_to_specific = f2s
+
+        # This is copied from the original function, set it to false to
+        # stop recursion
+        node.has_fused_arguments = False
+        self.nodes.append(node)
+
+    def specialize_copied_def(self, node, cname, py_entry, f2s, fused_compound_types):
+        """Specialize the copy of a DefNode given the copied node,
+        the specialization cname and the original DefNode entry"""
+        fused_types = self._get_fused_base_types(fused_compound_types)
+        type_strings = [
+            PyrexTypes.specialization_signature_string(fused_type, f2s)
+                for fused_type in fused_types
+        ]
+
+        node.specialized_signature_string = '|'.join(type_strings)
+
+        node.entry.pymethdef_cname = PyrexTypes.get_fused_cname(
+                                        cname, node.entry.pymethdef_cname)
+        node.entry.doc = py_entry.doc
+        node.entry.doc_cname = py_entry.doc_cname
+
+    def replace_fused_typechecks(self, copied_node):
+        """
+        Branch-prune fused type checks like
+
+            if fused_t is int:
+                ...
+
+        Returns whether an error was issued and whether we should stop in
+        in order to prevent a flood of errors.
+        """
+        num_errors = Errors.num_errors
+        transform = ParseTreeTransforms.ReplaceFusedTypeChecks(
+                                       copied_node.local_scope)
+        transform(copied_node)
+
+        if Errors.num_errors > num_errors:
+            return False
+
+        return True
+
+    def _fused_instance_checks(self, normal_types, pyx_code, env):
+        """
+        Generate Cython code for instance checks, matching an object to
+        specialized types.
+        """
+        for specialized_type in normal_types:
+            # all_numeric = all_numeric and specialized_type.is_numeric
+            pyx_code.context.update(
+                py_type_name=specialized_type.py_type_name(),
+                specialized_type_name=specialized_type.specialization_string,
+            )
+            pyx_code.put_chunk(
+                u"""
+                    if isinstance(arg, {{py_type_name}}):
+                        dest_sig[{{dest_sig_idx}}] = '{{specialized_type_name}}'; break
+                """)
+
+    def _dtype_name(self, dtype):
+        if dtype.is_typedef:
+            return '___pyx_%s' % dtype
+        return str(dtype).replace(' ', '_')
+
+    def _dtype_type(self, dtype):
+        if dtype.is_typedef:
+            return self._dtype_name(dtype)
+        return str(dtype)
+
+    def _sizeof_dtype(self, dtype):
+        if dtype.is_pyobject:
+            return 'sizeof(void *)'
+        else:
+            return "sizeof(%s)" % self._dtype_type(dtype)
+
+    def _buffer_check_numpy_dtype_setup_cases(self, pyx_code):
+        "Setup some common cases to match dtypes against specializations"
+        if pyx_code.indenter("if kind in b'iu':"):
+            pyx_code.putln("pass")
+            pyx_code.named_insertion_point("dtype_int")
+            pyx_code.dedent()
+
+        if pyx_code.indenter("elif kind == b'f':"):
+            pyx_code.putln("pass")
+            pyx_code.named_insertion_point("dtype_float")
+            pyx_code.dedent()
+
+        if pyx_code.indenter("elif kind == b'c':"):
+            pyx_code.putln("pass")
+            pyx_code.named_insertion_point("dtype_complex")
+            pyx_code.dedent()
+
+        if pyx_code.indenter("elif kind == b'O':"):
+            pyx_code.putln("pass")
+            pyx_code.named_insertion_point("dtype_object")
+            pyx_code.dedent()
+
+    match = "dest_sig[{{dest_sig_idx}}] = '{{specialized_type_name}}'"
+    no_match = "dest_sig[{{dest_sig_idx}}] = None"
+    def _buffer_check_numpy_dtype(self, pyx_code, specialized_buffer_types, pythran_types):
+        """
+        Match a numpy dtype object to the individual specializations.
+        """
+        self._buffer_check_numpy_dtype_setup_cases(pyx_code)
+
+        for specialized_type in pythran_types+specialized_buffer_types:
+            final_type = specialized_type
+            if specialized_type.is_pythran_expr:
+                specialized_type = specialized_type.org_buffer
+            dtype = specialized_type.dtype
+            pyx_code.context.update(
+                itemsize_match=self._sizeof_dtype(dtype) + " == itemsize",
+                signed_match="not (%s_is_signed ^ dtype_signed)" % self._dtype_name(dtype),
+                dtype=dtype,
+                specialized_type_name=final_type.specialization_string)
+
+            dtypes = [
+                (dtype.is_int, pyx_code.dtype_int),
+                (dtype.is_float, pyx_code.dtype_float),
+                (dtype.is_complex, pyx_code.dtype_complex)
+            ]
+
+            for dtype_category, codewriter in dtypes:
+                if dtype_category:
+                    cond = '{{itemsize_match}} and (<Py_ssize_t>arg.ndim) == %d' % (
+                                                    specialized_type.ndim,)
+                    if dtype.is_int:
+                        cond += ' and {{signed_match}}'
+
+                    if final_type.is_pythran_expr:
+                        cond += ' and arg_is_pythran_compatible'
+
+                    if codewriter.indenter("if %s:" % cond):
+                        #codewriter.putln("print 'buffer match found based on numpy dtype'")
+                        codewriter.putln(self.match)
+                        codewriter.putln("break")
+                        codewriter.dedent()
+
+    def _buffer_parse_format_string_check(self, pyx_code, decl_code,
+                                          specialized_type, env):
+        """
+        For each specialized type, try to coerce the object to a memoryview
+        slice of that type. This means obtaining a buffer and parsing the
+        format string.
+        TODO: separate buffer acquisition from format parsing
+        """
+        dtype = specialized_type.dtype
+        if specialized_type.is_buffer:
+            axes = [('direct', 'strided')] * specialized_type.ndim
+        else:
+            axes = specialized_type.axes
+
+        memslice_type = PyrexTypes.MemoryViewSliceType(dtype, axes)
+        memslice_type.create_from_py_utility_code(env)
+        pyx_code.context.update(
+            coerce_from_py_func=memslice_type.from_py_function,
+            dtype=dtype)
+        decl_code.putln(
+            "{{memviewslice_cname}} {{coerce_from_py_func}}(object, int)")
+
+        pyx_code.context.update(
+            specialized_type_name=specialized_type.specialization_string,
+            sizeof_dtype=self._sizeof_dtype(dtype))
+
+        pyx_code.put_chunk(
+            u"""
+                # try {{dtype}}
+                if itemsize == -1 or itemsize == {{sizeof_dtype}}:
+                    memslice = {{coerce_from_py_func}}(arg, 0)
+                    if memslice.memview:
+                        __PYX_XDEC_MEMVIEW(&memslice, 1)
+                        # print 'found a match for the buffer through format parsing'
+                        %s
+                        break
+                    else:
+                        __pyx_PyErr_Clear()
+            """ % self.match)
+
+    def _buffer_checks(self, buffer_types, pythran_types, pyx_code, decl_code, env):
+        """
+        Generate Cython code to match objects to buffer specializations.
+        First try to get a numpy dtype object and match it against the individual
+        specializations. If that fails, try naively to coerce the object
+        to each specialization, which obtains the buffer each time and tries
+        to match the format string.
+        """
+        # The first thing to find a match in this loop breaks out of the loop
+        pyx_code.put_chunk(
+            u"""
+                """ + (u"arg_is_pythran_compatible = False" if pythran_types else u"") + u"""
+                if ndarray is not None:
+                    if isinstance(arg, ndarray):
+                        dtype = arg.dtype
+                        """ + (u"arg_is_pythran_compatible = True" if pythran_types else u"") + u"""
+                    elif __pyx_memoryview_check(arg):
+                        arg_base = arg.base
+                        if isinstance(arg_base, ndarray):
+                            dtype = arg_base.dtype
+                        else:
+                            dtype = None
+                    else:
+                        dtype = None
+
+                    itemsize = -1
+                    if dtype is not None:
+                        itemsize = dtype.itemsize
+                        kind = ord(dtype.kind)
+                        dtype_signed = kind == 'i'
+            """)
+        pyx_code.indent(2)
+        if pythran_types:
+            pyx_code.put_chunk(
+                u"""
+                        # Pythran only supports the endianness of the current compiler
+                        byteorder = dtype.byteorder
+                        if byteorder == "<" and not __Pyx_Is_Little_Endian():
+                            arg_is_pythran_compatible = False
+                        elif byteorder == ">" and __Pyx_Is_Little_Endian():
+                            arg_is_pythran_compatible = False
+                        if arg_is_pythran_compatible:
+                            cur_stride = itemsize
+                            shape = arg.shape
+                            strides = arg.strides
+                            for i in range(arg.ndim-1, -1, -1):
+                                if (<Py_ssize_t>strides[i]) != cur_stride:
+                                    arg_is_pythran_compatible = False
+                                    break
+                                cur_stride *= <Py_ssize_t> shape[i]
+                            else:
+                                arg_is_pythran_compatible = not (arg.flags.f_contiguous and (<Py_ssize_t>arg.ndim) > 1)
+                """)
+        pyx_code.named_insertion_point("numpy_dtype_checks")
+        self._buffer_check_numpy_dtype(pyx_code, buffer_types, pythran_types)
+        pyx_code.dedent(2)
+
+        for specialized_type in buffer_types:
+            self._buffer_parse_format_string_check(
+                    pyx_code, decl_code, specialized_type, env)
+
+    def _buffer_declarations(self, pyx_code, decl_code, all_buffer_types, pythran_types):
+        """
+        If we have any buffer specializations, write out some variable
+        declarations and imports.
+        """
+        decl_code.put_chunk(
+            u"""
+                ctypedef struct {{memviewslice_cname}}:
+                    void *memview
+
+                void __PYX_XDEC_MEMVIEW({{memviewslice_cname}} *, int have_gil)
+                bint __pyx_memoryview_check(object)
+            """)
+
+        pyx_code.local_variable_declarations.put_chunk(
+            u"""
+                cdef {{memviewslice_cname}} memslice
+                cdef Py_ssize_t itemsize
+                cdef bint dtype_signed
+                cdef char kind
+
+                itemsize = -1
+            """)
+
+        if pythran_types:
+            pyx_code.local_variable_declarations.put_chunk(u"""
+                cdef bint arg_is_pythran_compatible
+                cdef Py_ssize_t cur_stride
+            """)
+
+        pyx_code.imports.put_chunk(
+            u"""
+                cdef type ndarray
+                ndarray = __Pyx_ImportNumPyArrayTypeIfAvailable()
+            """)
+
+        seen_typedefs = set()
+        seen_int_dtypes = set()
+        for buffer_type in all_buffer_types:
+            dtype = buffer_type.dtype
+            dtype_name = self._dtype_name(dtype)
+            if dtype.is_typedef:
+                if dtype_name not in seen_typedefs:
+                    seen_typedefs.add(dtype_name)
+                    decl_code.putln(
+                        'ctypedef %s %s "%s"' % (dtype.resolve(), dtype_name,
+                                                 dtype.empty_declaration_code()))
+
+            if buffer_type.dtype.is_int:
+                if str(dtype) not in seen_int_dtypes:
+                    seen_int_dtypes.add(str(dtype))
+                    pyx_code.context.update(dtype_name=dtype_name,
+                                            dtype_type=self._dtype_type(dtype))
+                    pyx_code.local_variable_declarations.put_chunk(
+                        u"""
+                            cdef bint {{dtype_name}}_is_signed
+                            {{dtype_name}}_is_signed = not (<{{dtype_type}}> -1 > 0)
+                        """)
+
+    def _split_fused_types(self, arg):
+        """
+        Specialize fused types and split into normal types and buffer types.
+        """
+        specialized_types = PyrexTypes.get_specialized_types(arg.type)
+
+        # Prefer long over int, etc by sorting (see type classes in PyrexTypes.py)
+        specialized_types.sort()
+
+        seen_py_type_names = set()
+        normal_types, buffer_types, pythran_types = [], [], []
+        has_object_fallback = False
+        for specialized_type in specialized_types:
+            py_type_name = specialized_type.py_type_name()
+            if py_type_name:
+                if py_type_name in seen_py_type_names:
+                    continue
+                seen_py_type_names.add(py_type_name)
+                if py_type_name == 'object':
+                    has_object_fallback = True
+                else:
+                    normal_types.append(specialized_type)
+            elif specialized_type.is_pythran_expr:
+                pythran_types.append(specialized_type)
+            elif specialized_type.is_buffer or specialized_type.is_memoryviewslice:
+                buffer_types.append(specialized_type)
+
+        return normal_types, buffer_types, pythran_types, has_object_fallback
+
+    def _unpack_argument(self, pyx_code):
+        pyx_code.put_chunk(
+            u"""
+                # PROCESSING ARGUMENT {{arg_tuple_idx}}
+                if {{arg_tuple_idx}} < len(<tuple>args):
+                    arg = (<tuple>args)[{{arg_tuple_idx}}]
+                elif kwargs is not None and '{{arg.name}}' in <dict>kwargs:
+                    arg = (<dict>kwargs)['{{arg.name}}']
+                else:
+                {{if arg.default}}
+                    arg = (<tuple>defaults)[{{default_idx}}]
+                {{else}}
+                    {{if arg_tuple_idx < min_positional_args}}
+                        raise TypeError("Expected at least %d argument%s, got %d" % (
+                            {{min_positional_args}}, {{'"s"' if min_positional_args != 1 else '""'}}, len(<tuple>args)))
+                    {{else}}
+                        raise TypeError("Missing keyword-only argument: '%s'" % "{{arg.default}}")
+                    {{endif}}
+                {{endif}}
+            """)
+
+    def make_fused_cpdef(self, orig_py_func, env, is_def):
+        """
+        This creates the function that is indexable from Python and does
+        runtime dispatch based on the argument types. The function gets the
+        arg tuple and kwargs dict (or None) and the defaults tuple
+        as arguments from the Binding Fused Function's tp_call.
+        """
+        from . import TreeFragment, Code, UtilityCode
+
+        fused_types = self._get_fused_base_types([
+            arg.type for arg in self.node.args if arg.type.is_fused])
+
+        context = {
+            'memviewslice_cname': MemoryView.memviewslice_cname,
+            'func_args': self.node.args,
+            'n_fused': len(fused_types),
+            'min_positional_args':
+                self.node.num_required_args - self.node.num_required_kw_args
+                if is_def else
+                sum(1 for arg in self.node.args if arg.default is None),
+            'name': orig_py_func.entry.name,
+        }
+
+        pyx_code = Code.PyxCodeWriter(context=context)
+        decl_code = Code.PyxCodeWriter(context=context)
+        decl_code.put_chunk(
+            u"""
+                cdef extern from *:
+                    void __pyx_PyErr_Clear "PyErr_Clear" ()
+                    type __Pyx_ImportNumPyArrayTypeIfAvailable()
+                    int __Pyx_Is_Little_Endian()
+            """)
+        decl_code.indent()
+
+        pyx_code.put_chunk(
+            u"""
+                def __pyx_fused_cpdef(signatures, args, kwargs, defaults):
+                    # FIXME: use a typed signature - currently fails badly because
+                    #        default arguments inherit the types we specify here!
+
+                    dest_sig = [None] * {{n_fused}}
+
+                    if kwargs is not None and not kwargs:
+                        kwargs = None
+
+                    cdef Py_ssize_t i
+
+                    # instance check body
+            """)
+
+        pyx_code.indent() # indent following code to function body
+        pyx_code.named_insertion_point("imports")
+        pyx_code.named_insertion_point("func_defs")
+        pyx_code.named_insertion_point("local_variable_declarations")
+
+        fused_index = 0
+        default_idx = 0
+        all_buffer_types = OrderedSet()
+        seen_fused_types = set()
+        for i, arg in enumerate(self.node.args):
+            if arg.type.is_fused:
+                arg_fused_types = arg.type.get_fused_types()
+                if len(arg_fused_types) > 1:
+                    raise NotImplementedError("Determination of more than one fused base "
+                                              "type per argument is not implemented.")
+                fused_type = arg_fused_types[0]
+
+            if arg.type.is_fused and fused_type not in seen_fused_types:
+                seen_fused_types.add(fused_type)
+
+                context.update(
+                    arg_tuple_idx=i,
+                    arg=arg,
+                    dest_sig_idx=fused_index,
+                    default_idx=default_idx,
+                )
+
+                normal_types, buffer_types, pythran_types, has_object_fallback = self._split_fused_types(arg)
+                self._unpack_argument(pyx_code)
+
+                # 'unrolled' loop, first match breaks out of it
+                if pyx_code.indenter("while 1:"):
+                    if normal_types:
+                        self._fused_instance_checks(normal_types, pyx_code, env)
+                    if buffer_types or pythran_types:
+                        env.use_utility_code(Code.UtilityCode.load_cached("IsLittleEndian", "ModuleSetupCode.c"))
+                        self._buffer_checks(buffer_types, pythran_types, pyx_code, decl_code, env)
+                    if has_object_fallback:
+                        pyx_code.context.update(specialized_type_name='object')
+                        pyx_code.putln(self.match)
+                    else:
+                        pyx_code.putln(self.no_match)
+                    pyx_code.putln("break")
+                    pyx_code.dedent()
+
+                fused_index += 1
+                all_buffer_types.update(buffer_types)
+                all_buffer_types.update(ty.org_buffer for ty in pythran_types)
+
+            if arg.default:
+                default_idx += 1
+
+        if all_buffer_types:
+            self._buffer_declarations(pyx_code, decl_code, all_buffer_types, pythran_types)
+            env.use_utility_code(Code.UtilityCode.load_cached("Import", "ImportExport.c"))
+            env.use_utility_code(Code.UtilityCode.load_cached("ImportNumPyArray", "ImportExport.c"))
+
+        pyx_code.put_chunk(
+            u"""
+                candidates = []
+                for sig in <dict>signatures:
+                    match_found = False
+                    src_sig = sig.strip('()').split('|')
+                    for i in range(len(dest_sig)):
+                        dst_type = dest_sig[i]
+                        if dst_type is not None:
+                            if src_sig[i] == dst_type:
+                                match_found = True
+                            else:
+                                match_found = False
+                                break
+
+                    if match_found:
+                        candidates.append(sig)
+
+                if not candidates:
+                    raise TypeError("No matching signature found")
+                elif len(candidates) > 1:
+                    raise TypeError("Function call with ambiguous argument types")
+                else:
+                    return (<dict>signatures)[candidates[0]]
+            """)
+
+        fragment_code = pyx_code.getvalue()
+        # print decl_code.getvalue()
+        # print fragment_code
+        from .Optimize import ConstantFolding
+        fragment = TreeFragment.TreeFragment(
+            fragment_code, level='module', pipeline=[ConstantFolding()])
+        ast = TreeFragment.SetPosTransform(self.node.pos)(fragment.root)
+        UtilityCode.declare_declarations_in_scope(
+            decl_code.getvalue(), env.global_scope())
+        ast.scope = env
+        # FIXME: for static methods of cdef classes, we build the wrong signature here: first arg becomes 'self'
+        ast.analyse_declarations(env)
+        py_func = ast.stats[-1]  # the DefNode
+        self.fragment_scope = ast.scope
+
+        if isinstance(self.node, DefNode):
+            py_func.specialized_cpdefs = self.nodes[:]
+        else:
+            py_func.specialized_cpdefs = [n.py_func for n in self.nodes]
+
+        return py_func
+
+    def update_fused_defnode_entry(self, env):
+        copy_attributes = (
+            'name', 'pos', 'cname', 'func_cname', 'pyfunc_cname',
+            'pymethdef_cname', 'doc', 'doc_cname', 'is_member',
+            'scope'
+        )
+
+        entry = self.py_func.entry
+
+        for attr in copy_attributes:
+            setattr(entry, attr,
+                    getattr(self.orig_py_func.entry, attr))
+
+        self.py_func.name = self.orig_py_func.name
+        self.py_func.doc = self.orig_py_func.doc
+
+        env.entries.pop('__pyx_fused_cpdef', None)
+        if isinstance(self.node, DefNode):
+            env.entries[entry.name] = entry
+        else:
+            env.entries[entry.name].as_variable = entry
+
+        env.pyfunc_entries.append(entry)
+
+        self.py_func.entry.fused_cfunction = self
+        for node in self.nodes:
+            if isinstance(self.node, DefNode):
+                node.fused_py_func = self.py_func
+            else:
+                node.py_func.fused_py_func = self.py_func
+                node.entry.as_variable = entry
+
+        self.synthesize_defnodes()
+        self.stats.append(self.__signatures__)
+
+    def analyse_expressions(self, env):
+        """
+        Analyse the expressions. Take care to only evaluate default arguments
+        once and clone the result for all specializations
+        """
+        for fused_compound_type in self.fused_compound_types:
+            for fused_type in fused_compound_type.get_fused_types():
+                for specialization_type in fused_type.types:
+                    if specialization_type.is_complex:
+                        specialization_type.create_declaration_utility_code(env)
+
+        if self.py_func:
+            self.__signatures__ = self.__signatures__.analyse_expressions(env)
+            self.py_func = self.py_func.analyse_expressions(env)
+            self.resulting_fused_function = self.resulting_fused_function.analyse_expressions(env)
+            self.fused_func_assignment = self.fused_func_assignment.analyse_expressions(env)
+
+        self.defaults = defaults = []
+
+        for arg in self.node.args:
+            if arg.default:
+                arg.default = arg.default.analyse_expressions(env)
+                defaults.append(ProxyNode(arg.default))
+            else:
+                defaults.append(None)
+
+        for i, stat in enumerate(self.stats):
+            stat = self.stats[i] = stat.analyse_expressions(env)
+            if isinstance(stat, FuncDefNode):
+                for arg, default in zip(stat.args, defaults):
+                    if default is not None:
+                        arg.default = CloneNode(default).coerce_to(arg.type, env)
+
+        if self.py_func:
+            args = [CloneNode(default) for default in defaults if default]
+            self.defaults_tuple = TupleNode(self.pos, args=args)
+            self.defaults_tuple = self.defaults_tuple.analyse_types(env, skip_children=True).coerce_to_pyobject(env)
+            self.defaults_tuple = ProxyNode(self.defaults_tuple)
+            self.code_object = ProxyNode(self.specialized_pycfuncs[0].code_object)
+
+            fused_func = self.resulting_fused_function.arg
+            fused_func.defaults_tuple = CloneNode(self.defaults_tuple)
+            fused_func.code_object = CloneNode(self.code_object)
+
+            for i, pycfunc in enumerate(self.specialized_pycfuncs):
+                pycfunc.code_object = CloneNode(self.code_object)
+                pycfunc = self.specialized_pycfuncs[i] = pycfunc.analyse_types(env)
+                pycfunc.defaults_tuple = CloneNode(self.defaults_tuple)
+        return self
+
+    def synthesize_defnodes(self):
+        """
+        Create the __signatures__ dict of PyCFunctionNode specializations.
+        """
+        if isinstance(self.nodes[0], CFuncDefNode):
+            nodes = [node.py_func for node in self.nodes]
+        else:
+            nodes = self.nodes
+
+        signatures = [StringEncoding.EncodedString(node.specialized_signature_string)
+                      for node in nodes]
+        keys = [ExprNodes.StringNode(node.pos, value=sig)
+                for node, sig in zip(nodes, signatures)]
+        values = [ExprNodes.PyCFunctionNode.from_defnode(node, binding=True)
+                  for node in nodes]
+
+        self.__signatures__ = ExprNodes.DictNode.from_pairs(self.pos, zip(keys, values))
+
+        self.specialized_pycfuncs = values
+        for pycfuncnode in values:
+            pycfuncnode.is_specialization = True
+
+    def generate_function_definitions(self, env, code):
+        if self.py_func:
+            self.py_func.pymethdef_required = True
+            self.fused_func_assignment.generate_function_definitions(env, code)
+
+        for stat in self.stats:
+            if isinstance(stat, FuncDefNode) and stat.entry.used:
+                code.mark_pos(stat.pos)
+                stat.generate_function_definitions(env, code)
+
+    def generate_execution_code(self, code):
+        # Note: all def function specialization are wrapped in PyCFunction
+        # nodes in the self.__signatures__ dictnode.
+        for default in self.defaults:
+            if default is not None:
+                default.generate_evaluation_code(code)
+
+        if self.py_func:
+            self.defaults_tuple.generate_evaluation_code(code)
+            self.code_object.generate_evaluation_code(code)
+
+        for stat in self.stats:
+            code.mark_pos(stat.pos)
+            if isinstance(stat, ExprNodes.ExprNode):
+                stat.generate_evaluation_code(code)
+            else:
+                stat.generate_execution_code(code)
+
+        if self.__signatures__:
+            self.resulting_fused_function.generate_evaluation_code(code)
+
+            code.putln(
+                "((__pyx_FusedFunctionObject *) %s)->__signatures__ = %s;" %
+                                    (self.resulting_fused_function.result(),
+                                     self.__signatures__.result()))
+            code.put_giveref(self.__signatures__.result())
+            self.__signatures__.generate_post_assignment_code(code)
+            self.__signatures__.free_temps(code)
+
+            self.fused_func_assignment.generate_execution_code(code)
+
+            # Dispose of results
+            self.resulting_fused_function.generate_disposal_code(code)
+            self.resulting_fused_function.free_temps(code)
+            self.defaults_tuple.generate_disposal_code(code)
+            self.defaults_tuple.free_temps(code)
+            self.code_object.generate_disposal_code(code)
+            self.code_object.free_temps(code)
+
+        for default in self.defaults:
+            if default is not None:
+                default.generate_disposal_code(code)
+                default.free_temps(code)
+
+    def annotate(self, code):
+        for stat in self.stats:
+            stat.annotate(code)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Future.py

@@ -0,0 +1,15 @@
+def _get_feature(name):
+    import __future__
+    # fall back to a unique fake object for earlier Python versions or Python 3
+    return getattr(__future__, name, object())
+
+unicode_literals = _get_feature("unicode_literals")
+with_statement = _get_feature("with_statement")  # dummy
+division = _get_feature("division")
+print_function = _get_feature("print_function")
+absolute_import = _get_feature("absolute_import")
+nested_scopes = _get_feature("nested_scopes")  # dummy
+generators = _get_feature("generators")  # dummy
+generator_stop = _get_feature("generator_stop")
+
+del _get_feature

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Interpreter.py

@@ -0,0 +1,64 @@
+"""
+This module deals with interpreting the parse tree as Python
+would have done, in the compiler.
+
+For now this only covers parse tree to value conversion of
+compile-time values.
+"""
+
+from __future__ import absolute_import
+
+from .Nodes import *
+from .ExprNodes import *
+from .Errors import CompileError
+
+
+class EmptyScope(object):
+    def lookup(self, name):
+        return None
+
+empty_scope = EmptyScope()
+
+def interpret_compiletime_options(optlist, optdict, type_env=None, type_args=()):
+    """
+    Tries to interpret a list of compile time option nodes.
+    The result will be a tuple (optlist, optdict) but where
+    all expression nodes have been interpreted. The result is
+    in the form of tuples (value, pos).
+
+    optlist is a list of nodes, while optdict is a DictNode (the
+    result optdict is a dict)
+
+    If type_env is set, all type nodes will be analysed and the resulting
+    type set. Otherwise only interpretateable ExprNodes
+    are allowed, other nodes raises errors.
+
+    A CompileError will be raised if there are problems.
+    """
+
+    def interpret(node, ix):
+        if ix in type_args:
+            if type_env:
+                type = node.analyse_as_type(type_env)
+                if not type:
+                    raise CompileError(node.pos, "Invalid type.")
+                return (type, node.pos)
+            else:
+                raise CompileError(node.pos, "Type not allowed here.")
+        else:
+            if (sys.version_info[0] >=3 and
+                isinstance(node, StringNode) and
+                node.unicode_value is not None):
+                return (node.unicode_value, node.pos)
+            return (node.compile_time_value(empty_scope), node.pos)
+
+    if optlist:
+        optlist = [interpret(x, ix) for ix, x in enumerate(optlist)]
+    if optdict:
+        assert isinstance(optdict, DictNode)
+        new_optdict = {}
+        for item in optdict.key_value_pairs:
+            new_key, dummy = interpret(item.key, None)
+            new_optdict[new_key] = interpret(item.value, item.key.value)
+        optdict = new_optdict
+    return (optlist, new_optdict)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Lexicon.py

@@ -0,0 +1,138 @@
+# cython: language_level=3, py2_import=True
+#
+#   Cython Scanner - Lexical Definitions
+#
+
+from __future__ import absolute_import, unicode_literals
+
+raw_prefixes = "rR"
+bytes_prefixes = "bB"
+string_prefixes = "fFuU" + bytes_prefixes
+char_prefixes = "cC"
+any_string_prefix = raw_prefixes + string_prefixes + char_prefixes
+IDENT = 'IDENT'
+
+
+def make_lexicon():
+    from ..Plex import \
+        Str, Any, AnyBut, AnyChar, Rep, Rep1, Opt, Bol, Eol, Eof, \
+        TEXT, IGNORE, State, Lexicon
+    from .Scanning import Method
+
+    letter = Any("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_")
+    digit = Any("0123456789")
+    bindigit = Any("01")
+    octdigit = Any("01234567")
+    hexdigit = Any("0123456789ABCDEFabcdef")
+    indentation = Bol + Rep(Any(" \t"))
+
+    def underscore_digits(d):
+        return Rep1(d) + Rep(Str("_") + Rep1(d))
+
+    decimal = underscore_digits(digit)
+    dot = Str(".")
+    exponent = Any("Ee") + Opt(Any("+-")) + decimal
+    decimal_fract = (decimal + dot + Opt(decimal)) | (dot + decimal)
+
+    name = letter + Rep(letter | digit)
+    intconst = decimal | (Str("0") + ((Any("Xx") + underscore_digits(hexdigit)) |
+                                      (Any("Oo") + underscore_digits(octdigit)) |
+                                      (Any("Bb") + underscore_digits(bindigit)) ))
+    intsuffix = (Opt(Any("Uu")) + Opt(Any("Ll")) + Opt(Any("Ll"))) | (Opt(Any("Ll")) + Opt(Any("Ll")) + Opt(Any("Uu")))
+    intliteral = intconst + intsuffix
+    fltconst = (decimal_fract + Opt(exponent)) | (decimal + exponent)
+    imagconst = (intconst | fltconst) + Any("jJ")
+
+    # invalid combinations of prefixes are caught in p_string_literal
+    beginstring = Opt(Rep(Any(string_prefixes + raw_prefixes)) |
+                      Any(char_prefixes)
+                      ) + (Str("'") | Str('"') | Str("'''") | Str('"""'))
+    two_oct = octdigit + octdigit
+    three_oct = octdigit + octdigit + octdigit
+    two_hex = hexdigit + hexdigit
+    four_hex = two_hex + two_hex
+    escapeseq = Str("\\") + (two_oct | three_oct |
+                             Str('N{') + Rep(AnyBut('}')) + Str('}') |
+                             Str('u') + four_hex | Str('x') + two_hex |
+                             Str('U') + four_hex + four_hex | AnyChar)
+
+    bra = Any("([{")
+    ket = Any(")]}")
+    punct = Any(":,;+-*/|&<>=.%`~^?!@")
+    diphthong = Str("==", "<>", "!=", "<=", ">=", "<<", ">>", "**", "//",
+                    "+=", "-=", "*=", "/=", "%=", "|=", "^=", "&=",
+                    "<<=", ">>=", "**=", "//=", "->", "@=")
+    spaces = Rep1(Any(" \t\f"))
+    escaped_newline = Str("\\\n")
+    lineterm = Eol + Opt(Str("\n"))
+
+    comment = Str("#") + Rep(AnyBut("\n"))
+
+    return Lexicon([
+        (name, IDENT),
+        (intliteral, Method('strip_underscores', symbol='INT')),
+        (fltconst, Method('strip_underscores', symbol='FLOAT')),
+        (imagconst, Method('strip_underscores', symbol='IMAG')),
+        (punct | diphthong, TEXT),
+
+        (bra, Method('open_bracket_action')),
+        (ket, Method('close_bracket_action')),
+        (lineterm, Method('newline_action')),
+
+        (beginstring, Method('begin_string_action')),
+
+        (comment, IGNORE),
+        (spaces, IGNORE),
+        (escaped_newline, IGNORE),
+
+        State('INDENT', [
+            (comment + lineterm, Method('commentline')),
+            (Opt(spaces) + Opt(comment) + lineterm, IGNORE),
+            (indentation, Method('indentation_action')),
+            (Eof, Method('eof_action'))
+        ]),
+
+        State('SQ_STRING', [
+            (escapeseq, 'ESCAPE'),
+            (Rep1(AnyBut("'\"\n\\")), 'CHARS'),
+            (Str('"'), 'CHARS'),
+            (Str("\n"), Method('unclosed_string_action')),
+            (Str("'"), Method('end_string_action')),
+            (Eof, 'EOF')
+        ]),
+
+        State('DQ_STRING', [
+            (escapeseq, 'ESCAPE'),
+            (Rep1(AnyBut('"\n\\')), 'CHARS'),
+            (Str("'"), 'CHARS'),
+            (Str("\n"), Method('unclosed_string_action')),
+            (Str('"'), Method('end_string_action')),
+            (Eof, 'EOF')
+        ]),
+
+        State('TSQ_STRING', [
+            (escapeseq, 'ESCAPE'),
+            (Rep1(AnyBut("'\"\n\\")), 'CHARS'),
+            (Any("'\""), 'CHARS'),
+            (Str("\n"), 'NEWLINE'),
+            (Str("'''"), Method('end_string_action')),
+            (Eof, 'EOF')
+        ]),
+
+        State('TDQ_STRING', [
+            (escapeseq, 'ESCAPE'),
+            (Rep1(AnyBut('"\'\n\\')), 'CHARS'),
+            (Any("'\""), 'CHARS'),
+            (Str("\n"), 'NEWLINE'),
+            (Str('"""'), Method('end_string_action')),
+            (Eof, 'EOF')
+        ]),
+
+        (Eof, Method('eof_action'))
+        ],
+
+        # FIXME: Plex 1.9 needs different args here from Plex 1.1.4
+        #debug_flags = scanner_debug_flags,
+        #debug_file = scanner_dump_file
+        )
+

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Main.py

@@ -0,0 +1,914 @@
+#
+#   Cython Top Level
+#
+
+from __future__ import absolute_import
+
+import os
+import re
+import sys
+import io
+
+if sys.version_info[:2] < (2, 6) or (3, 0) <= sys.version_info[:2] < (3, 3):
+    sys.stderr.write("Sorry, Cython requires Python 2.6+ or 3.3+, found %d.%d\n" % tuple(sys.version_info[:2]))
+    sys.exit(1)
+
+try:
+    from __builtin__ import basestring
+except ImportError:
+    basestring = str
+
+# Do not import Parsing here, import it when needed, because Parsing imports
+# Nodes, which globally needs debug command line options initialized to set a
+# conditional metaclass. These options are processed by CmdLine called from
+# main() in this file.
+# import Parsing
+from . import Errors
+from .StringEncoding import EncodedString
+from .Scanning import PyrexScanner, FileSourceDescriptor
+from .Errors import PyrexError, CompileError, error, warning
+from .Symtab import ModuleScope
+from .. import Utils
+from . import Options
+
+from . import Version  # legacy import needed by old PyTables versions
+version = Version.version  # legacy attribute - use "Cython.__version__" instead
+
+module_name_pattern = re.compile(r"[A-Za-z_][A-Za-z0-9_]*(\.[A-Za-z_][A-Za-z0-9_]*)*$")
+
+verbose = 0
+
+standard_include_path = os.path.abspath(os.path.join(os.path.dirname(__file__),
+                                        os.path.pardir, 'Includes'))
+
+class CompilationData(object):
+    #  Bundles the information that is passed from transform to transform.
+    #  (For now, this is only)
+
+    #  While Context contains every pxd ever loaded, path information etc.,
+    #  this only contains the data related to a single compilation pass
+    #
+    #  pyx                   ModuleNode              Main code tree of this compilation.
+    #  pxds                  {string : ModuleNode}   Trees for the pxds used in the pyx.
+    #  codewriter            CCodeWriter             Where to output final code.
+    #  options               CompilationOptions
+    #  result                CompilationResult
+    pass
+
+
+class Context(object):
+    #  This class encapsulates the context needed for compiling
+    #  one or more Cython implementation files along with their
+    #  associated and imported declaration files. It includes
+    #  the root of the module import namespace and the list
+    #  of directories to search for include files.
+    #
+    #  modules               {string : ModuleScope}
+    #  include_directories   [string]
+    #  future_directives     [object]
+    #  language_level        int     currently 2 or 3 for Python 2/3
+
+    cython_scope = None
+    language_level = None  # warn when not set but default to Py2
+
+    def __init__(self, include_directories, compiler_directives, cpp=False,
+                 language_level=None, options=None):
+        # cython_scope is a hack, set to False by subclasses, in order to break
+        # an infinite loop.
+        # Better code organization would fix it.
+
+        from . import Builtin, CythonScope
+        self.modules = {"__builtin__" : Builtin.builtin_scope}
+        self.cython_scope = CythonScope.create_cython_scope(self)
+        self.modules["cython"] = self.cython_scope
+        self.include_directories = include_directories
+        self.future_directives = set()
+        self.compiler_directives = compiler_directives
+        self.cpp = cpp
+        self.options = options
+
+        self.pxds = {}  # full name -> node tree
+        self._interned = {}  # (type(value), value, *key_args) -> interned_value
+
+        if language_level is not None:
+            self.set_language_level(language_level)
+
+        self.gdb_debug_outputwriter = None
+
+    def set_language_level(self, level):
+        from .Future import print_function, unicode_literals, absolute_import, division
+        future_directives = set()
+        if level == '3str':
+            level = 3
+        else:
+            level = int(level)
+            if level >= 3:
+                future_directives.add(unicode_literals)
+        if level >= 3:
+            future_directives.update([print_function, absolute_import, division])
+        self.language_level = level
+        self.future_directives = future_directives
+        if level >= 3:
+            self.modules['builtins'] = self.modules['__builtin__']
+
+    def intern_ustring(self, value, encoding=None):
+        key = (EncodedString, value, encoding)
+        try:
+            return self._interned[key]
+        except KeyError:
+            pass
+        value = EncodedString(value)
+        if encoding:
+            value.encoding = encoding
+        self._interned[key] = value
+        return value
+
+    def intern_value(self, value, *key):
+        key = (type(value), value) + key
+        try:
+            return self._interned[key]
+        except KeyError:
+            pass
+        self._interned[key] = value
+        return value
+
+    # pipeline creation functions can now be found in Pipeline.py
+
+    def process_pxd(self, source_desc, scope, module_name):
+        from . import Pipeline
+        if isinstance(source_desc, FileSourceDescriptor) and source_desc._file_type == 'pyx':
+            source = CompilationSource(source_desc, module_name, os.getcwd())
+            result_sink = create_default_resultobj(source, self.options)
+            pipeline = Pipeline.create_pyx_as_pxd_pipeline(self, result_sink)
+            result = Pipeline.run_pipeline(pipeline, source)
+        else:
+            pipeline = Pipeline.create_pxd_pipeline(self, scope, module_name)
+            result = Pipeline.run_pipeline(pipeline, source_desc)
+        return result
+
+    def nonfatal_error(self, exc):
+        return Errors.report_error(exc)
+
+    def find_module(self, module_name, relative_to=None, pos=None, need_pxd=1,
+                    absolute_fallback=True):
+        # Finds and returns the module scope corresponding to
+        # the given relative or absolute module name. If this
+        # is the first time the module has been requested, finds
+        # the corresponding .pxd file and process it.
+        # If relative_to is not None, it must be a module scope,
+        # and the module will first be searched for relative to
+        # that module, provided its name is not a dotted name.
+        debug_find_module = 0
+        if debug_find_module:
+            print("Context.find_module: module_name = %s, relative_to = %s, pos = %s, need_pxd = %s" % (
+                module_name, relative_to, pos, need_pxd))
+
+        scope = None
+        pxd_pathname = None
+        if relative_to:
+            if module_name:
+                # from .module import ...
+                qualified_name = relative_to.qualify_name(module_name)
+            else:
+                # from . import ...
+                qualified_name = relative_to.qualified_name
+                scope = relative_to
+                relative_to = None
+        else:
+            qualified_name = module_name
+
+        if not module_name_pattern.match(qualified_name):
+            raise CompileError(pos or (module_name, 0, 0),
+                               "'%s' is not a valid module name" % module_name)
+
+        if relative_to:
+            if debug_find_module:
+                print("...trying relative import")
+            scope = relative_to.lookup_submodule(module_name)
+            if not scope:
+                pxd_pathname = self.find_pxd_file(qualified_name, pos)
+                if pxd_pathname:
+                    scope = relative_to.find_submodule(module_name)
+        if not scope:
+            if debug_find_module:
+                print("...trying absolute import")
+            if absolute_fallback:
+                qualified_name = module_name
+            scope = self
+            for name in qualified_name.split("."):
+                scope = scope.find_submodule(name)
+
+        if debug_find_module:
+            print("...scope = %s" % scope)
+        if not scope.pxd_file_loaded:
+            if debug_find_module:
+                print("...pxd not loaded")
+            if not pxd_pathname:
+                if debug_find_module:
+                    print("...looking for pxd file")
+                # Only look in sys.path if we are explicitly looking
+                # for a .pxd file.
+                pxd_pathname = self.find_pxd_file(qualified_name, pos, sys_path=need_pxd)
+                if debug_find_module:
+                    print("......found %s" % pxd_pathname)
+                if not pxd_pathname and need_pxd:
+                    # Set pxd_file_loaded such that we don't need to
+                    # look for the non-existing pxd file next time.
+                    scope.pxd_file_loaded = True
+                    package_pathname = self.search_include_directories(qualified_name, ".py", pos)
+                    if package_pathname and package_pathname.endswith('__init__.py'):
+                        pass
+                    else:
+                        error(pos, "'%s.pxd' not found" % qualified_name.replace('.', os.sep))
+            if pxd_pathname:
+                scope.pxd_file_loaded = True
+                try:
+                    if debug_find_module:
+                        print("Context.find_module: Parsing %s" % pxd_pathname)
+                    rel_path = module_name.replace('.', os.sep) + os.path.splitext(pxd_pathname)[1]
+                    if not pxd_pathname.endswith(rel_path):
+                        rel_path = pxd_pathname  # safety measure to prevent printing incorrect paths
+                    source_desc = FileSourceDescriptor(pxd_pathname, rel_path)
+                    err, result = self.process_pxd(source_desc, scope, qualified_name)
+                    if err:
+                        raise err
+                    (pxd_codenodes, pxd_scope) = result
+                    self.pxds[module_name] = (pxd_codenodes, pxd_scope)
+                except CompileError:
+                    pass
+        return scope
+
+    def find_pxd_file(self, qualified_name, pos, sys_path=True):
+        # Search include path (and sys.path if sys_path is True) for
+        # the .pxd file corresponding to the given fully-qualified
+        # module name.
+        # Will find either a dotted filename or a file in a
+        # package directory. If a source file position is given,
+        # the directory containing the source file is searched first
+        # for a dotted filename, and its containing package root
+        # directory is searched first for a non-dotted filename.
+        pxd = self.search_include_directories(qualified_name, ".pxd", pos, sys_path=sys_path)
+        if pxd is None: # XXX Keep this until Includes/Deprecated is removed
+            if (qualified_name.startswith('python') or
+                    qualified_name in ('stdlib', 'stdio', 'stl')):
+                standard_include_path = os.path.abspath(os.path.normpath(
+                        os.path.join(os.path.dirname(__file__), os.path.pardir, 'Includes')))
+                deprecated_include_path = os.path.join(standard_include_path, 'Deprecated')
+                self.include_directories.append(deprecated_include_path)
+                try:
+                    pxd = self.search_include_directories(qualified_name, ".pxd", pos)
+                finally:
+                    self.include_directories.pop()
+                if pxd:
+                    name = qualified_name
+                    if name.startswith('python'):
+                        warning(pos, "'%s' is deprecated, use 'cpython'" % name, 1)
+                    elif name in ('stdlib', 'stdio'):
+                        warning(pos, "'%s' is deprecated, use 'libc.%s'" % (name, name), 1)
+                    elif name in ('stl'):
+                        warning(pos, "'%s' is deprecated, use 'libcpp.*.*'" % name, 1)
+        if pxd is None and Options.cimport_from_pyx:
+            return self.find_pyx_file(qualified_name, pos)
+        return pxd
+
+    def find_pyx_file(self, qualified_name, pos):
+        # Search include path for the .pyx file corresponding to the
+        # given fully-qualified module name, as for find_pxd_file().
+        return self.search_include_directories(qualified_name, ".pyx", pos)
+
+    def find_include_file(self, filename, pos):
+        # Search list of include directories for filename.
+        # Reports an error and returns None if not found.
+        path = self.search_include_directories(filename, "", pos,
+                                               include=True)
+        if not path:
+            error(pos, "'%s' not found" % filename)
+        return path
+
+    def search_include_directories(self, qualified_name, suffix, pos,
+                                   include=False, sys_path=False):
+        include_dirs = self.include_directories
+        if sys_path:
+            include_dirs = include_dirs + sys.path
+        # include_dirs must be hashable for caching in @cached_function
+        include_dirs = tuple(include_dirs + [standard_include_path])
+        return search_include_directories(include_dirs, qualified_name,
+                                          suffix, pos, include)
+
+    def find_root_package_dir(self, file_path):
+        return Utils.find_root_package_dir(file_path)
+
+    def check_package_dir(self, dir, package_names):
+        return Utils.check_package_dir(dir, tuple(package_names))
+
+    def c_file_out_of_date(self, source_path, output_path):
+        if not os.path.exists(output_path):
+            return 1
+        c_time = Utils.modification_time(output_path)
+        if Utils.file_newer_than(source_path, c_time):
+            return 1
+        pos = [source_path]
+        pxd_path = Utils.replace_suffix(source_path, ".pxd")
+        if os.path.exists(pxd_path) and Utils.file_newer_than(pxd_path, c_time):
+            return 1
+        for kind, name in self.read_dependency_file(source_path):
+            if kind == "cimport":
+                dep_path = self.find_pxd_file(name, pos)
+            elif kind == "include":
+                dep_path = self.search_include_directories(name, pos)
+            else:
+                continue
+            if dep_path and Utils.file_newer_than(dep_path, c_time):
+                return 1
+        return 0
+
+    def find_cimported_module_names(self, source_path):
+        return [ name for kind, name in self.read_dependency_file(source_path)
+                 if kind == "cimport" ]
+
+    def is_package_dir(self, dir_path):
+        return Utils.is_package_dir(dir_path)
+
+    def read_dependency_file(self, source_path):
+        dep_path = Utils.replace_suffix(source_path, ".dep")
+        if os.path.exists(dep_path):
+            f = open(dep_path, "rU")
+            chunks = [ line.strip().split(" ", 1)
+                       for line in f.readlines()
+                       if " " in line.strip() ]
+            f.close()
+            return chunks
+        else:
+            return ()
+
+    def lookup_submodule(self, name):
+        # Look up a top-level module. Returns None if not found.
+        return self.modules.get(name, None)
+
+    def find_submodule(self, name):
+        # Find a top-level module, creating a new one if needed.
+        scope = self.lookup_submodule(name)
+        if not scope:
+            scope = ModuleScope(name,
+                parent_module = None, context = self)
+            self.modules[name] = scope
+        return scope
+
+    def parse(self, source_desc, scope, pxd, full_module_name):
+        if not isinstance(source_desc, FileSourceDescriptor):
+            raise RuntimeError("Only file sources for code supported")
+        source_filename = source_desc.filename
+        scope.cpp = self.cpp
+        # Parse the given source file and return a parse tree.
+        num_errors = Errors.num_errors
+        try:
+            with Utils.open_source_file(source_filename) as f:
+                from . import Parsing
+                s = PyrexScanner(f, source_desc, source_encoding = f.encoding,
+                                 scope = scope, context = self)
+                tree = Parsing.p_module(s, pxd, full_module_name)
+                if self.options.formal_grammar:
+                    try:
+                        from ..Parser import ConcreteSyntaxTree
+                    except ImportError:
+                        raise RuntimeError(
+                            "Formal grammar can only be used with compiled Cython with an available pgen.")
+                    ConcreteSyntaxTree.p_module(source_filename)
+        except UnicodeDecodeError as e:
+            #import traceback
+            #traceback.print_exc()
+            raise self._report_decode_error(source_desc, e)
+
+        if Errors.num_errors > num_errors:
+            raise CompileError()
+        return tree
+
+    def _report_decode_error(self, source_desc, exc):
+        msg = exc.args[-1]
+        position = exc.args[2]
+        encoding = exc.args[0]
+
+        line = 1
+        column = idx = 0
+        with io.open(source_desc.filename, "r", encoding='iso8859-1', newline='') as f:
+            for line, data in enumerate(f, 1):
+                idx += len(data)
+                if idx >= position:
+                    column = position - (idx - len(data)) + 1
+                    break
+
+        return error((source_desc, line, column),
+                     "Decoding error, missing or incorrect coding=<encoding-name> "
+                     "at top of source (cannot decode with encoding %r: %s)" % (encoding, msg))
+
+    def extract_module_name(self, path, options):
+        # Find fully_qualified module name from the full pathname
+        # of a source file.
+        dir, filename = os.path.split(path)
+        module_name, _ = os.path.splitext(filename)
+        if "." in module_name:
+            return module_name
+        names = [module_name]
+        while self.is_package_dir(dir):
+            parent, package_name = os.path.split(dir)
+            if parent == dir:
+                break
+            names.append(package_name)
+            dir = parent
+        names.reverse()
+        return ".".join(names)
+
+    def setup_errors(self, options, result):
+        Errors.reset()  # clear any remaining error state
+        if options.use_listing_file:
+            path = result.listing_file = Utils.replace_suffix(result.main_source_file, ".lis")
+        else:
+            path = None
+        Errors.open_listing_file(path=path,
+                                 echo_to_stderr=options.errors_to_stderr)
+
+    def teardown_errors(self, err, options, result):
+        source_desc = result.compilation_source.source_desc
+        if not isinstance(source_desc, FileSourceDescriptor):
+            raise RuntimeError("Only file sources for code supported")
+        Errors.close_listing_file()
+        result.num_errors = Errors.num_errors
+        if result.num_errors > 0:
+            err = True
+        if err and result.c_file:
+            try:
+                Utils.castrate_file(result.c_file, os.stat(source_desc.filename))
+            except EnvironmentError:
+                pass
+            result.c_file = None
+
+
+def get_output_filename(source_filename, cwd, options):
+    if options.cplus:
+        c_suffix = ".cpp"
+    else:
+        c_suffix = ".c"
+    suggested_file_name = Utils.replace_suffix(source_filename, c_suffix)
+    if options.output_file:
+        out_path = os.path.join(cwd, options.output_file)
+        if os.path.isdir(out_path):
+            return os.path.join(out_path, os.path.basename(suggested_file_name))
+        else:
+            return out_path
+    else:
+        return suggested_file_name
+
+
+def create_default_resultobj(compilation_source, options):
+    result = CompilationResult()
+    result.main_source_file = compilation_source.source_desc.filename
+    result.compilation_source = compilation_source
+    source_desc = compilation_source.source_desc
+    result.c_file = get_output_filename(source_desc.filename,
+                        compilation_source.cwd, options)
+    result.embedded_metadata = options.embedded_metadata
+    return result
+
+
+def run_pipeline(source, options, full_module_name=None, context=None):
+    from . import Pipeline
+
+    source_ext = os.path.splitext(source)[1]
+    options.configure_language_defaults(source_ext[1:]) # py/pyx
+    if context is None:
+        context = options.create_context()
+
+    # Set up source object
+    cwd = os.getcwd()
+    abs_path = os.path.abspath(source)
+    full_module_name = full_module_name or context.extract_module_name(source, options)
+
+    Utils.raise_error_if_module_name_forbidden(full_module_name)
+
+    if options.relative_path_in_code_position_comments:
+        rel_path = full_module_name.replace('.', os.sep) + source_ext
+        if not abs_path.endswith(rel_path):
+            rel_path = source # safety measure to prevent printing incorrect paths
+    else:
+        rel_path = abs_path
+    source_desc = FileSourceDescriptor(abs_path, rel_path)
+    source = CompilationSource(source_desc, full_module_name, cwd)
+
+    # Set up result object
+    result = create_default_resultobj(source, options)
+
+    if options.annotate is None:
+        # By default, decide based on whether an html file already exists.
+        html_filename = os.path.splitext(result.c_file)[0] + ".html"
+        if os.path.exists(html_filename):
+            with io.open(html_filename, "r", encoding="UTF-8") as html_file:
+                if u'<!-- Generated by Cython' in html_file.read(100):
+                    options.annotate = True
+
+    # Get pipeline
+    if source_ext.lower() == '.py' or not source_ext:
+        pipeline = Pipeline.create_py_pipeline(context, options, result)
+    else:
+        pipeline = Pipeline.create_pyx_pipeline(context, options, result)
+
+    context.setup_errors(options, result)
+    err, enddata = Pipeline.run_pipeline(pipeline, source)
+    context.teardown_errors(err, options, result)
+    if options.depfile:
+        from ..Build.Dependencies import create_dependency_tree
+        dependencies = create_dependency_tree(context).all_dependencies(result.main_source_file)
+        Utils.write_depfile(result.c_file, result.main_source_file, dependencies)
+    return result
+
+
+# ------------------------------------------------------------------------
+#
+#  Main Python entry points
+#
+# ------------------------------------------------------------------------
+
+class CompilationSource(object):
+    """
+    Contains the data necessary to start up a compilation pipeline for
+    a single compilation unit.
+    """
+    def __init__(self, source_desc, full_module_name, cwd):
+        self.source_desc = source_desc
+        self.full_module_name = full_module_name
+        self.cwd = cwd
+
+
+class CompilationOptions(object):
+    r"""
+    See default_options at the end of this module for a list of all possible
+    options and CmdLine.usage and CmdLine.parse_command_line() for their
+    meaning.
+    """
+    def __init__(self, defaults=None, **kw):
+        self.include_path = []
+        if defaults:
+            if isinstance(defaults, CompilationOptions):
+                defaults = defaults.__dict__
+        else:
+            defaults = default_options
+
+        options = dict(defaults)
+        options.update(kw)
+
+        # let's assume 'default_options' contains a value for most known compiler options
+        # and validate against them
+        unknown_options = set(options) - set(default_options)
+        # ignore valid options that are not in the defaults
+        unknown_options.difference_update(['include_path'])
+        if unknown_options:
+            message = "got unknown compilation option%s, please remove: %s" % (
+                's' if len(unknown_options) > 1 else '',
+                ', '.join(unknown_options))
+            raise ValueError(message)
+
+        directive_defaults = Options.get_directive_defaults()
+        directives = dict(options['compiler_directives'])  # copy mutable field
+        # check for invalid directives
+        unknown_directives = set(directives) - set(directive_defaults)
+        if unknown_directives:
+            message = "got unknown compiler directive%s: %s" % (
+                's' if len(unknown_directives) > 1 else '',
+                ', '.join(unknown_directives))
+            raise ValueError(message)
+        options['compiler_directives'] = directives
+        if directives.get('np_pythran', False) and not options['cplus']:
+            import warnings
+            warnings.warn("C++ mode forced when in Pythran mode!")
+            options['cplus'] = True
+        if 'language_level' in directives and 'language_level' not in kw:
+            options['language_level'] = directives['language_level']
+        elif not options.get('language_level'):
+            options['language_level'] = directive_defaults.get('language_level')
+        if 'formal_grammar' in directives and 'formal_grammar' not in kw:
+            options['formal_grammar'] = directives['formal_grammar']
+        if options['cache'] is True:
+            options['cache'] = os.path.join(Utils.get_cython_cache_dir(), 'compiler')
+
+        self.__dict__.update(options)
+
+    def configure_language_defaults(self, source_extension):
+        if source_extension == 'py':
+            if self.compiler_directives.get('binding') is None:
+                self.compiler_directives['binding'] = True
+
+    def create_context(self):
+        return Context(self.include_path, self.compiler_directives,
+                       self.cplus, self.language_level, options=self)
+
+    def get_fingerprint(self):
+        r"""
+        Return a string that contains all the options that are relevant for cache invalidation.
+        """
+        # Collect only the data that can affect the generated file(s).
+        data = {}
+
+        for key, value in self.__dict__.items():
+            if key in ['show_version', 'errors_to_stderr', 'verbose', 'quiet']:
+                # verbosity flags have no influence on the compilation result
+                continue
+            elif key in ['output_file', 'output_dir']:
+                # ignore the exact name of the output file
+                continue
+            elif key in ['timestamps']:
+                # the cache cares about the content of files, not about the timestamps of sources
+                continue
+            elif key in ['cache']:
+                # hopefully caching has no influence on the compilation result
+                continue
+            elif key in ['compiler_directives']:
+                # directives passed on to the C compiler do not influence the generated C code
+                continue
+            elif key in ['include_path']:
+                # this path changes which headers are tracked as dependencies,
+                # it has no influence on the generated C code
+                continue
+            elif key in ['working_path']:
+                # this path changes where modules and pxd files are found;
+                # their content is part of the fingerprint anyway, their
+                # absolute path does not matter
+                continue
+            elif key in ['create_extension']:
+                # create_extension() has already mangled the options, e.g.,
+                # embedded_metadata, when the fingerprint is computed so we
+                # ignore it here.
+                continue
+            elif key in ['build_dir']:
+                # the (temporary) directory where we collect dependencies
+                # has no influence on the C output
+                continue
+            elif key in ['use_listing_file', 'generate_pxi', 'annotate', 'annotate_coverage_xml']:
+                # all output files are contained in the cache so the types of
+                # files generated must be part of the fingerprint
+                data[key] = value
+            elif key in ['formal_grammar', 'evaluate_tree_assertions']:
+                # these bits can change whether compilation to C passes/fails
+                data[key] = value
+            elif key in ['embedded_metadata', 'emit_linenums', 'c_line_in_traceback', 'gdb_debug', 'relative_path_in_code_position_comments']:
+                # the generated code contains additional bits when these are set
+                data[key] = value
+            elif key in ['cplus', 'language_level', 'compile_time_env', 'np_pythran']:
+                # assorted bits that, e.g., influence the parser
+                data[key] = value
+            elif key == ['capi_reexport_cincludes']:
+                if self.capi_reexport_cincludes:
+                    # our caching implementation does not yet include fingerprints of all the header files
+                    raise NotImplementedError('capi_reexport_cincludes is not compatible with Cython caching')
+            elif key == ['common_utility_include_dir']:
+                if self.common_utility_include_dir:
+                    raise NotImplementedError('common_utility_include_dir is not compatible with Cython caching yet')
+            else:
+                # any unexpected option should go into the fingerprint; it's better
+                # to recompile than to return incorrect results from the cache.
+                data[key] = value
+
+        def to_fingerprint(item):
+            r"""
+            Recursively turn item into a string, turning dicts into lists with
+            deterministic ordering.
+            """
+            if isinstance(item, dict):
+                item = sorted([(repr(key), to_fingerprint(value)) for key, value in item.items()])
+            return repr(item)
+
+        return to_fingerprint(data)
+
+
+class CompilationResult(object):
+    """
+    Results from the Cython compiler:
+
+    c_file           string or None   The generated C source file
+    h_file           string or None   The generated C header file
+    i_file           string or None   The generated .pxi file
+    api_file         string or None   The generated C API .h file
+    listing_file     string or None   File of error messages
+    object_file      string or None   Result of compiling the C file
+    extension_file   string or None   Result of linking the object file
+    num_errors       integer          Number of compilation errors
+    compilation_source CompilationSource
+    """
+
+    def __init__(self):
+        self.c_file = None
+        self.h_file = None
+        self.i_file = None
+        self.api_file = None
+        self.listing_file = None
+        self.object_file = None
+        self.extension_file = None
+        self.main_source_file = None
+
+
+class CompilationResultSet(dict):
+    """
+    Results from compiling multiple Pyrex source files. A mapping
+    from source file paths to CompilationResult instances. Also
+    has the following attributes:
+
+    num_errors   integer   Total number of compilation errors
+    """
+
+    num_errors = 0
+
+    def add(self, source, result):
+        self[source] = result
+        self.num_errors += result.num_errors
+
+
+def compile_single(source, options, full_module_name = None):
+    """
+    compile_single(source, options, full_module_name)
+
+    Compile the given Pyrex implementation file and return a CompilationResult.
+    Always compiles a single file; does not perform timestamp checking or
+    recursion.
+    """
+    return run_pipeline(source, options, full_module_name)
+
+
+def compile_multiple(sources, options):
+    """
+    compile_multiple(sources, options)
+
+    Compiles the given sequence of Pyrex implementation files and returns
+    a CompilationResultSet. Performs timestamp checking and/or recursion
+    if these are specified in the options.
+    """
+    if options.module_name and len(sources) > 1:
+        raise RuntimeError('Full module name can only be set '
+                           'for single source compilation')
+    # run_pipeline creates the context
+    # context = options.create_context()
+    sources = [os.path.abspath(source) for source in sources]
+    processed = set()
+    results = CompilationResultSet()
+    timestamps = options.timestamps
+    verbose = options.verbose
+    context = None
+    cwd = os.getcwd()
+    for source in sources:
+        if source not in processed:
+            if context is None:
+                context = options.create_context()
+            output_filename = get_output_filename(source, cwd, options)
+            out_of_date = context.c_file_out_of_date(source, output_filename)
+            if (not timestamps) or out_of_date:
+                if verbose:
+                    sys.stderr.write("Compiling %s\n" % source)
+                result = run_pipeline(source, options,
+                                      full_module_name=options.module_name,
+                                      context=context)
+                results.add(source, result)
+                # Compiling multiple sources in one context doesn't quite
+                # work properly yet.
+                context = None
+            processed.add(source)
+    return results
+
+
+def compile(source, options = None, full_module_name = None, **kwds):
+    """
+    compile(source [, options], [, <option> = <value>]...)
+
+    Compile one or more Pyrex implementation files, with optional timestamp
+    checking and recursing on dependencies.  The source argument may be a string
+    or a sequence of strings.  If it is a string and no recursion or timestamp
+    checking is requested, a CompilationResult is returned, otherwise a
+    CompilationResultSet is returned.
+    """
+    options = CompilationOptions(defaults = options, **kwds)
+    if isinstance(source, basestring) and not options.timestamps:
+        return compile_single(source, options, full_module_name)
+    else:
+        return compile_multiple(source, options)
+
+
+@Utils.cached_function
+def search_include_directories(dirs, qualified_name, suffix, pos, include=False):
+    """
+    Search the list of include directories for the given file name.
+
+    If a source file position is given, first searches the directory
+    containing that file. Returns None if not found, but does not
+    report an error.
+
+    The 'include' option will disable package dereferencing.
+    """
+
+    if pos:
+        file_desc = pos[0]
+        if not isinstance(file_desc, FileSourceDescriptor):
+            raise RuntimeError("Only file sources for code supported")
+        if include:
+            dirs = (os.path.dirname(file_desc.filename),) + dirs
+        else:
+            dirs = (Utils.find_root_package_dir(file_desc.filename),) + dirs
+
+    dotted_filename = qualified_name
+    if suffix:
+        dotted_filename += suffix
+
+    if not include:
+        names = qualified_name.split('.')
+        package_names = tuple(names[:-1])
+        module_name = names[-1]
+        module_filename = module_name + suffix
+        package_filename = "__init__" + suffix
+
+    for dirname in dirs:
+        path = os.path.join(dirname, dotted_filename)
+        if os.path.exists(path):
+            return path
+
+        if not include:
+            package_dir = Utils.check_package_dir(dirname, package_names)
+            if package_dir is not None:
+                path = os.path.join(package_dir, module_filename)
+                if os.path.exists(path):
+                    return path
+                path = os.path.join(package_dir, module_name,
+                                    package_filename)
+                if os.path.exists(path):
+                    return path
+    return None
+
+
+# ------------------------------------------------------------------------
+#
+#  Main command-line entry point
+#
+# ------------------------------------------------------------------------
+
+def setuptools_main():
+    return main(command_line = 1)
+
+
+def main(command_line = 0):
+    args = sys.argv[1:]
+    any_failures = 0
+    if command_line:
+        from .CmdLine import parse_command_line
+        options, sources = parse_command_line(args)
+    else:
+        options = CompilationOptions(default_options)
+        sources = args
+
+    if options.show_version:
+        sys.stderr.write("Cython version %s\n" % version)
+    if options.working_path!="":
+        os.chdir(options.working_path)
+    try:
+        result = compile(sources, options)
+        if result.num_errors > 0:
+            any_failures = 1
+    except (EnvironmentError, PyrexError) as e:
+        sys.stderr.write(str(e) + '\n')
+        any_failures = 1
+    if any_failures:
+        sys.exit(1)
+
+
+# ------------------------------------------------------------------------
+#
+#  Set the default options depending on the platform
+#
+# ------------------------------------------------------------------------
+
+default_options = dict(
+    show_version = 0,
+    use_listing_file = 0,
+    errors_to_stderr = 1,
+    cplus = 0,
+    output_file = None,
+    depfile = None,
+    annotate = None,
+    annotate_coverage_xml = None,
+    generate_pxi = 0,
+    capi_reexport_cincludes = 0,
+    working_path = "",
+    timestamps = None,
+    verbose = 0,
+    quiet = 0,
+    compiler_directives = {},
+    embedded_metadata = {},
+    evaluate_tree_assertions = False,
+    emit_linenums = False,
+    relative_path_in_code_position_comments = True,
+    c_line_in_traceback = True,
+    language_level = None,  # warn but default to 2
+    formal_grammar = False,
+    gdb_debug = False,
+    compile_time_env = None,
+    common_utility_include_dir = None,
+    output_dir=None,
+    build_dir=None,
+    cache=None,
+    create_extension=None,
+    module_name=None,
+    np_pythran=False
+)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/MemoryView.py

@@ -0,0 +1,858 @@
+from __future__ import absolute_import
+
+from .Errors import CompileError, error
+from . import ExprNodes
+from .ExprNodes import IntNode, NameNode, AttributeNode
+from . import Options
+from .Code import UtilityCode, TempitaUtilityCode
+from .UtilityCode import CythonUtilityCode
+from . import Buffer
+from . import PyrexTypes
+from . import ModuleNode
+
+START_ERR = "Start must not be given."
+STOP_ERR = "Axis specification only allowed in the 'step' slot."
+STEP_ERR = "Step must be omitted, 1, or a valid specifier."
+BOTH_CF_ERR = "Cannot specify an array that is both C and Fortran contiguous."
+INVALID_ERR = "Invalid axis specification."
+NOT_CIMPORTED_ERR = "Variable was not cimported from cython.view"
+EXPR_ERR = "no expressions allowed in axis spec, only names and literals."
+CF_ERR = "Invalid axis specification for a C/Fortran contiguous array."
+ERR_UNINITIALIZED = ("Cannot check if memoryview %s is initialized without the "
+                     "GIL, consider using initializedcheck(False)")
+
+
+def concat_flags(*flags):
+    return "(%s)" % "|".join(flags)
+
+
+format_flag = "PyBUF_FORMAT"
+
+memview_c_contiguous = "(PyBUF_C_CONTIGUOUS | PyBUF_FORMAT)"
+memview_f_contiguous = "(PyBUF_F_CONTIGUOUS | PyBUF_FORMAT)"
+memview_any_contiguous = "(PyBUF_ANY_CONTIGUOUS | PyBUF_FORMAT)"
+memview_full_access = "PyBUF_FULL_RO"
+#memview_strided_access = "PyBUF_STRIDED_RO"
+memview_strided_access = "PyBUF_RECORDS_RO"
+
+MEMVIEW_DIRECT = '__Pyx_MEMVIEW_DIRECT'
+MEMVIEW_PTR    = '__Pyx_MEMVIEW_PTR'
+MEMVIEW_FULL   = '__Pyx_MEMVIEW_FULL'
+MEMVIEW_CONTIG = '__Pyx_MEMVIEW_CONTIG'
+MEMVIEW_STRIDED= '__Pyx_MEMVIEW_STRIDED'
+MEMVIEW_FOLLOW = '__Pyx_MEMVIEW_FOLLOW'
+
+_spec_to_const = {
+        'direct' : MEMVIEW_DIRECT,
+        'ptr'    : MEMVIEW_PTR,
+        'full'   : MEMVIEW_FULL,
+        'contig' : MEMVIEW_CONTIG,
+        'strided': MEMVIEW_STRIDED,
+        'follow' : MEMVIEW_FOLLOW,
+        }
+
+_spec_to_abbrev = {
+    'direct'  : 'd',
+    'ptr'     : 'p',
+    'full'    : 'f',
+    'contig'  : 'c',
+    'strided' : 's',
+    'follow'  : '_',
+}
+
+memslice_entry_init = "{ 0, 0, { 0 }, { 0 }, { 0 } }"
+
+memview_name = u'memoryview'
+memview_typeptr_cname = '__pyx_memoryview_type'
+memview_objstruct_cname = '__pyx_memoryview_obj'
+memviewslice_cname = u'__Pyx_memviewslice'
+
+
+def put_init_entry(mv_cname, code):
+    code.putln("%s.data = NULL;" % mv_cname)
+    code.putln("%s.memview = NULL;" % mv_cname)
+
+
+#def axes_to_str(axes):
+#    return "".join([access[0].upper()+packing[0] for (access, packing) in axes])
+
+
+def put_acquire_memoryviewslice(lhs_cname, lhs_type, lhs_pos, rhs, code,
+                                have_gil=False, first_assignment=True):
+    "We can avoid decreffing the lhs if we know it is the first assignment"
+    assert rhs.type.is_memoryviewslice
+
+    pretty_rhs = rhs.result_in_temp() or rhs.is_simple()
+    if pretty_rhs:
+        rhstmp = rhs.result()
+    else:
+        rhstmp = code.funcstate.allocate_temp(lhs_type, manage_ref=False)
+        code.putln("%s = %s;" % (rhstmp, rhs.result_as(lhs_type)))
+
+    # Allow uninitialized assignment
+    #code.putln(code.put_error_if_unbound(lhs_pos, rhs.entry))
+    put_assign_to_memviewslice(lhs_cname, rhs, rhstmp, lhs_type, code,
+                               have_gil=have_gil, first_assignment=first_assignment)
+
+    if not pretty_rhs:
+        code.funcstate.release_temp(rhstmp)
+
+
+def put_assign_to_memviewslice(lhs_cname, rhs, rhs_cname, memviewslicetype, code,
+                               have_gil=False, first_assignment=False):
+    if not first_assignment:
+        code.put_xdecref_memoryviewslice(lhs_cname, have_gil=have_gil)
+
+    if not rhs.result_in_temp():
+        rhs.make_owned_memoryviewslice(code)
+
+    code.putln("%s = %s;" % (lhs_cname, rhs_cname))
+
+
+def get_buf_flags(specs):
+    is_c_contig, is_f_contig = is_cf_contig(specs)
+
+    if is_c_contig:
+        return memview_c_contiguous
+    elif is_f_contig:
+        return memview_f_contiguous
+
+    access, packing = zip(*specs)
+
+    if 'full' in access or 'ptr' in access:
+        return memview_full_access
+    else:
+        return memview_strided_access
+
+
+def insert_newaxes(memoryviewtype, n):
+    axes = [('direct', 'strided')] * n
+    axes.extend(memoryviewtype.axes)
+    return PyrexTypes.MemoryViewSliceType(memoryviewtype.dtype, axes)
+
+
+def broadcast_types(src, dst):
+    n = abs(src.ndim - dst.ndim)
+    if src.ndim < dst.ndim:
+        return insert_newaxes(src, n), dst
+    else:
+        return src, insert_newaxes(dst, n)
+
+
+def valid_memslice_dtype(dtype, i=0):
+    """
+    Return whether type dtype can be used as the base type of a
+    memoryview slice.
+
+    We support structs, numeric types and objects
+    """
+    if dtype.is_complex and dtype.real_type.is_int:
+        return False
+
+    if dtype is PyrexTypes.c_bint_type:
+        return False
+
+    if dtype.is_struct and dtype.kind == 'struct':
+        for member in dtype.scope.var_entries:
+            if not valid_memslice_dtype(member.type):
+                return False
+
+        return True
+
+    return (
+        dtype.is_error or
+        # Pointers are not valid (yet)
+        # (dtype.is_ptr and valid_memslice_dtype(dtype.base_type)) or
+        (dtype.is_array and i < 8 and
+         valid_memslice_dtype(dtype.base_type, i + 1)) or
+        dtype.is_numeric or
+        dtype.is_pyobject or
+        dtype.is_fused or # accept this as it will be replaced by specializations later
+        (dtype.is_typedef and valid_memslice_dtype(dtype.typedef_base_type))
+    )
+
+
+class MemoryViewSliceBufferEntry(Buffer.BufferEntry):
+    """
+    May be used during code generation time to be queried for
+    shape/strides/suboffsets attributes, or to perform indexing or slicing.
+    """
+    def __init__(self, entry):
+        self.entry = entry
+        self.type = entry.type
+        self.cname = entry.cname
+
+        self.buf_ptr = "%s.data" % self.cname
+
+        dtype = self.entry.type.dtype
+        self.buf_ptr_type = PyrexTypes.CPtrType(dtype)
+        self.init_attributes()
+
+    def get_buf_suboffsetvars(self):
+        return self._for_all_ndim("%s.suboffsets[%d]")
+
+    def get_buf_stridevars(self):
+        return self._for_all_ndim("%s.strides[%d]")
+
+    def get_buf_shapevars(self):
+        return self._for_all_ndim("%s.shape[%d]")
+
+    def generate_buffer_lookup_code(self, code, index_cnames):
+        axes = [(dim, index_cnames[dim], access, packing)
+                    for dim, (access, packing) in enumerate(self.type.axes)]
+        return self._generate_buffer_lookup_code(code, axes)
+
+    def _generate_buffer_lookup_code(self, code, axes, cast_result=True):
+        """
+        Generate a single expression that indexes the memory view slice
+        in each dimension.
+        """
+        bufp = self.buf_ptr
+        type_decl = self.type.dtype.empty_declaration_code()
+
+        for dim, index, access, packing in axes:
+            shape = "%s.shape[%d]" % (self.cname, dim)
+            stride = "%s.strides[%d]" % (self.cname, dim)
+            suboffset = "%s.suboffsets[%d]" % (self.cname, dim)
+
+            flag = get_memoryview_flag(access, packing)
+
+            if flag in ("generic", "generic_contiguous"):
+                # Note: we cannot do cast tricks to avoid stride multiplication
+                #       for generic_contiguous, as we may have to do (dtype *)
+                #       or (dtype **) arithmetic, we won't know which unless
+                #       we check suboffsets
+                code.globalstate.use_utility_code(memviewslice_index_helpers)
+                bufp = ('__pyx_memviewslice_index_full(%s, %s, %s, %s)' %
+                                            (bufp, index, stride, suboffset))
+
+            elif flag == "indirect":
+                bufp = "(%s + %s * %s)" % (bufp, index, stride)
+                bufp = ("(*((char **) %s) + %s)" % (bufp, suboffset))
+
+            elif flag == "indirect_contiguous":
+                # Note: we do char ** arithmetic
+                bufp = "(*((char **) %s + %s) + %s)" % (bufp, index, suboffset)
+
+            elif flag == "strided":
+                bufp = "(%s + %s * %s)" % (bufp, index, stride)
+
+            else:
+                assert flag == 'contiguous', flag
+                bufp = '((char *) (((%s *) %s) + %s))' % (type_decl, bufp, index)
+
+            bufp = '( /* dim=%d */ %s )' % (dim, bufp)
+
+        if cast_result:
+            return "((%s *) %s)" % (type_decl, bufp)
+
+        return bufp
+
+    def generate_buffer_slice_code(self, code, indices, dst, have_gil,
+                                   have_slices, directives):
+        """
+        Slice a memoryviewslice.
+
+        indices     - list of index nodes. If not a SliceNode, or NoneNode,
+                      then it must be coercible to Py_ssize_t
+
+        Simply call __pyx_memoryview_slice_memviewslice with the right
+        arguments, unless the dimension is omitted or a bare ':', in which
+        case we copy over the shape/strides/suboffsets attributes directly
+        for that dimension.
+        """
+        src = self.cname
+
+        code.putln("%(dst)s.data = %(src)s.data;" % locals())
+        code.putln("%(dst)s.memview = %(src)s.memview;" % locals())
+        code.put_incref_memoryviewslice(dst)
+
+        all_dimensions_direct = all(access == 'direct' for access, packing in self.type.axes)
+        suboffset_dim_temp = []
+
+        def get_suboffset_dim():
+            # create global temp variable at request
+            if not suboffset_dim_temp:
+                suboffset_dim = code.funcstate.allocate_temp(PyrexTypes.c_int_type, manage_ref=False)
+                code.putln("%s = -1;" % suboffset_dim)
+                suboffset_dim_temp.append(suboffset_dim)
+            return suboffset_dim_temp[0]
+
+        dim = -1
+        new_ndim = 0
+        for index in indices:
+            if index.is_none:
+                # newaxis
+                for attrib, value in [('shape', 1), ('strides', 0), ('suboffsets', -1)]:
+                    code.putln("%s.%s[%d] = %d;" % (dst, attrib, new_ndim, value))
+
+                new_ndim += 1
+                continue
+
+            dim += 1
+            access, packing = self.type.axes[dim]
+
+            if isinstance(index, ExprNodes.SliceNode):
+                # slice, unspecified dimension, or part of ellipsis
+                d = dict(locals())
+                for s in "start stop step".split():
+                    idx = getattr(index, s)
+                    have_idx = d['have_' + s] = not idx.is_none
+                    d[s] = idx.result() if have_idx else "0"
+
+                if not (d['have_start'] or d['have_stop'] or d['have_step']):
+                    # full slice (:), simply copy over the extent, stride
+                    # and suboffset. Also update suboffset_dim if needed
+                    d['access'] = access
+                    util_name = "SimpleSlice"
+                else:
+                    util_name = "ToughSlice"
+                    d['error_goto'] = code.error_goto(index.pos)
+
+                new_ndim += 1
+            else:
+                # normal index
+                idx = index.result()
+
+                indirect = access != 'direct'
+                if indirect:
+                    generic = access == 'full'
+                    if new_ndim != 0:
+                        return error(index.pos,
+                                     "All preceding dimensions must be "
+                                     "indexed and not sliced")
+
+                d = dict(
+                    locals(),
+                    wraparound=int(directives['wraparound']),
+                    boundscheck=int(directives['boundscheck']),
+                )
+                if d['boundscheck']:
+                    d['error_goto'] = code.error_goto(index.pos)
+                util_name = "SliceIndex"
+
+            _, impl = TempitaUtilityCode.load_as_string(util_name, "MemoryView_C.c", context=d)
+            code.put(impl)
+
+        if suboffset_dim_temp:
+            code.funcstate.release_temp(suboffset_dim_temp[0])
+
+
+def empty_slice(pos):
+    none = ExprNodes.NoneNode(pos)
+    return ExprNodes.SliceNode(pos, start=none,
+                               stop=none, step=none)
+
+
+def unellipsify(indices, ndim):
+    result = []
+    seen_ellipsis = False
+    have_slices = False
+
+    newaxes = [newaxis for newaxis in indices if newaxis.is_none]
+    n_indices = len(indices) - len(newaxes)
+
+    for index in indices:
+        if isinstance(index, ExprNodes.EllipsisNode):
+            have_slices = True
+            full_slice = empty_slice(index.pos)
+
+            if seen_ellipsis:
+                result.append(full_slice)
+            else:
+                nslices = ndim - n_indices + 1
+                result.extend([full_slice] * nslices)
+                seen_ellipsis = True
+        else:
+            have_slices = have_slices or index.is_slice or index.is_none
+            result.append(index)
+
+    result_length = len(result) - len(newaxes)
+    if result_length < ndim:
+        have_slices = True
+        nslices = ndim - result_length
+        result.extend([empty_slice(indices[-1].pos)] * nslices)
+
+    return have_slices, result, newaxes
+
+
+def get_memoryview_flag(access, packing):
+    if access == 'full' and packing in ('strided', 'follow'):
+        return 'generic'
+    elif access == 'full' and packing == 'contig':
+        return 'generic_contiguous'
+    elif access == 'ptr' and packing in ('strided', 'follow'):
+        return 'indirect'
+    elif access == 'ptr' and packing == 'contig':
+        return 'indirect_contiguous'
+    elif access == 'direct' and packing in ('strided', 'follow'):
+        return 'strided'
+    else:
+        assert (access, packing) == ('direct', 'contig'), (access, packing)
+        return 'contiguous'
+
+
+def get_is_contig_func_name(contig_type, ndim):
+    assert contig_type in ('C', 'F')
+    return "__pyx_memviewslice_is_contig_%s%d" % (contig_type, ndim)
+
+
+def get_is_contig_utility(contig_type, ndim):
+    assert contig_type in ('C', 'F')
+    C = dict(context, ndim=ndim, contig_type=contig_type)
+    utility = load_memview_c_utility("MemviewSliceCheckContig", C, requires=[is_contig_utility])
+    return utility
+
+
+def slice_iter(slice_type, slice_result, ndim, code):
+    if slice_type.is_c_contig or slice_type.is_f_contig:
+        return ContigSliceIter(slice_type, slice_result, ndim, code)
+    else:
+        return StridedSliceIter(slice_type, slice_result, ndim, code)
+
+
+class SliceIter(object):
+    def __init__(self, slice_type, slice_result, ndim, code):
+        self.slice_type = slice_type
+        self.slice_result = slice_result
+        self.code = code
+        self.ndim = ndim
+
+
+class ContigSliceIter(SliceIter):
+    def start_loops(self):
+        code = self.code
+        code.begin_block()
+
+        type_decl = self.slice_type.dtype.empty_declaration_code()
+
+        total_size = ' * '.join("%s.shape[%d]" % (self.slice_result, i)
+                                for i in range(self.ndim))
+        code.putln("Py_ssize_t __pyx_temp_extent = %s;" % total_size)
+        code.putln("Py_ssize_t __pyx_temp_idx;")
+        code.putln("%s *__pyx_temp_pointer = (%s *) %s.data;" % (
+            type_decl, type_decl, self.slice_result))
+        code.putln("for (__pyx_temp_idx = 0; "
+                        "__pyx_temp_idx < __pyx_temp_extent; "
+                        "__pyx_temp_idx++) {")
+
+        return "__pyx_temp_pointer"
+
+    def end_loops(self):
+        self.code.putln("__pyx_temp_pointer += 1;")
+        self.code.putln("}")
+        self.code.end_block()
+
+
+class StridedSliceIter(SliceIter):
+    def start_loops(self):
+        code = self.code
+        code.begin_block()
+
+        for i in range(self.ndim):
+            t = i, self.slice_result, i
+            code.putln("Py_ssize_t __pyx_temp_extent_%d = %s.shape[%d];" % t)
+            code.putln("Py_ssize_t __pyx_temp_stride_%d = %s.strides[%d];" % t)
+            code.putln("char *__pyx_temp_pointer_%d;" % i)
+            code.putln("Py_ssize_t __pyx_temp_idx_%d;" % i)
+
+        code.putln("__pyx_temp_pointer_0 = %s.data;" % self.slice_result)
+
+        for i in range(self.ndim):
+            if i > 0:
+                code.putln("__pyx_temp_pointer_%d = __pyx_temp_pointer_%d;" % (i, i - 1))
+
+            code.putln("for (__pyx_temp_idx_%d = 0; "
+                            "__pyx_temp_idx_%d < __pyx_temp_extent_%d; "
+                            "__pyx_temp_idx_%d++) {" % (i, i, i, i))
+
+        return "__pyx_temp_pointer_%d" % (self.ndim - 1)
+
+    def end_loops(self):
+        code = self.code
+        for i in range(self.ndim - 1, -1, -1):
+            code.putln("__pyx_temp_pointer_%d += __pyx_temp_stride_%d;" % (i, i))
+            code.putln("}")
+
+        code.end_block()
+
+
+def copy_c_or_fortran_cname(memview):
+    if memview.is_c_contig:
+        c_or_f = 'c'
+    else:
+        c_or_f = 'f'
+
+    return "__pyx_memoryview_copy_slice_%s_%s" % (
+            memview.specialization_suffix(), c_or_f)
+
+
+def get_copy_new_utility(pos, from_memview, to_memview):
+    if (from_memview.dtype != to_memview.dtype and
+            not (from_memview.dtype.is_const and from_memview.dtype.const_base_type == to_memview.dtype)):
+        error(pos, "dtypes must be the same!")
+        return
+    if len(from_memview.axes) != len(to_memview.axes):
+        error(pos, "number of dimensions must be same")
+        return
+    if not (to_memview.is_c_contig or to_memview.is_f_contig):
+        error(pos, "to_memview must be c or f contiguous.")
+        return
+
+    for (access, packing) in from_memview.axes:
+        if access != 'direct':
+            error(pos, "cannot handle 'full' or 'ptr' access at this time.")
+            return
+
+    if to_memview.is_c_contig:
+        mode = 'c'
+        contig_flag = memview_c_contiguous
+    elif to_memview.is_f_contig:
+        mode = 'fortran'
+        contig_flag = memview_f_contiguous
+
+    return load_memview_c_utility(
+        "CopyContentsUtility",
+        context=dict(
+            context,
+            mode=mode,
+            dtype_decl=to_memview.dtype.empty_declaration_code(),
+            contig_flag=contig_flag,
+            ndim=to_memview.ndim,
+            func_cname=copy_c_or_fortran_cname(to_memview),
+            dtype_is_object=int(to_memview.dtype.is_pyobject)),
+        requires=[copy_contents_new_utility])
+
+
+def get_axes_specs(env, axes):
+    '''
+    get_axes_specs(env, axes) -> list of (access, packing) specs for each axis.
+    access is one of 'full', 'ptr' or 'direct'
+    packing is one of 'contig', 'strided' or 'follow'
+    '''
+
+    cythonscope = env.global_scope().context.cython_scope
+    cythonscope.load_cythonscope()
+    viewscope = cythonscope.viewscope
+
+    access_specs = tuple([viewscope.lookup(name)
+                    for name in ('full', 'direct', 'ptr')])
+    packing_specs = tuple([viewscope.lookup(name)
+                    for name in ('contig', 'strided', 'follow')])
+
+    is_f_contig, is_c_contig = False, False
+    default_access, default_packing = 'direct', 'strided'
+    cf_access, cf_packing = default_access, 'follow'
+
+    axes_specs = []
+    # analyse all axes.
+    for idx, axis in enumerate(axes):
+        if not axis.start.is_none:
+            raise CompileError(axis.start.pos,  START_ERR)
+
+        if not axis.stop.is_none:
+            raise CompileError(axis.stop.pos, STOP_ERR)
+
+        if axis.step.is_none:
+            axes_specs.append((default_access, default_packing))
+
+        elif isinstance(axis.step, IntNode):
+            # the packing for the ::1 axis is contiguous,
+            # all others are cf_packing.
+            if axis.step.compile_time_value(env) != 1:
+                raise CompileError(axis.step.pos, STEP_ERR)
+
+            axes_specs.append((cf_access, 'cfcontig'))
+
+        elif isinstance(axis.step, (NameNode, AttributeNode)):
+            entry = _get_resolved_spec(env, axis.step)
+            if entry.name in view_constant_to_access_packing:
+                axes_specs.append(view_constant_to_access_packing[entry.name])
+            else:
+                raise CompileError(axis.step.pos, INVALID_ERR)
+
+        else:
+            raise CompileError(axis.step.pos, INVALID_ERR)
+
+    # First, find out if we have a ::1 somewhere
+    contig_dim = 0
+    is_contig = False
+    for idx, (access, packing) in enumerate(axes_specs):
+        if packing == 'cfcontig':
+            if is_contig:
+                raise CompileError(axis.step.pos, BOTH_CF_ERR)
+
+            contig_dim = idx
+            axes_specs[idx] = (access, 'contig')
+            is_contig = True
+
+    if is_contig:
+        # We have a ::1 somewhere, see if we're C or Fortran contiguous
+        if contig_dim == len(axes) - 1:
+            is_c_contig = True
+        else:
+            is_f_contig = True
+
+            if contig_dim and not axes_specs[contig_dim - 1][0] in ('full', 'ptr'):
+                raise CompileError(axes[contig_dim].pos,
+                                   "Fortran contiguous specifier must follow an indirect dimension")
+
+        if is_c_contig:
+            # Contiguous in the last dimension, find the last indirect dimension
+            contig_dim = -1
+            for idx, (access, packing) in enumerate(reversed(axes_specs)):
+                if access in ('ptr', 'full'):
+                    contig_dim = len(axes) - idx - 1
+
+        # Replace 'strided' with 'follow' for any dimension following the last
+        # indirect dimension, the first dimension or the dimension following
+        # the ::1.
+        #               int[::indirect, ::1, :, :]
+        #                                    ^  ^
+        #               int[::indirect, :, :, ::1]
+        #                               ^  ^
+        start = contig_dim + 1
+        stop = len(axes) - is_c_contig
+        for idx, (access, packing) in enumerate(axes_specs[start:stop]):
+            idx = contig_dim + 1 + idx
+            if access != 'direct':
+                raise CompileError(axes[idx].pos,
+                                   "Indirect dimension may not follow "
+                                   "Fortran contiguous dimension")
+            if packing == 'contig':
+                raise CompileError(axes[idx].pos,
+                                   "Dimension may not be contiguous")
+            axes_specs[idx] = (access, cf_packing)
+
+        if is_c_contig:
+            # For C contiguity, we need to fix the 'contig' dimension
+            # after the loop
+            a, p = axes_specs[-1]
+            axes_specs[-1] = a, 'contig'
+
+    validate_axes_specs([axis.start.pos for axis in axes],
+                        axes_specs,
+                        is_c_contig,
+                        is_f_contig)
+
+    return axes_specs
+
+
+def validate_axes(pos, axes):
+    if len(axes) >= Options.buffer_max_dims:
+        error(pos, "More dimensions than the maximum number"
+                   " of buffer dimensions were used.")
+        return False
+
+    return True
+
+
+def is_cf_contig(specs):
+    is_c_contig = is_f_contig = False
+
+    if len(specs) == 1 and specs == [('direct', 'contig')]:
+        is_c_contig = True
+
+    elif (specs[-1] == ('direct','contig') and
+          all(axis == ('direct','follow') for axis in specs[:-1])):
+        # c_contiguous: 'follow', 'follow', ..., 'follow', 'contig'
+        is_c_contig = True
+
+    elif (len(specs) > 1 and
+        specs[0] == ('direct','contig') and
+        all(axis == ('direct','follow') for axis in specs[1:])):
+        # f_contiguous: 'contig', 'follow', 'follow', ..., 'follow'
+        is_f_contig = True
+
+    return is_c_contig, is_f_contig
+
+
+def get_mode(specs):
+    is_c_contig, is_f_contig = is_cf_contig(specs)
+
+    if is_c_contig:
+        return 'c'
+    elif is_f_contig:
+        return 'fortran'
+
+    for access, packing in specs:
+        if access in ('ptr', 'full'):
+            return 'full'
+
+    return 'strided'
+
+view_constant_to_access_packing = {
+    'generic':              ('full',   'strided'),
+    'strided':              ('direct', 'strided'),
+    'indirect':             ('ptr',    'strided'),
+    'generic_contiguous':   ('full',   'contig'),
+    'contiguous':           ('direct', 'contig'),
+    'indirect_contiguous':  ('ptr',    'contig'),
+}
+
+def validate_axes_specs(positions, specs, is_c_contig, is_f_contig):
+
+    packing_specs = ('contig', 'strided', 'follow')
+    access_specs = ('direct', 'ptr', 'full')
+
+    # is_c_contig, is_f_contig = is_cf_contig(specs)
+
+    has_contig = has_follow = has_strided = has_generic_contig = False
+
+    last_indirect_dimension = -1
+    for idx, (access, packing) in enumerate(specs):
+        if access == 'ptr':
+            last_indirect_dimension = idx
+
+    for idx, (pos, (access, packing)) in enumerate(zip(positions, specs)):
+
+        if not (access in access_specs and
+                packing in packing_specs):
+            raise CompileError(pos, "Invalid axes specification.")
+
+        if packing == 'strided':
+            has_strided = True
+        elif packing == 'contig':
+            if has_contig:
+                raise CompileError(pos, "Only one direct contiguous "
+                                        "axis may be specified.")
+
+            valid_contig_dims = last_indirect_dimension + 1, len(specs) - 1
+            if idx not in valid_contig_dims and access != 'ptr':
+                if last_indirect_dimension + 1 != len(specs) - 1:
+                    dims = "dimensions %d and %d" % valid_contig_dims
+                else:
+                    dims = "dimension %d" % valid_contig_dims[0]
+
+                raise CompileError(pos, "Only %s may be contiguous and direct" % dims)
+
+            has_contig = access != 'ptr'
+        elif packing == 'follow':
+            if has_strided:
+                raise CompileError(pos, "A memoryview cannot have both follow and strided axis specifiers.")
+            if not (is_c_contig or is_f_contig):
+                raise CompileError(pos, "Invalid use of the follow specifier.")
+
+        if access in ('ptr', 'full'):
+            has_strided = False
+
+def _get_resolved_spec(env, spec):
+    # spec must be a NameNode or an AttributeNode
+    if isinstance(spec, NameNode):
+        return _resolve_NameNode(env, spec)
+    elif isinstance(spec, AttributeNode):
+        return _resolve_AttributeNode(env, spec)
+    else:
+        raise CompileError(spec.pos, INVALID_ERR)
+
+def _resolve_NameNode(env, node):
+    try:
+        resolved_name = env.lookup(node.name).name
+    except AttributeError:
+        raise CompileError(node.pos, INVALID_ERR)
+
+    viewscope = env.global_scope().context.cython_scope.viewscope
+    entry = viewscope.lookup(resolved_name)
+    if entry is None:
+        raise CompileError(node.pos, NOT_CIMPORTED_ERR)
+
+    return entry
+
+def _resolve_AttributeNode(env, node):
+    path = []
+    while isinstance(node, AttributeNode):
+        path.insert(0, node.attribute)
+        node = node.obj
+    if isinstance(node, NameNode):
+        path.insert(0, node.name)
+    else:
+        raise CompileError(node.pos, EXPR_ERR)
+    modnames = path[:-1]
+    # must be at least 1 module name, o/w not an AttributeNode.
+    assert modnames
+
+    scope = env
+    for modname in modnames:
+        mod = scope.lookup(modname)
+        if not mod or not mod.as_module:
+            raise CompileError(
+                    node.pos, "undeclared name not builtin: %s" % modname)
+        scope = mod.as_module
+
+    entry = scope.lookup(path[-1])
+    if not entry:
+        raise CompileError(node.pos, "No such attribute '%s'" % path[-1])
+
+    return entry
+
+#
+### Utility loading
+#
+
+def load_memview_cy_utility(util_code_name, context=None, **kwargs):
+    return CythonUtilityCode.load(util_code_name, "MemoryView.pyx",
+                                  context=context, **kwargs)
+
+def load_memview_c_utility(util_code_name, context=None, **kwargs):
+    if context is None:
+        return UtilityCode.load(util_code_name, "MemoryView_C.c", **kwargs)
+    else:
+        return TempitaUtilityCode.load(util_code_name, "MemoryView_C.c",
+                                       context=context, **kwargs)
+
+def use_cython_array_utility_code(env):
+    cython_scope = env.global_scope().context.cython_scope
+    cython_scope.load_cythonscope()
+    cython_scope.viewscope.lookup('array_cwrapper').used = True
+
+context = {
+    'memview_struct_name': memview_objstruct_cname,
+    'max_dims': Options.buffer_max_dims,
+    'memviewslice_name': memviewslice_cname,
+    'memslice_init': memslice_entry_init,
+}
+memviewslice_declare_code = load_memview_c_utility(
+        "MemviewSliceStruct",
+        context=context,
+        requires=[])
+
+atomic_utility = load_memview_c_utility("Atomics", context)
+
+memviewslice_init_code = load_memview_c_utility(
+    "MemviewSliceInit",
+    context=dict(context, BUF_MAX_NDIMS=Options.buffer_max_dims),
+    requires=[memviewslice_declare_code,
+              atomic_utility],
+)
+
+memviewslice_index_helpers = load_memview_c_utility("MemviewSliceIndex")
+
+typeinfo_to_format_code = load_memview_cy_utility(
+        "BufferFormatFromTypeInfo", requires=[Buffer._typeinfo_to_format_code])
+
+is_contig_utility = load_memview_c_utility("MemviewSliceIsContig", context)
+overlapping_utility = load_memview_c_utility("OverlappingSlices", context)
+copy_contents_new_utility = load_memview_c_utility(
+    "MemviewSliceCopyTemplate",
+    context,
+    requires=[], # require cython_array_utility_code
+)
+
+view_utility_code = load_memview_cy_utility(
+        "View.MemoryView",
+        context=context,
+        requires=[Buffer.GetAndReleaseBufferUtilityCode(),
+                  Buffer.buffer_struct_declare_code,
+                  Buffer.buffer_formats_declare_code,
+                  memviewslice_init_code,
+                  is_contig_utility,
+                  overlapping_utility,
+                  copy_contents_new_utility,
+                  ModuleNode.capsule_utility_code],
+)
+view_utility_whitelist = ('array', 'memoryview', 'array_cwrapper',
+                          'generic', 'strided', 'indirect', 'contiguous',
+                          'indirect_contiguous')
+
+memviewslice_declare_code.requires.append(view_utility_code)
+copy_contents_new_utility.requires.append(view_utility_code)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Naming.py

@@ -0,0 +1,162 @@
+#
+#   C naming conventions
+#
+#
+#   Prefixes for generating C names.
+#   Collected here to facilitate ensuring uniqueness.
+#
+
+pyrex_prefix    = "__pyx_"
+
+
+codewriter_temp_prefix = pyrex_prefix + "t_"
+
+temp_prefix       = u"__cyt_"
+
+builtin_prefix    = pyrex_prefix + "builtin_"
+arg_prefix        = pyrex_prefix + "arg_"
+funcdoc_prefix    = pyrex_prefix + "doc_"
+enum_prefix       = pyrex_prefix + "e_"
+func_prefix       = pyrex_prefix + "f_"
+func_prefix_api   = pyrex_prefix + "api_f_"
+pyfunc_prefix     = pyrex_prefix + "pf_"
+pywrap_prefix     = pyrex_prefix + "pw_"
+genbody_prefix    = pyrex_prefix + "gb_"
+gstab_prefix      = pyrex_prefix + "getsets_"
+prop_get_prefix   = pyrex_prefix + "getprop_"
+const_prefix      = pyrex_prefix + "k_"
+py_const_prefix   = pyrex_prefix + "kp_"
+label_prefix      = pyrex_prefix + "L"
+pymethdef_prefix  = pyrex_prefix + "mdef_"
+method_wrapper_prefix = pyrex_prefix + "specialmethod_"
+methtab_prefix    = pyrex_prefix + "methods_"
+memtab_prefix     = pyrex_prefix + "members_"
+objstruct_prefix  = pyrex_prefix + "obj_"
+typeptr_prefix    = pyrex_prefix + "ptype_"
+prop_set_prefix   = pyrex_prefix + "setprop_"
+type_prefix       = pyrex_prefix + "t_"
+typeobj_prefix    = pyrex_prefix + "type_"
+var_prefix        = pyrex_prefix + "v_"
+varptr_prefix     = pyrex_prefix + "vp_"
+varptr_prefix_api = pyrex_prefix + "api_vp_"
+wrapperbase_prefix= pyrex_prefix + "wrapperbase_"
+pybuffernd_prefix   = pyrex_prefix + "pybuffernd_"
+pybufferstruct_prefix  = pyrex_prefix + "pybuffer_"
+vtable_prefix     = pyrex_prefix + "vtable_"
+vtabptr_prefix    = pyrex_prefix + "vtabptr_"
+vtabstruct_prefix = pyrex_prefix + "vtabstruct_"
+opt_arg_prefix    = pyrex_prefix + "opt_args_"
+convert_func_prefix = pyrex_prefix + "convert_"
+closure_scope_prefix = pyrex_prefix + "scope_"
+closure_class_prefix = pyrex_prefix + "scope_struct_"
+lambda_func_prefix = pyrex_prefix + "lambda_"
+module_is_main   = pyrex_prefix + "module_is_main_"
+defaults_struct_prefix = pyrex_prefix + "defaults"
+dynamic_args_cname = pyrex_prefix + "dynamic_args"
+
+interned_prefixes = {
+    'str': pyrex_prefix + "n_",
+    'int': pyrex_prefix + "int_",
+    'float': pyrex_prefix + "float_",
+    'tuple': pyrex_prefix + "tuple_",
+    'codeobj': pyrex_prefix + "codeobj_",
+    'slice': pyrex_prefix + "slice_",
+    'ustring': pyrex_prefix + "ustring_",
+    'umethod': pyrex_prefix + "umethod_",
+}
+
+ctuple_type_prefix = pyrex_prefix + "ctuple_"
+args_cname       = pyrex_prefix + "args"
+generator_cname  = pyrex_prefix + "generator"
+sent_value_cname = pyrex_prefix + "sent_value"
+pykwdlist_cname  = pyrex_prefix + "pyargnames"
+obj_base_cname   = pyrex_prefix + "base"
+builtins_cname   = pyrex_prefix + "b"
+preimport_cname  = pyrex_prefix + "i"
+moddict_cname    = pyrex_prefix + "d"
+dummy_cname      = pyrex_prefix + "dummy"
+filename_cname   = pyrex_prefix + "filename"
+modulename_cname = pyrex_prefix + "modulename"
+filetable_cname  = pyrex_prefix + "f"
+intern_tab_cname = pyrex_prefix + "intern_tab"
+kwds_cname       = pyrex_prefix + "kwds"
+lineno_cname     = pyrex_prefix + "lineno"
+clineno_cname    = pyrex_prefix + "clineno"
+cfilenm_cname    = pyrex_prefix + "cfilenm"
+local_tstate_cname = pyrex_prefix + "tstate"
+module_cname     = pyrex_prefix + "m"
+moddoc_cname     = pyrex_prefix + "mdoc"
+methtable_cname  = pyrex_prefix + "methods"
+retval_cname     = pyrex_prefix + "r"
+reqd_kwds_cname  = pyrex_prefix + "reqd_kwds"
+self_cname       = pyrex_prefix + "self"
+stringtab_cname  = pyrex_prefix + "string_tab"
+vtabslot_cname   = pyrex_prefix + "vtab"
+c_api_tab_cname  = pyrex_prefix + "c_api_tab"
+gilstate_cname   = pyrex_prefix + "state"
+skip_dispatch_cname = pyrex_prefix + "skip_dispatch"
+empty_tuple      = pyrex_prefix + "empty_tuple"
+empty_bytes      = pyrex_prefix + "empty_bytes"
+empty_unicode	 = pyrex_prefix + "empty_unicode"
+print_function   = pyrex_prefix + "print"
+print_function_kwargs   = pyrex_prefix + "print_kwargs"
+cleanup_cname    = pyrex_prefix + "module_cleanup"
+pymoduledef_cname = pyrex_prefix + "moduledef"
+pymoduledef_slots_cname = pyrex_prefix + "moduledef_slots"
+pymodinit_module_arg = pyrex_prefix + "pyinit_module"
+pymodule_create_func_cname = pyrex_prefix + "pymod_create"
+pymodule_exec_func_cname = pyrex_prefix + "pymod_exec"
+optional_args_cname = pyrex_prefix + "optional_args"
+import_star      = pyrex_prefix + "import_star"
+import_star_set  = pyrex_prefix + "import_star_set"
+outer_scope_cname= pyrex_prefix + "outer_scope"
+cur_scope_cname  = pyrex_prefix + "cur_scope"
+enc_scope_cname  = pyrex_prefix + "enc_scope"
+frame_cname      = pyrex_prefix + "frame"
+frame_code_cname = pyrex_prefix + "frame_code"
+binding_cfunc    = pyrex_prefix + "binding_PyCFunctionType"
+fused_func_prefix = pyrex_prefix + 'fuse_'
+quick_temp_cname = pyrex_prefix + "temp" # temp variable for quick'n'dirty temping
+tp_dict_version_temp = pyrex_prefix + "tp_dict_version"
+obj_dict_version_temp = pyrex_prefix + "obj_dict_version"
+type_dict_guard_temp = pyrex_prefix + "type_dict_guard"
+cython_runtime_cname   = pyrex_prefix + "cython_runtime"
+
+global_code_object_cache_find = pyrex_prefix + 'find_code_object'
+global_code_object_cache_insert = pyrex_prefix + 'insert_code_object'
+
+genexpr_id_ref = 'genexpr'
+freelist_name  = 'freelist'
+freecount_name = 'freecount'
+
+line_c_macro = "__LINE__"
+
+file_c_macro = "__FILE__"
+
+extern_c_macro  = pyrex_prefix.upper() + "EXTERN_C"
+
+exc_type_name   = pyrex_prefix + "exc_type"
+exc_value_name  = pyrex_prefix + "exc_value"
+exc_tb_name     = pyrex_prefix + "exc_tb"
+exc_lineno_name = pyrex_prefix + "exc_lineno"
+
+parallel_exc_type = pyrex_prefix + "parallel_exc_type"
+parallel_exc_value = pyrex_prefix + "parallel_exc_value"
+parallel_exc_tb = pyrex_prefix + "parallel_exc_tb"
+parallel_filename = pyrex_prefix + "parallel_filename"
+parallel_lineno = pyrex_prefix + "parallel_lineno"
+parallel_clineno = pyrex_prefix + "parallel_clineno"
+parallel_why = pyrex_prefix + "parallel_why"
+
+exc_vars = (exc_type_name, exc_value_name, exc_tb_name)
+
+api_name        = pyrex_prefix + "capi__"
+
+h_guard_prefix   = "__PYX_HAVE__"
+api_guard_prefix = "__PYX_HAVE_API__"
+api_func_guard   = "__PYX_HAVE_API_FUNC_"
+
+PYX_NAN          = "__PYX_NAN()"
+
+def py_version_hex(major, minor=0, micro=0, release_level=0, release_serial=0):
+    return (major << 24) | (minor << 16) | (micro << 8) | (release_level << 4) | (release_serial)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Options.py

@@ -0,0 +1,552 @@
+#
+#  Cython - Compilation-wide options and pragma declarations
+#
+
+from __future__ import absolute_import
+
+
+class ShouldBeFromDirective(object):
+
+    known_directives = []
+
+    def __init__(self, options_name, directive_name=None, disallow=False):
+        self.options_name = options_name
+        self.directive_name = directive_name or options_name
+        self.disallow = disallow
+        self.known_directives.append(self)
+
+    def __nonzero__(self):
+        self._bad_access()
+
+    def __int__(self):
+        self._bad_access()
+
+    def _bad_access(self):
+        raise RuntimeError(repr(self))
+
+    def __repr__(self):
+        return (
+        "Illegal access of '%s' from Options module rather than directive '%s'"
+        % (self.options_name, self.directive_name))
+
+
+"""
+The members of this module are documented using autodata in
+Cython/docs/src/reference/compilation.rst.
+See http://www.sphinx-doc.org/en/master/ext/autodoc.html#directive-autoattribute
+for how autodata works.
+Descriptions of those members should start with a #:
+Donc forget to keep the docs in sync by removing and adding
+the members in both this file and the .rst file.
+"""
+
+#: Whether or not to include docstring in the Python extension. If False, the binary size
+#: will be smaller, but the ``__doc__`` attribute of any class or function will be an
+#: empty string.
+docstrings = True
+
+#: Embed the source code position in the docstrings of functions and classes.
+embed_pos_in_docstring = False
+
+#: Copy the original source code line by line into C code comments
+#: in the generated code file to help with understanding the output.
+#: This is also required for coverage analysis.
+emit_code_comments = True
+
+# undocumented
+pre_import = None
+
+#: Decref global variables in each module on exit for garbage collection.
+#: 0: None, 1+: interned objects, 2+: cdef globals, 3+: types objects
+#: Mostly for reducing noise in Valgrind as it typically executes at process exit
+#: (when all memory will be reclaimed anyways).
+#: Note that directly or indirectly executed cleanup code that makes use of global
+#: variables or types may no longer be safe when enabling the respective level since
+#: there is no guaranteed order in which the (reference counted) objects will
+#: be cleaned up.  The order can change due to live references and reference cycles.
+generate_cleanup_code = False
+
+#: Should tp_clear() set object fields to None instead of clearing them to NULL?
+clear_to_none = True
+
+#: Generate an annotated HTML version of the input source files for debugging and optimisation purposes.
+#: This has the same effect as the ``annotate`` argument in :func:`cythonize`.
+annotate = False
+
+# When annotating source files in HTML, include coverage information from
+# this file.
+annotate_coverage_xml = None
+
+#: This will abort the compilation on the first error occurred rather than trying
+#: to keep going and printing further error messages.
+fast_fail = False
+
+#: Turn all warnings into errors.
+warning_errors = False
+
+#: Make unknown names an error.  Python raises a NameError when
+#: encountering unknown names at runtime, whereas this option makes
+#: them a compile time error.  If you want full Python compatibility,
+#: you should disable this option and also 'cache_builtins'.
+error_on_unknown_names = True
+
+#: Make uninitialized local variable reference a compile time error.
+#: Python raises UnboundLocalError at runtime, whereas this option makes
+#: them a compile time error. Note that this option affects only variables
+#: of "python object" type.
+error_on_uninitialized = True
+
+#: This will convert statements of the form ``for i in range(...)``
+#: to ``for i from ...`` when ``i`` is a C integer type, and the direction
+#: (i.e. sign of step) can be determined.
+#: WARNING: This may change the semantics if the range causes assignment to
+#: i to overflow. Specifically, if this option is set, an error will be
+#: raised before the loop is entered, whereas without this option the loop
+#: will execute until an overflowing value is encountered.
+convert_range = True
+
+#: Perform lookups on builtin names only once, at module initialisation
+#: time.  This will prevent the module from getting imported if a
+#: builtin name that it uses cannot be found during initialisation.
+#: Default is True.
+#: Note that some legacy builtins are automatically remapped
+#: from their Python 2 names to their Python 3 names by Cython
+#: when building in Python 3.x,
+#: so that they do not get in the way even if this option is enabled.
+cache_builtins = True
+
+#: Generate branch prediction hints to speed up error handling etc.
+gcc_branch_hints = True
+
+#: Enable this to allow one to write ``your_module.foo = ...`` to overwrite the
+#: definition if the cpdef function foo, at the cost of an extra dictionary
+#: lookup on every call.
+#: If this is false it generates only the Python wrapper and no override check.
+lookup_module_cpdef = False
+
+#: Whether or not to embed the Python interpreter, for use in making a
+#: standalone executable or calling from external libraries.
+#: This will provide a C function which initialises the interpreter and
+#: executes the body of this module.
+#: See `this demo <https://github.com/cython/cython/tree/master/Demos/embed>`_
+#: for a concrete example.
+#: If true, the initialisation function is the C main() function, but
+#: this option can also be set to a non-empty string to provide a function name explicitly.
+#: Default is False.
+embed = None
+
+# In previous iterations of Cython, globals() gave the first non-Cython module
+# globals in the call stack.  Sage relies on this behavior for variable injection.
+old_style_globals = ShouldBeFromDirective('old_style_globals')
+
+#: Allows cimporting from a pyx file without a pxd file.
+cimport_from_pyx = False
+
+#: Maximum number of dimensions for buffers -- set lower than number of
+#: dimensions in numpy, as
+#: slices are passed by value and involve a lot of copying.
+buffer_max_dims = 8
+
+#: Number of function closure instances to keep in a freelist (0: no freelists)
+closure_freelist_size = 8
+
+
+def get_directive_defaults():
+    # To add an item to this list, all accesses should be changed to use the new
+    # directive, and the global option itself should be set to an instance of
+    # ShouldBeFromDirective.
+    for old_option in ShouldBeFromDirective.known_directives:
+        value = globals().get(old_option.options_name)
+        assert old_option.directive_name in _directive_defaults
+        if not isinstance(value, ShouldBeFromDirective):
+            if old_option.disallow:
+                raise RuntimeError(
+                    "Option '%s' must be set from directive '%s'" % (
+                    old_option.option_name, old_option.directive_name))
+            else:
+                # Warn?
+                _directive_defaults[old_option.directive_name] = value
+    return _directive_defaults
+
+# Declare compiler directives
+_directive_defaults = {
+    'boundscheck' : True,
+    'nonecheck' : False,
+    'initializedcheck' : True,
+    'embedsignature' : False,
+    'auto_cpdef': False,
+    'auto_pickle': None,
+    'cdivision': False,  # was True before 0.12
+    'cdivision_warnings': False,
+    'c_api_binop_methods': True,
+    'cpow': True,
+    'overflowcheck': False,
+    'overflowcheck.fold': True,
+    'always_allow_keywords': False,
+    'allow_none_for_extension_args': True,
+    'wraparound' : True,
+    'ccomplex' : False,  # use C99/C++ for complex types and arith
+    'callspec' : "",
+    'nogil' : False,
+    'profile': False,
+    'linetrace': False,
+    'emit_code_comments': True,  # copy original source code into C code comments
+    'annotation_typing': True,  # read type declarations from Python function annotations
+    'infer_types': None,
+    'infer_types.verbose': False,
+    'autotestdict': True,
+    'autotestdict.cdef': False,
+    'autotestdict.all': False,
+    'language_level': None,
+    'fast_getattr': False,  # Undocumented until we come up with a better way to handle this everywhere.
+    'py2_import': False,  # For backward compatibility of Cython's source code in Py3 source mode
+    'preliminary_late_includes_cy28': False,  # Temporary directive in 0.28, to be removed in a later version (see GH#2079).
+    'iterable_coroutine': False,  # Make async coroutines backwards compatible with the old asyncio yield-from syntax.
+    'c_string_type': 'bytes',
+    'c_string_encoding': '',
+    'type_version_tag': True,  # enables Py_TPFLAGS_HAVE_VERSION_TAG on extension types
+    'unraisable_tracebacks': True,
+    'old_style_globals': False,
+    'np_pythran': False,
+    'fast_gil': False,
+
+    # set __file__ and/or __path__ to known source/target path at import time (instead of not having them available)
+    'set_initial_path' : None,  # SOURCEFILE or "/full/path/to/module"
+
+    'warn': None,
+    'warn.undeclared': False,
+    'warn.unreachable': True,
+    'warn.maybe_uninitialized': False,
+    'warn.unused': False,
+    'warn.unused_arg': False,
+    'warn.unused_result': False,
+    'warn.multiple_declarators': True,
+
+# optimizations
+    'optimize.inline_defnode_calls': True,
+    'optimize.unpack_method_calls': True,  # increases code size when True
+    'optimize.unpack_method_calls_in_pyinit': False,  # uselessly increases code size when True
+    'optimize.use_switch': True,
+
+# remove unreachable code
+    'remove_unreachable': True,
+
+# control flow debug directives
+    'control_flow.dot_output': "",  # Graphviz output filename
+    'control_flow.dot_annotate_defs': False,  # Annotate definitions
+
+# test support
+    'test_assert_path_exists' : [],
+    'test_fail_if_path_exists' : [],
+
+# experimental, subject to change
+    'binding': None,
+
+    'formal_grammar': False,
+}
+
+# Extra warning directives
+extra_warnings = {
+    'warn.maybe_uninitialized': True,
+    'warn.unreachable': True,
+    'warn.unused': True,
+}
+
+def one_of(*args):
+    def validate(name, value):
+        if value not in args:
+            raise ValueError("%s directive must be one of %s, got '%s'" % (
+                name, args, value))
+        else:
+            return value
+    return validate
+
+
+def normalise_encoding_name(option_name, encoding):
+    """
+    >>> normalise_encoding_name('c_string_encoding', 'ascii')
+    'ascii'
+    >>> normalise_encoding_name('c_string_encoding', 'AsCIi')
+    'ascii'
+    >>> normalise_encoding_name('c_string_encoding', 'us-ascii')
+    'ascii'
+    >>> normalise_encoding_name('c_string_encoding', 'utF8')
+    'utf8'
+    >>> normalise_encoding_name('c_string_encoding', 'utF-8')
+    'utf8'
+    >>> normalise_encoding_name('c_string_encoding', 'deFAuLT')
+    'default'
+    >>> normalise_encoding_name('c_string_encoding', 'default')
+    'default'
+    >>> normalise_encoding_name('c_string_encoding', 'SeriousLyNoSuch--Encoding')
+    'SeriousLyNoSuch--Encoding'
+    """
+    if not encoding:
+        return ''
+    if encoding.lower() in ('default', 'ascii', 'utf8'):
+        return encoding.lower()
+    import codecs
+    try:
+        decoder = codecs.getdecoder(encoding)
+    except LookupError:
+        return encoding  # may exists at runtime ...
+    for name in ('ascii', 'utf8'):
+        if codecs.getdecoder(name) == decoder:
+            return name
+    return encoding
+
+
+# Override types possibilities above, if needed
+directive_types = {
+    'language_level': str,  # values can be None/2/3/'3str', where None == 2+warning
+    'auto_pickle': bool,
+    'locals': dict,
+    'final' : bool,  # final cdef classes and methods
+    'nogil' : bool,
+    'internal' : bool,  # cdef class visibility in the module dict
+    'infer_types' : bool,  # values can be True/None/False
+    'binding' : bool,
+    'cfunc' : None,  # decorators do not take directive value
+    'ccall' : None,
+    'inline' : None,
+    'staticmethod' : None,
+    'cclass' : None,
+    'no_gc_clear' : bool,
+    'no_gc' : bool,
+    'returns' : type,
+    'exceptval': type,  # actually (type, check=True/False), but has its own parser
+    'set_initial_path': str,
+    'freelist': int,
+    'c_string_type': one_of('bytes', 'bytearray', 'str', 'unicode'),
+    'c_string_encoding': normalise_encoding_name,
+    'cpow': bool
+}
+
+for key, val in _directive_defaults.items():
+    if key not in directive_types:
+        directive_types[key] = type(val)
+
+directive_scopes = {  # defaults to available everywhere
+    # 'module', 'function', 'class', 'with statement'
+    'auto_pickle': ('module', 'cclass'),
+    'final' : ('cclass', 'function'),
+    'nogil' : ('function', 'with statement'),
+    'inline' : ('function',),
+    'cfunc' : ('function', 'with statement'),
+    'ccall' : ('function', 'with statement'),
+    'returns' : ('function',),
+    'exceptval' : ('function',),
+    'locals' : ('function',),
+    'staticmethod' : ('function',),  # FIXME: analysis currently lacks more specific function scope
+    'no_gc_clear' : ('cclass',),
+    'no_gc' : ('cclass',),
+    'internal' : ('cclass',),
+    'cclass' : ('class', 'cclass', 'with statement'),
+    'autotestdict' : ('module',),
+    'autotestdict.all' : ('module',),
+    'autotestdict.cdef' : ('module',),
+    'set_initial_path' : ('module',),
+    'test_assert_path_exists' : ('function', 'class', 'cclass'),
+    'test_fail_if_path_exists' : ('function', 'class', 'cclass'),
+    'freelist': ('cclass',),
+    'emit_code_comments': ('module',),
+    'annotation_typing': ('module',),  # FIXME: analysis currently lacks more specific function scope
+    # Avoid scope-specific to/from_py_functions for c_string.
+    'c_string_type': ('module',),
+    'c_string_encoding': ('module',),
+    'type_version_tag': ('module', 'cclass'),
+    'language_level': ('module',),
+    # globals() could conceivably be controlled at a finer granularity,
+    # but that would complicate the implementation
+    'old_style_globals': ('module',),
+    'np_pythran': ('module',),
+    'fast_gil': ('module',),
+    'iterable_coroutine': ('module', 'function'),
+}
+
+
+def parse_directive_value(name, value, relaxed_bool=False):
+    """
+    Parses value as an option value for the given name and returns
+    the interpreted value. None is returned if the option does not exist.
+
+    >>> print(parse_directive_value('nonexisting', 'asdf asdfd'))
+    None
+    >>> parse_directive_value('boundscheck', 'True')
+    True
+    >>> parse_directive_value('boundscheck', 'true')
+    Traceback (most recent call last):
+       ...
+    ValueError: boundscheck directive must be set to True or False, got 'true'
+
+    >>> parse_directive_value('c_string_encoding', 'us-ascii')
+    'ascii'
+    >>> parse_directive_value('c_string_type', 'str')
+    'str'
+    >>> parse_directive_value('c_string_type', 'bytes')
+    'bytes'
+    >>> parse_directive_value('c_string_type', 'bytearray')
+    'bytearray'
+    >>> parse_directive_value('c_string_type', 'unicode')
+    'unicode'
+    >>> parse_directive_value('c_string_type', 'unnicode')
+    Traceback (most recent call last):
+    ValueError: c_string_type directive must be one of ('bytes', 'bytearray', 'str', 'unicode'), got 'unnicode'
+    """
+    type = directive_types.get(name)
+    if not type:
+        return None
+    orig_value = value
+    if type is bool:
+        value = str(value)
+        if value == 'True':
+            return True
+        if value == 'False':
+            return False
+        if relaxed_bool:
+            value = value.lower()
+            if value in ("true", "yes"):
+                return True
+            elif value in ("false", "no"):
+                return False
+        raise ValueError("%s directive must be set to True or False, got '%s'" % (
+            name, orig_value))
+    elif type is int:
+        try:
+            return int(value)
+        except ValueError:
+            raise ValueError("%s directive must be set to an integer, got '%s'" % (
+                name, orig_value))
+    elif type is str:
+        return str(value)
+    elif callable(type):
+        return type(name, value)
+    else:
+        assert False
+
+
+def parse_directive_list(s, relaxed_bool=False, ignore_unknown=False,
+                         current_settings=None):
+    """
+    Parses a comma-separated list of pragma options. Whitespace
+    is not considered.
+
+    >>> parse_directive_list('      ')
+    {}
+    >>> (parse_directive_list('boundscheck=True') ==
+    ... {'boundscheck': True})
+    True
+    >>> parse_directive_list('  asdf')
+    Traceback (most recent call last):
+       ...
+    ValueError: Expected "=" in option "asdf"
+    >>> parse_directive_list('boundscheck=hey')
+    Traceback (most recent call last):
+       ...
+    ValueError: boundscheck directive must be set to True or False, got 'hey'
+    >>> parse_directive_list('unknown=True')
+    Traceback (most recent call last):
+       ...
+    ValueError: Unknown option: "unknown"
+    >>> warnings = parse_directive_list('warn.all=True')
+    >>> len(warnings) > 1
+    True
+    >>> sum(warnings.values()) == len(warnings)  # all true.
+    True
+    """
+    if current_settings is None:
+        result = {}
+    else:
+        result = current_settings
+    for item in s.split(','):
+        item = item.strip()
+        if not item:
+            continue
+        if '=' not in item:
+            raise ValueError('Expected "=" in option "%s"' % item)
+        name, value = [s.strip() for s in item.strip().split('=', 1)]
+        if name not in _directive_defaults:
+            found = False
+            if name.endswith('.all'):
+                prefix = name[:-3]
+                for directive in _directive_defaults:
+                    if directive.startswith(prefix):
+                        found = True
+                        parsed_value = parse_directive_value(directive, value, relaxed_bool=relaxed_bool)
+                        result[directive] = parsed_value
+            if not found and not ignore_unknown:
+                raise ValueError('Unknown option: "%s"' % name)
+        else:
+            parsed_value = parse_directive_value(name, value, relaxed_bool=relaxed_bool)
+            result[name] = parsed_value
+    return result
+
+
+def parse_variable_value(value):
+    """
+    Parses value as an option value for the given name and returns
+    the interpreted value.
+
+    >>> parse_variable_value('True')
+    True
+    >>> parse_variable_value('true')
+    'true'
+    >>> parse_variable_value('us-ascii')
+    'us-ascii'
+    >>> parse_variable_value('str')
+    'str'
+    >>> parse_variable_value('123')
+    123
+    >>> parse_variable_value('1.23')
+    1.23
+
+    """
+    if value == "True":
+        return True
+    elif value == "False":
+        return False
+    elif value == "None":
+        return None
+    elif value.isdigit():
+        return int(value)
+    else:
+        try:
+            value = float(value)
+        except Exception:
+            # Not a float
+            pass
+        return value
+
+
+def parse_compile_time_env(s, current_settings=None):
+    """
+    Parses a comma-separated list of pragma options. Whitespace
+    is not considered.
+
+    >>> parse_compile_time_env('      ')
+    {}
+    >>> (parse_compile_time_env('HAVE_OPENMP=True') ==
+    ... {'HAVE_OPENMP': True})
+    True
+    >>> parse_compile_time_env('  asdf')
+    Traceback (most recent call last):
+       ...
+    ValueError: Expected "=" in option "asdf"
+    >>> parse_compile_time_env('NUM_THREADS=4') == {'NUM_THREADS': 4}
+    True
+    >>> parse_compile_time_env('unknown=anything') == {'unknown': 'anything'}
+    True
+    """
+    if current_settings is None:
+        result = {}
+    else:
+        result = current_settings
+    for item in s.split(','):
+        item = item.strip()
+        if not item:
+            continue
+        if '=' not in item:
+            raise ValueError('Expected "=" in option "%s"' % item)
+        name, value = [s.strip() for s in item.split('=', 1)]
+        result[name] = parse_variable_value(value)
+    return result

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/ParseTreeTransforms.pxd

@@ -0,0 +1,82 @@
+
+from __future__ import absolute_import
+
+cimport cython
+
+from .Visitor cimport (
+    CythonTransform, VisitorTransform, TreeVisitor,
+    ScopeTrackingTransform, EnvTransform)
+
+cdef class SkipDeclarations: # (object):
+    pass
+
+cdef class NormalizeTree(CythonTransform):
+    cdef bint is_in_statlist
+    cdef bint is_in_expr
+    cpdef visit_StatNode(self, node, is_listcontainer=*)
+
+cdef class PostParse(ScopeTrackingTransform):
+    cdef dict specialattribute_handlers
+    cdef size_t lambda_counter
+    cdef size_t genexpr_counter
+    cdef _visit_assignment_node(self, node, list expr_list)
+
+
+#def eliminate_rhs_duplicates(list expr_list_list, list ref_node_sequence)
+#def sort_common_subsequences(list items)
+@cython.locals(starred_targets=Py_ssize_t, lhs_size=Py_ssize_t, rhs_size=Py_ssize_t)
+cdef flatten_parallel_assignments(list input, list output)
+cdef map_starred_assignment(list lhs_targets, list starred_assignments, list lhs_args, list rhs_args)
+
+#class PxdPostParse(CythonTransform, SkipDeclarations):
+#class InterpretCompilerDirectives(CythonTransform, SkipDeclarations):
+#class WithTransform(CythonTransform, SkipDeclarations):
+#class DecoratorTransform(CythonTransform, SkipDeclarations):
+
+#class AnalyseDeclarationsTransform(EnvTransform):
+
+cdef class AnalyseExpressionsTransform(CythonTransform):
+    pass
+
+cdef class ExpandInplaceOperators(EnvTransform):
+    pass
+
+cdef class AlignFunctionDefinitions(CythonTransform):
+    cdef dict directives
+    cdef set imported_names
+    cdef object scope
+
+@cython.final
+cdef class YieldNodeCollector(TreeVisitor):
+    cdef public list yields
+    cdef public list returns
+    cdef public list finallys
+    cdef public list excepts
+    cdef public bint has_return_value
+    cdef public bint has_yield
+    cdef public bint has_await
+
+@cython.final
+cdef class MarkClosureVisitor(CythonTransform):
+    cdef bint needs_closure
+
+@cython.final
+cdef class CreateClosureClasses(CythonTransform):
+    cdef list path
+    cdef bint in_lambda
+    cdef module_scope
+    cdef generator_class
+
+    cdef create_class_from_scope(self, node, target_module_scope, inner_node=*)
+    cdef find_entries_used_in_closures(self, node)
+
+#cdef class InjectGilHandling(VisitorTransform, SkipDeclarations):
+#    cdef bint nogil
+
+cdef class GilCheck(VisitorTransform):
+    cdef list env_stack
+    cdef bint nogil
+    cdef bint nogil_declarator_only
+
+cdef class TransformBuiltinMethods(EnvTransform):
+    cdef visit_cython_attribute(self, node)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Parsing.pxd

@@ -0,0 +1,199 @@
+# We declare all of these here to type the first argument.
+
+from __future__ import absolute_import
+
+cimport cython
+from .Scanning cimport PyrexScanner
+
+ctypedef object (*p_sub_expr_func)(PyrexScanner obj)
+
+# entry points
+
+cpdef p_module(PyrexScanner s, pxd, full_module_name, ctx=*)
+cpdef p_code(PyrexScanner s, level= *, ctx=*)
+
+# internal parser states
+
+cdef p_ident(PyrexScanner s, message =*)
+cdef p_ident_list(PyrexScanner s)
+
+cdef tuple p_binop_operator(PyrexScanner s)
+cdef p_binop_expr(PyrexScanner s, ops, p_sub_expr_func p_sub_expr)
+cdef p_lambdef(PyrexScanner s, bint allow_conditional=*)
+cdef p_lambdef_nocond(PyrexScanner s)
+cdef p_test(PyrexScanner s)
+cdef p_test_nocond(PyrexScanner s)
+cdef p_or_test(PyrexScanner s)
+cdef p_rassoc_binop_expr(PyrexScanner s, ops, p_sub_expr_func p_subexpr)
+cdef p_and_test(PyrexScanner s)
+cdef p_not_test(PyrexScanner s)
+cdef p_comparison(PyrexScanner s)
+cdef p_test_or_starred_expr(PyrexScanner s)
+cdef p_starred_expr(PyrexScanner s)
+cdef p_cascaded_cmp(PyrexScanner s)
+cdef p_cmp_op(PyrexScanner s)
+cdef p_bit_expr(PyrexScanner s)
+cdef p_xor_expr(PyrexScanner s)
+cdef p_and_expr(PyrexScanner s)
+cdef p_shift_expr(PyrexScanner s)
+cdef p_arith_expr(PyrexScanner s)
+cdef p_term(PyrexScanner s)
+cdef p_factor(PyrexScanner s)
+cdef _p_factor(PyrexScanner s)
+cdef p_typecast(PyrexScanner s)
+cdef p_sizeof(PyrexScanner s)
+cdef p_yield_expression(PyrexScanner s)
+cdef p_yield_statement(PyrexScanner s)
+cdef p_async_statement(PyrexScanner s, ctx, decorators)
+cdef p_power(PyrexScanner s)
+cdef p_new_expr(PyrexScanner s)
+cdef p_trailer(PyrexScanner s, node1)
+cdef p_call_parse_args(PyrexScanner s, bint allow_genexp = *)
+cdef p_call_build_packed_args(pos, positional_args, keyword_args)
+cdef p_call(PyrexScanner s, function)
+cdef p_index(PyrexScanner s, base)
+cdef tuple p_subscript_list(PyrexScanner s)
+cdef p_subscript(PyrexScanner s)
+cdef p_slice_element(PyrexScanner s, follow_set)
+cdef expect_ellipsis(PyrexScanner s)
+cdef make_slice_nodes(pos, subscripts)
+cpdef make_slice_node(pos, start, stop = *, step = *)
+cdef p_atom(PyrexScanner s)
+@cython.locals(value=unicode)
+cdef p_int_literal(PyrexScanner s)
+cdef p_name(PyrexScanner s, name)
+cdef wrap_compile_time_constant(pos, value)
+cdef p_cat_string_literal(PyrexScanner s)
+cdef p_opt_string_literal(PyrexScanner s, required_type=*)
+cdef bint check_for_non_ascii_characters(unicode string)
+@cython.locals(systr=unicode, is_python3_source=bint, is_raw=bint)
+cdef p_string_literal(PyrexScanner s, kind_override=*)
+cdef _append_escape_sequence(kind, builder, unicode escape_sequence, PyrexScanner s)
+cdef tuple _f_string_error_pos(pos, string, Py_ssize_t i)
+@cython.locals(i=Py_ssize_t, size=Py_ssize_t, c=Py_UCS4, next_start=Py_ssize_t)
+cdef list p_f_string(PyrexScanner s, unicode_value, pos, bint is_raw)
+@cython.locals(i=Py_ssize_t, size=Py_ssize_t, c=Py_UCS4, quote_char=Py_UCS4, NO_CHAR=Py_UCS4)
+cdef tuple p_f_string_expr(PyrexScanner s, unicode_value, pos, Py_ssize_t starting_index, bint is_raw)
+cdef p_list_maker(PyrexScanner s)
+cdef p_comp_iter(PyrexScanner s, body)
+cdef p_comp_for(PyrexScanner s, body)
+cdef p_comp_if(PyrexScanner s, body)
+cdef p_dict_or_set_maker(PyrexScanner s)
+cdef p_backquote_expr(PyrexScanner s)
+cdef p_simple_expr_list(PyrexScanner s, expr=*)
+cdef p_test_or_starred_expr_list(PyrexScanner s, expr=*)
+cdef p_testlist(PyrexScanner s)
+cdef p_testlist_star_expr(PyrexScanner s)
+cdef p_testlist_comp(PyrexScanner s)
+cdef p_genexp(PyrexScanner s, expr)
+
+#-------------------------------------------------------
+#
+#   Statements
+#
+#-------------------------------------------------------
+
+cdef p_global_statement(PyrexScanner s)
+cdef p_nonlocal_statement(PyrexScanner s)
+cdef p_expression_or_assignment(PyrexScanner s)
+cdef p_print_statement(PyrexScanner s)
+cdef p_exec_statement(PyrexScanner s)
+cdef p_del_statement(PyrexScanner s)
+cdef p_pass_statement(PyrexScanner s, bint with_newline = *)
+cdef p_break_statement(PyrexScanner s)
+cdef p_continue_statement(PyrexScanner s)
+cdef p_return_statement(PyrexScanner s)
+cdef p_raise_statement(PyrexScanner s)
+cdef p_import_statement(PyrexScanner s)
+cdef p_from_import_statement(PyrexScanner s, bint first_statement = *)
+cdef p_imported_name(PyrexScanner s, bint is_cimport)
+cdef p_dotted_name(PyrexScanner s, bint as_allowed)
+cdef p_as_name(PyrexScanner s)
+cdef p_assert_statement(PyrexScanner s)
+cdef p_if_statement(PyrexScanner s)
+cdef p_if_clause(PyrexScanner s)
+cdef p_else_clause(PyrexScanner s)
+cdef p_while_statement(PyrexScanner s)
+cdef p_for_statement(PyrexScanner s, bint is_async=*)
+cdef dict p_for_bounds(PyrexScanner s, bint allow_testlist=*, bint is_async=*)
+cdef p_for_from_relation(PyrexScanner s)
+cdef p_for_from_step(PyrexScanner s)
+cdef p_target(PyrexScanner s, terminator)
+cdef p_for_target(PyrexScanner s)
+cdef p_for_iterator(PyrexScanner s, bint allow_testlist=*, bint is_async=*)
+cdef p_try_statement(PyrexScanner s)
+cdef p_except_clause(PyrexScanner s)
+cdef p_include_statement(PyrexScanner s, ctx)
+cdef p_with_statement(PyrexScanner s)
+cdef p_with_items(PyrexScanner s, bint is_async=*)
+cdef p_with_template(PyrexScanner s)
+cdef p_simple_statement(PyrexScanner s, bint first_statement = *)
+cdef p_simple_statement_list(PyrexScanner s, ctx, bint first_statement = *)
+cdef p_compile_time_expr(PyrexScanner s)
+cdef p_DEF_statement(PyrexScanner s)
+cdef p_IF_statement(PyrexScanner s, ctx)
+cdef p_statement(PyrexScanner s, ctx, bint first_statement = *)
+cdef p_statement_list(PyrexScanner s, ctx, bint first_statement = *)
+cdef p_suite(PyrexScanner s, ctx = *)
+cdef tuple p_suite_with_docstring(PyrexScanner s, ctx, bint with_doc_only=*)
+cdef tuple _extract_docstring(node)
+cdef p_positional_and_keyword_args(PyrexScanner s, end_sy_set, templates = *)
+
+cpdef p_c_base_type(PyrexScanner s, bint self_flag = *, bint nonempty = *, templates = *)
+cdef p_calling_convention(PyrexScanner s)
+cdef p_c_complex_base_type(PyrexScanner s, templates = *)
+cdef p_c_simple_base_type(PyrexScanner s, bint self_flag, bint nonempty, templates = *)
+cdef p_buffer_or_template(PyrexScanner s, base_type_node, templates)
+cdef p_bracketed_base_type(PyrexScanner s, base_type_node, nonempty, empty)
+cdef is_memoryviewslice_access(PyrexScanner s)
+cdef p_memoryviewslice_access(PyrexScanner s, base_type_node)
+cdef bint looking_at_name(PyrexScanner s) except -2
+cdef object looking_at_expr(PyrexScanner s)# except -2
+cdef bint looking_at_base_type(PyrexScanner s) except -2
+cdef bint looking_at_dotted_name(PyrexScanner s) except -2
+cdef bint looking_at_call(PyrexScanner s) except -2
+cdef p_sign_and_longness(PyrexScanner s)
+cdef p_opt_cname(PyrexScanner s)
+cpdef p_c_declarator(PyrexScanner s, ctx = *, bint empty = *, bint is_type = *, bint cmethod_flag = *,
+                   bint assignable = *, bint nonempty = *,
+                   bint calling_convention_allowed = *)
+cdef p_c_array_declarator(PyrexScanner s, base)
+cdef p_c_func_declarator(PyrexScanner s, pos, ctx, base, bint cmethod_flag)
+cdef p_c_simple_declarator(PyrexScanner s, ctx, bint empty, bint is_type, bint cmethod_flag,
+                          bint assignable, bint nonempty)
+cdef p_nogil(PyrexScanner s)
+cdef p_with_gil(PyrexScanner s)
+cdef p_exception_value_clause(PyrexScanner s)
+cpdef p_c_arg_list(PyrexScanner s, ctx = *, bint in_pyfunc = *, bint cmethod_flag = *,
+                   bint nonempty_declarators = *, bint kw_only = *, bint annotated = *)
+cdef p_optional_ellipsis(PyrexScanner s)
+cdef p_c_arg_decl(PyrexScanner s, ctx, in_pyfunc, bint cmethod_flag = *, bint nonempty = *, bint kw_only = *, bint annotated = *)
+cdef p_api(PyrexScanner s)
+cdef p_cdef_statement(PyrexScanner s, ctx)
+cdef p_cdef_block(PyrexScanner s, ctx)
+cdef p_cdef_extern_block(PyrexScanner s, pos, ctx)
+cdef p_c_enum_definition(PyrexScanner s, pos, ctx)
+cdef p_c_enum_line(PyrexScanner s, ctx, list items)
+cdef p_c_enum_item(PyrexScanner s, ctx, list items)
+cdef p_c_struct_or_union_definition(PyrexScanner s, pos, ctx)
+cdef p_fused_definition(PyrexScanner s, pos, ctx)
+cdef p_struct_enum(PyrexScanner s, pos, ctx)
+cdef p_visibility(PyrexScanner s, prev_visibility)
+cdef p_c_modifiers(PyrexScanner s)
+cdef p_c_func_or_var_declaration(PyrexScanner s, pos, ctx)
+cdef p_ctypedef_statement(PyrexScanner s, ctx)
+cdef p_decorators(PyrexScanner s)
+cdef _reject_cdef_modifier_in_py(PyrexScanner s, name)
+cdef p_def_statement(PyrexScanner s, list decorators=*, bint is_async_def=*)
+cdef p_varargslist(PyrexScanner s, terminator=*, bint annotated = *)
+cdef p_py_arg_decl(PyrexScanner s, bint annotated = *)
+cdef p_class_statement(PyrexScanner s, decorators)
+cdef p_c_class_definition(PyrexScanner s, pos,  ctx)
+cdef tuple p_c_class_options(PyrexScanner s)
+cdef p_property_decl(PyrexScanner s)
+cdef p_doc_string(PyrexScanner s)
+cdef p_ignorable_statement(PyrexScanner s)
+cdef dict p_compiler_directive_comments(PyrexScanner s)
+cdef p_template_definition(PyrexScanner s)
+cdef p_cpp_class_definition(PyrexScanner s, pos, ctx)
+cdef p_cpp_class_attribute(PyrexScanner s, ctx)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Pipeline.py

@@ -0,0 +1,369 @@
+from __future__ import absolute_import
+
+import itertools
+from time import time
+
+from . import Errors
+from . import DebugFlags
+from . import Options
+from .Errors import CompileError, InternalError, AbortError
+from . import Naming
+
+#
+# Really small pipeline stages
+#
+def dumptree(t):
+    # For quick debugging in pipelines
+    print(t.dump())
+    return t
+
+def abort_on_errors(node):
+    # Stop the pipeline if there are any errors.
+    if Errors.num_errors != 0:
+        raise AbortError("pipeline break")
+    return node
+
+def parse_stage_factory(context):
+    def parse(compsrc):
+        source_desc = compsrc.source_desc
+        full_module_name = compsrc.full_module_name
+        initial_pos = (source_desc, 1, 0)
+        saved_cimport_from_pyx, Options.cimport_from_pyx = Options.cimport_from_pyx, False
+        scope = context.find_module(full_module_name, pos = initial_pos, need_pxd = 0)
+        Options.cimport_from_pyx = saved_cimport_from_pyx
+        tree = context.parse(source_desc, scope, pxd = 0, full_module_name = full_module_name)
+        tree.compilation_source = compsrc
+        tree.scope = scope
+        tree.is_pxd = False
+        return tree
+    return parse
+
+def parse_pxd_stage_factory(context, scope, module_name):
+    def parse(source_desc):
+        tree = context.parse(source_desc, scope, pxd=True,
+                             full_module_name=module_name)
+        tree.scope = scope
+        tree.is_pxd = True
+        return tree
+    return parse
+
+def generate_pyx_code_stage_factory(options, result):
+    def generate_pyx_code_stage(module_node):
+        module_node.process_implementation(options, result)
+        result.compilation_source = module_node.compilation_source
+        return result
+    return generate_pyx_code_stage
+
+
+def inject_pxd_code_stage_factory(context):
+    def inject_pxd_code_stage(module_node):
+        for name, (statlistnode, scope) in context.pxds.items():
+            module_node.merge_in(statlistnode, scope)
+        return module_node
+    return inject_pxd_code_stage
+
+
+def use_utility_code_definitions(scope, target, seen=None):
+    if seen is None:
+        seen = set()
+
+    for entry in scope.entries.values():
+        if entry in seen:
+            continue
+
+        seen.add(entry)
+        if entry.used and entry.utility_code_definition:
+            target.use_utility_code(entry.utility_code_definition)
+            for required_utility in entry.utility_code_definition.requires:
+                target.use_utility_code(required_utility)
+        elif entry.as_module:
+            use_utility_code_definitions(entry.as_module, target, seen)
+
+
+def sort_utility_codes(utilcodes):
+    ranks = {}
+    def get_rank(utilcode):
+        if utilcode not in ranks:
+            ranks[utilcode] = 0  # prevent infinite recursion on circular dependencies
+            original_order = len(ranks)
+            ranks[utilcode] = 1 + min([get_rank(dep) for dep in utilcode.requires or ()] or [-1]) + original_order * 1e-8
+        return ranks[utilcode]
+    for utilcode in utilcodes:
+        get_rank(utilcode)
+    return [utilcode for utilcode, _ in sorted(ranks.items(), key=lambda kv: kv[1])]
+
+
+def normalize_deps(utilcodes):
+    deps = {}
+    for utilcode in utilcodes:
+        deps[utilcode] = utilcode
+
+    def unify_dep(dep):
+        if dep in deps:
+            return deps[dep]
+        else:
+            deps[dep] = dep
+            return dep
+
+    for utilcode in utilcodes:
+        utilcode.requires = [unify_dep(dep) for dep in utilcode.requires or ()]
+
+
+def inject_utility_code_stage_factory(context):
+    def inject_utility_code_stage(module_node):
+        module_node.prepare_utility_code()
+        use_utility_code_definitions(context.cython_scope, module_node.scope)
+        module_node.scope.utility_code_list = sort_utility_codes(module_node.scope.utility_code_list)
+        normalize_deps(module_node.scope.utility_code_list)
+        added = []
+        # Note: the list might be extended inside the loop (if some utility code
+        # pulls in other utility code, explicitly or implicitly)
+        for utilcode in module_node.scope.utility_code_list:
+            if utilcode in added:
+                continue
+            added.append(utilcode)
+            if utilcode.requires:
+                for dep in utilcode.requires:
+                    if dep not in added and dep not in module_node.scope.utility_code_list:
+                        module_node.scope.utility_code_list.append(dep)
+            tree = utilcode.get_tree(cython_scope=context.cython_scope)
+            if tree:
+                module_node.merge_in(tree.body, tree.scope, merge_scope=True)
+        return module_node
+    return inject_utility_code_stage
+
+
+#
+# Pipeline factories
+#
+
+def create_pipeline(context, mode, exclude_classes=()):
+    assert mode in ('pyx', 'py', 'pxd')
+    from .Visitor import PrintTree
+    from .ParseTreeTransforms import WithTransform, NormalizeTree, PostParse, PxdPostParse
+    from .ParseTreeTransforms import ForwardDeclareTypes, InjectGilHandling, AnalyseDeclarationsTransform
+    from .ParseTreeTransforms import AnalyseExpressionsTransform, FindInvalidUseOfFusedTypes
+    from .ParseTreeTransforms import CreateClosureClasses, MarkClosureVisitor, DecoratorTransform
+    from .ParseTreeTransforms import TrackNumpyAttributes, InterpretCompilerDirectives, TransformBuiltinMethods
+    from .ParseTreeTransforms import ExpandInplaceOperators, ParallelRangeTransform
+    from .ParseTreeTransforms import CalculateQualifiedNamesTransform
+    from .TypeInference import MarkParallelAssignments, MarkOverflowingArithmetic
+    from .ParseTreeTransforms import AdjustDefByDirectives, AlignFunctionDefinitions
+    from .ParseTreeTransforms import RemoveUnreachableCode, GilCheck
+    from .FlowControl import ControlFlowAnalysis
+    from .AnalysedTreeTransforms import AutoTestDictTransform
+    from .AutoDocTransforms import EmbedSignature
+    from .Optimize import FlattenInListTransform, SwitchTransform, IterationTransform
+    from .Optimize import EarlyReplaceBuiltinCalls, OptimizeBuiltinCalls
+    from .Optimize import InlineDefNodeCalls
+    from .Optimize import ConstantFolding, FinalOptimizePhase
+    from .Optimize import DropRefcountingTransform
+    from .Optimize import ConsolidateOverflowCheck
+    from .Buffer import IntroduceBufferAuxiliaryVars
+    from .ModuleNode import check_c_declarations, check_c_declarations_pxd
+
+
+    if mode == 'pxd':
+        _check_c_declarations = check_c_declarations_pxd
+        _specific_post_parse = PxdPostParse(context)
+    else:
+        _check_c_declarations = check_c_declarations
+        _specific_post_parse = None
+
+    if mode == 'py':
+        _align_function_definitions = AlignFunctionDefinitions(context)
+    else:
+        _align_function_definitions = None
+
+    # NOTE: This is the "common" parts of the pipeline, which is also
+    # code in pxd files. So it will be run multiple times in a
+    # compilation stage.
+    stages = [
+        NormalizeTree(context),
+        PostParse(context),
+        _specific_post_parse,
+        TrackNumpyAttributes(),
+        InterpretCompilerDirectives(context, context.compiler_directives),
+        ParallelRangeTransform(context),
+        AdjustDefByDirectives(context),
+        WithTransform(context),
+        MarkClosureVisitor(context),
+        _align_function_definitions,
+        RemoveUnreachableCode(context),
+        ConstantFolding(),
+        FlattenInListTransform(),
+        DecoratorTransform(context),
+        ForwardDeclareTypes(context),
+        InjectGilHandling(),
+        AnalyseDeclarationsTransform(context),
+        AutoTestDictTransform(context),
+        EmbedSignature(context),
+        EarlyReplaceBuiltinCalls(context),  ## Necessary?
+        TransformBuiltinMethods(context),
+        MarkParallelAssignments(context),
+        ControlFlowAnalysis(context),
+        RemoveUnreachableCode(context),
+        # MarkParallelAssignments(context),
+        MarkOverflowingArithmetic(context),
+        IntroduceBufferAuxiliaryVars(context),
+        _check_c_declarations,
+        InlineDefNodeCalls(context),
+        AnalyseExpressionsTransform(context),
+        FindInvalidUseOfFusedTypes(context),
+        ExpandInplaceOperators(context),
+        IterationTransform(context),
+        SwitchTransform(context),
+        OptimizeBuiltinCalls(context),  ## Necessary?
+        CreateClosureClasses(context),  ## After all lookups and type inference
+        CalculateQualifiedNamesTransform(context),
+        ConsolidateOverflowCheck(context),
+        DropRefcountingTransform(),
+        FinalOptimizePhase(context),
+        GilCheck(),
+        ]
+    filtered_stages = []
+    for s in stages:
+        if s.__class__ not in exclude_classes:
+            filtered_stages.append(s)
+    return filtered_stages
+
+def create_pyx_pipeline(context, options, result, py=False, exclude_classes=()):
+    if py:
+        mode = 'py'
+    else:
+        mode = 'pyx'
+    test_support = []
+    if options.evaluate_tree_assertions:
+        from ..TestUtils import TreeAssertVisitor
+        test_support.append(TreeAssertVisitor())
+
+    if options.gdb_debug:
+        from ..Debugger import DebugWriter # requires Py2.5+
+        from .ParseTreeTransforms import DebugTransform
+        context.gdb_debug_outputwriter = DebugWriter.CythonDebugWriter(
+            options.output_dir)
+        debug_transform = [DebugTransform(context, options, result)]
+    else:
+        debug_transform = []
+
+    return list(itertools.chain(
+        [parse_stage_factory(context)],
+        create_pipeline(context, mode, exclude_classes=exclude_classes),
+        test_support,
+        [inject_pxd_code_stage_factory(context),
+         inject_utility_code_stage_factory(context),
+         abort_on_errors],
+        debug_transform,
+        [generate_pyx_code_stage_factory(options, result)]))
+
+def create_pxd_pipeline(context, scope, module_name):
+    from .CodeGeneration import ExtractPxdCode
+
+    # The pxd pipeline ends up with a CCodeWriter containing the
+    # code of the pxd, as well as a pxd scope.
+    return [
+        parse_pxd_stage_factory(context, scope, module_name)
+        ] + create_pipeline(context, 'pxd') + [
+        ExtractPxdCode()
+        ]
+
+def create_py_pipeline(context, options, result):
+    return create_pyx_pipeline(context, options, result, py=True)
+
+def create_pyx_as_pxd_pipeline(context, result):
+    from .ParseTreeTransforms import AlignFunctionDefinitions, \
+        MarkClosureVisitor, WithTransform, AnalyseDeclarationsTransform
+    from .Optimize import ConstantFolding, FlattenInListTransform
+    from .Nodes import StatListNode
+    pipeline = []
+    pyx_pipeline = create_pyx_pipeline(context, context.options, result,
+                                       exclude_classes=[
+                                           AlignFunctionDefinitions,
+                                           MarkClosureVisitor,
+                                           ConstantFolding,
+                                           FlattenInListTransform,
+                                           WithTransform
+                                           ])
+    for stage in pyx_pipeline:
+        pipeline.append(stage)
+        if isinstance(stage, AnalyseDeclarationsTransform):
+            # This is the last stage we need.
+            break
+    def fake_pxd(root):
+        for entry in root.scope.entries.values():
+            if not entry.in_cinclude:
+                entry.defined_in_pxd = 1
+                if entry.name == entry.cname and entry.visibility != 'extern':
+                    # Always mangle non-extern cimported entries.
+                    entry.cname = entry.scope.mangle(Naming.func_prefix, entry.name)
+        return StatListNode(root.pos, stats=[]), root.scope
+    pipeline.append(fake_pxd)
+    return pipeline
+
+def insert_into_pipeline(pipeline, transform, before=None, after=None):
+    """
+    Insert a new transform into the pipeline after or before an instance of
+    the given class. e.g.
+
+        pipeline = insert_into_pipeline(pipeline, transform,
+                                        after=AnalyseDeclarationsTransform)
+    """
+    assert before or after
+
+    cls = before or after
+    for i, t in enumerate(pipeline):
+        if isinstance(t, cls):
+            break
+
+    if after:
+        i += 1
+
+    return pipeline[:i] + [transform] + pipeline[i:]
+
+#
+# Running a pipeline
+#
+
+_pipeline_entry_points = {}
+
+
+def run_pipeline(pipeline, source, printtree=True):
+    from .Visitor import PrintTree
+    exec_ns = globals().copy() if DebugFlags.debug_verbose_pipeline else None
+
+    def run(phase, data):
+        return phase(data)
+
+    error = None
+    data = source
+    try:
+        try:
+            for phase in pipeline:
+                if phase is not None:
+                    if not printtree and isinstance(phase, PrintTree):
+                        continue
+                    if DebugFlags.debug_verbose_pipeline:
+                        t = time()
+                        print("Entering pipeline phase %r" % phase)
+                        # create a new wrapper for each step to show the name in profiles
+                        phase_name = getattr(phase, '__name__', type(phase).__name__)
+                        try:
+                            run = _pipeline_entry_points[phase_name]
+                        except KeyError:
+                            exec("def %s(phase, data): return phase(data)" % phase_name, exec_ns)
+                            run = _pipeline_entry_points[phase_name] = exec_ns[phase_name]
+                    data = run(phase, data)
+                    if DebugFlags.debug_verbose_pipeline:
+                        print("    %.3f seconds" % (time() - t))
+        except CompileError as err:
+            # err is set
+            Errors.report_error(err, use_stack=False)
+            error = err
+    except InternalError as err:
+        # Only raise if there was not an earlier error
+        if Errors.num_errors == 0:
+            raise
+        error = err
+    except AbortError as err:
+        error = err
+    return (error, data)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Pythran.py

@@ -0,0 +1,227 @@
+# cython: language_level=3
+
+from __future__ import absolute_import
+
+from .PyrexTypes import CType, CTypedefType, CStructOrUnionType
+
+import cython
+
+try:
+    import pythran
+    pythran_is_pre_0_9 = tuple(map(int, pythran.__version__.split('.')[0:2])) < (0, 9)
+    pythran_is_pre_0_9_6 = tuple(map(int, pythran.__version__.split('.')[0:3])) < (0, 9, 6)
+except ImportError:
+    pythran = None
+    pythran_is_pre_0_9 = True
+    pythran_is_pre_0_9_6 = True
+
+if pythran_is_pre_0_9_6:
+    pythran_builtins = '__builtin__'
+else:
+    pythran_builtins = 'builtins'
+
+
+# Pythran/Numpy specific operations
+
+def has_np_pythran(env):
+    if env is None:
+        return False
+    directives = getattr(env, 'directives', None)
+    return (directives and directives.get('np_pythran', False))
+
+@cython.ccall
+def is_pythran_supported_dtype(type_):
+    if isinstance(type_, CTypedefType):
+        return is_pythran_supported_type(type_.typedef_base_type)
+    return type_.is_numeric
+
+
+def pythran_type(Ty, ptype="ndarray"):
+    if Ty.is_buffer:
+        ndim,dtype = Ty.ndim, Ty.dtype
+        if isinstance(dtype, CStructOrUnionType):
+            ctype = dtype.cname
+        elif isinstance(dtype, CType):
+            ctype = dtype.sign_and_name()
+        elif isinstance(dtype, CTypedefType):
+            ctype = dtype.typedef_cname
+        else:
+            raise ValueError("unsupported type %s!" % dtype)
+        if pythran_is_pre_0_9:
+            return "pythonic::types::%s<%s,%d>" % (ptype,ctype, ndim)
+        else:
+            return "pythonic::types::%s<%s,pythonic::types::pshape<%s>>" % (ptype,ctype, ",".join(("long",)*ndim))
+    if Ty.is_pythran_expr:
+        return Ty.pythran_type
+    #if Ty.is_none:
+    #    return "decltype(pythonic::builtins::None)"
+    if Ty.is_numeric:
+        return Ty.sign_and_name()
+    raise ValueError("unsupported pythran type %s (%s)" % (Ty, type(Ty)))
+
+
+@cython.cfunc
+def type_remove_ref(ty):
+    return "typename std::remove_reference<%s>::type" % ty
+
+
+def pythran_binop_type(op, tA, tB):
+    if op == '**':
+        return 'decltype(pythonic::numpy::functor::power{}(std::declval<%s>(), std::declval<%s>()))' % (
+            pythran_type(tA), pythran_type(tB))
+    else:
+        return "decltype(std::declval<%s>() %s std::declval<%s>())" % (
+            pythran_type(tA), op, pythran_type(tB))
+
+
+def pythran_unaryop_type(op, type_):
+    return "decltype(%sstd::declval<%s>())" % (
+        op, pythran_type(type_))
+
+
+@cython.cfunc
+def _index_access(index_code, indices):
+    indexing = ",".join([index_code(idx) for idx in indices])
+    return ('[%s]' if len(indices) == 1 else '(%s)') % indexing
+
+
+def _index_type_code(index_with_type):
+    idx, index_type = index_with_type
+    if idx.is_slice:
+        n = 2 + int(not idx.step.is_none)
+        return "pythonic::%s::functor::slice{}(%s)" % (
+            pythran_builtins,
+            ",".join(["0"]*n))
+    elif index_type.is_int:
+        return "std::declval<%s>()" % index_type.sign_and_name()
+    elif index_type.is_pythran_expr:
+        return "std::declval<%s>()" % index_type.pythran_type
+    raise ValueError("unsupported indexing type %s!" % index_type)
+
+
+def _index_code(idx):
+    if idx.is_slice:
+        values = idx.start, idx.stop, idx.step
+        if idx.step.is_none:
+            func = "contiguous_slice"
+            values = values[:2]
+        else:
+            func = "slice"
+        return "pythonic::types::%s(%s)" % (
+            func, ",".join((v.pythran_result() for v in values)))
+    elif idx.type.is_int:
+        return to_pythran(idx)
+    elif idx.type.is_pythran_expr:
+        return idx.pythran_result()
+    raise ValueError("unsupported indexing type %s" % idx.type)
+
+
+def pythran_indexing_type(type_, indices):
+    return type_remove_ref("decltype(std::declval<%s>()%s)" % (
+        pythran_type(type_),
+        _index_access(_index_type_code, indices),
+    ))
+
+
+def pythran_indexing_code(indices):
+    return _index_access(_index_code, indices)
+
+def np_func_to_list(func):
+    if not func.is_numpy_attribute:
+        return []
+    return np_func_to_list(func.obj) + [func.attribute]
+
+if pythran is None:
+    def pythran_is_numpy_func_supported(name):
+        return False
+else:
+    def pythran_is_numpy_func_supported(func):
+        CurF = pythran.tables.MODULES['numpy']
+        FL = np_func_to_list(func)
+        for F in FL:
+            CurF = CurF.get(F, None)
+            if CurF is None:
+                return False
+        return True
+
+def pythran_functor(func):
+    func = np_func_to_list(func)
+    submodules = "::".join(func[:-1] + ["functor"])
+    return "pythonic::numpy::%s::%s" % (submodules, func[-1])
+
+def pythran_func_type(func, args):
+    args = ",".join(("std::declval<%s>()" % pythran_type(a.type) for a in args))
+    return "decltype(%s{}(%s))" % (pythran_functor(func), args)
+
+
+@cython.ccall
+def to_pythran(op, ptype=None):
+    op_type = op.type
+    if op_type.is_int:
+        # Make sure that integer literals always have exactly the type that the templates expect.
+        return op_type.cast_code(op.result())
+    if is_type(op_type, ["is_pythran_expr", "is_numeric", "is_float", "is_complex"]):
+        return op.result()
+    if op.is_none:
+        return "pythonic::%s::None" % pythran_builtins
+    if ptype is None:
+        ptype = pythran_type(op_type)
+
+    assert op.type.is_pyobject
+    return "from_python<%s>(%s)" % (ptype, op.py_result())
+
+
+@cython.cfunc
+def is_type(type_, types):
+    for attr in types:
+        if getattr(type_, attr, False):
+            return True
+    return False
+
+
+def is_pythran_supported_node_or_none(node):
+    return node.is_none or is_pythran_supported_type(node.type)
+
+
+@cython.ccall
+def is_pythran_supported_type(type_):
+    pythran_supported = (
+        "is_pythran_expr", "is_int", "is_numeric", "is_float", "is_none", "is_complex")
+    return is_type(type_, pythran_supported) or is_pythran_expr(type_)
+
+
+def is_pythran_supported_operation_type(type_):
+    pythran_supported = (
+        "is_pythran_expr", "is_int", "is_numeric", "is_float", "is_complex")
+    return is_type(type_,pythran_supported) or is_pythran_expr(type_)
+
+
+@cython.ccall
+def is_pythran_expr(type_):
+    return type_.is_pythran_expr
+
+
+def is_pythran_buffer(type_):
+    return (type_.is_numpy_buffer and is_pythran_supported_dtype(type_.dtype) and
+            type_.mode in ("c", "strided") and not type_.cast)
+
+def pythran_get_func_include_file(func):
+    func = np_func_to_list(func)
+    return "pythonic/numpy/%s.hpp" % "/".join(func)
+
+def include_pythran_generic(env):
+    # Generic files
+    env.add_include_file("pythonic/core.hpp")
+    env.add_include_file("pythonic/python/core.hpp")
+    env.add_include_file("pythonic/types/bool.hpp")
+    env.add_include_file("pythonic/types/ndarray.hpp")
+    env.add_include_file("pythonic/numpy/power.hpp")
+    env.add_include_file("pythonic/%s/slice.hpp" % pythran_builtins)
+    env.add_include_file("<new>")  # for placement new
+
+    for i in (8, 16, 32, 64):
+        env.add_include_file("pythonic/types/uint%d.hpp" % i)
+        env.add_include_file("pythonic/types/int%d.hpp" % i)
+    for t in ("float", "float32", "float64", "set", "slice", "tuple", "int",
+              "complex", "complex64", "complex128"):
+        env.add_include_file("pythonic/types/%s.hpp" % t)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Scanning.pxd

@@ -0,0 +1,67 @@
+from __future__ import absolute_import
+
+import cython
+
+from ..Plex.Scanners cimport Scanner
+
+cdef unicode any_string_prefix, IDENT
+
+cdef get_lexicon()
+cdef initial_compile_time_env()
+
+cdef class Method:
+    cdef object name
+    cdef dict kwargs
+    cdef readonly object __name__  # for tracing the scanner
+
+## methods commented with '##' out are used by Parsing.py when compiled.
+
+@cython.final
+cdef class CompileTimeScope:
+    cdef public dict entries
+    cdef public CompileTimeScope outer
+    ##cdef declare(self, name, value)
+    ##cdef lookup_here(self, name)
+    ##cpdef lookup(self, name)
+
+@cython.final
+cdef class PyrexScanner(Scanner):
+    cdef public context
+    cdef public list included_files
+    cdef public CompileTimeScope compile_time_env
+    cdef public bint compile_time_eval
+    cdef public bint compile_time_expr
+    cdef public bint parse_comments
+    cdef public bint in_python_file
+    cdef public source_encoding
+    cdef set keywords
+    cdef public list indentation_stack
+    cdef public indentation_char
+    cdef public int bracket_nesting_level
+    cdef readonly bint async_enabled
+    cdef public sy
+    cdef public systring
+
+    cdef long current_level(self)
+    #cpdef commentline(self, text)
+    #cpdef open_bracket_action(self, text)
+    #cpdef close_bracket_action(self, text)
+    #cpdef newline_action(self, text)
+    #cpdef begin_string_action(self, text)
+    #cpdef end_string_action(self, text)
+    #cpdef unclosed_string_action(self, text)
+    @cython.locals(current_level=cython.long, new_level=cython.long)
+    cpdef indentation_action(self, text)
+    #cpdef eof_action(self, text)
+    ##cdef next(self)
+    ##cdef peek(self)
+    #cpdef put_back(self, sy, systring)
+    #cdef unread(self, token, value)
+    ##cdef bint expect(self, what, message = *) except -2
+    ##cdef expect_keyword(self, what, message = *)
+    ##cdef expected(self, what, message = *)
+    ##cdef expect_indent(self)
+    ##cdef expect_dedent(self)
+    ##cdef expect_newline(self, message=*, bint ignore_semicolon=*)
+    ##cdef int enter_async(self) except -1
+    ##cdef int exit_async(self) except -1

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Scanning.py

@@ -0,0 +1,551 @@
+# cython: infer_types=True, language_level=3, py2_import=True, auto_pickle=False
+#
+#   Cython Scanner
+#
+
+from __future__ import absolute_import
+
+import cython
+cython.declare(make_lexicon=object, lexicon=object,
+               print_function=object, error=object, warning=object,
+               os=object, platform=object)
+
+import os
+import platform
+
+from .. import Utils
+from ..Plex.Scanners import Scanner
+from ..Plex.Errors import UnrecognizedInput
+from .Errors import error, warning
+from .Lexicon import any_string_prefix, make_lexicon, IDENT
+from .Future import print_function
+
+debug_scanner = 0
+trace_scanner = 0
+scanner_debug_flags = 0
+scanner_dump_file = None
+
+lexicon = None
+
+
+def get_lexicon():
+    global lexicon
+    if not lexicon:
+        lexicon = make_lexicon()
+    return lexicon
+
+
+#------------------------------------------------------------------
+
+py_reserved_words = [
+    "global", "nonlocal", "def", "class", "print", "del", "pass", "break",
+    "continue", "return", "raise", "import", "exec", "try",
+    "except", "finally", "while", "if", "elif", "else", "for",
+    "in", "assert", "and", "or", "not", "is", "lambda",
+    "from", "yield", "with",
+]
+
+pyx_reserved_words = py_reserved_words + [
+    "include", "ctypedef", "cdef", "cpdef",
+    "cimport", "DEF", "IF", "ELIF", "ELSE"
+]
+
+
+class Method(object):
+
+    def __init__(self, name, **kwargs):
+        self.name = name
+        self.kwargs = kwargs or None
+        self.__name__ = name  # for Plex tracing
+
+    def __call__(self, stream, text):
+        method = getattr(stream, self.name)
+        # self.kwargs is almost always unused => avoid call overhead
+        return method(text, **self.kwargs) if self.kwargs is not None else method(text)
+
+    def __copy__(self):
+        return self  # immutable, no need to copy
+
+    def __deepcopy__(self, memo):
+        return self  # immutable, no need to copy
+
+
+#------------------------------------------------------------------
+
+class CompileTimeScope(object):
+
+    def __init__(self, outer=None):
+        self.entries = {}
+        self.outer = outer
+
+    def declare(self, name, value):
+        self.entries[name] = value
+
+    def update(self, other):
+        self.entries.update(other)
+
+    def lookup_here(self, name):
+        return self.entries[name]
+
+    def __contains__(self, name):
+        return name in self.entries
+
+    def lookup(self, name):
+        try:
+            return self.lookup_here(name)
+        except KeyError:
+            outer = self.outer
+            if outer:
+                return outer.lookup(name)
+            else:
+                raise
+
+
+def initial_compile_time_env():
+    benv = CompileTimeScope()
+    names = ('UNAME_SYSNAME', 'UNAME_NODENAME', 'UNAME_RELEASE', 'UNAME_VERSION', 'UNAME_MACHINE')
+    for name, value in zip(names, platform.uname()):
+        benv.declare(name, value)
+    try:
+        import __builtin__ as builtins
+    except ImportError:
+        import builtins
+
+    names = (
+        'False', 'True',
+        'abs', 'all', 'any', 'ascii', 'bin', 'bool', 'bytearray', 'bytes',
+        'chr', 'cmp', 'complex', 'dict', 'divmod', 'enumerate', 'filter',
+        'float', 'format', 'frozenset', 'hash', 'hex', 'int', 'len',
+        'list', 'map', 'max', 'min', 'oct', 'ord', 'pow', 'range',
+        'repr', 'reversed', 'round', 'set', 'slice', 'sorted', 'str',
+        'sum', 'tuple', 'zip',
+        ### defined below in a platform independent way
+        # 'long', 'unicode', 'reduce', 'xrange'
+    )
+
+    for name in names:
+        try:
+            benv.declare(name, getattr(builtins, name))
+        except AttributeError:
+            # ignore, likely Py3
+            pass
+
+    # Py2/3 adaptations
+    from functools import reduce
+    benv.declare('reduce', reduce)
+    benv.declare('unicode', getattr(builtins, 'unicode', getattr(builtins, 'str')))
+    benv.declare('long', getattr(builtins, 'long', getattr(builtins, 'int')))
+    benv.declare('xrange', getattr(builtins, 'xrange', getattr(builtins, 'range')))
+
+    denv = CompileTimeScope(benv)
+    return denv
+
+
+#------------------------------------------------------------------
+
+class SourceDescriptor(object):
+    """
+    A SourceDescriptor should be considered immutable.
+    """
+    filename = None
+
+    _file_type = 'pyx'
+
+    _escaped_description = None
+    _cmp_name = ''
+    def __str__(self):
+        assert False # To catch all places where a descriptor is used directly as a filename
+
+    def set_file_type_from_name(self, filename):
+        name, ext = os.path.splitext(filename)
+        self._file_type = ext in ('.pyx', '.pxd', '.py') and ext[1:] or 'pyx'
+
+    def is_cython_file(self):
+        return self._file_type in ('pyx', 'pxd')
+
+    def is_python_file(self):
+        return self._file_type == 'py'
+
+    def get_escaped_description(self):
+        if self._escaped_description is None:
+            esc_desc = \
+                self.get_description().encode('ASCII', 'replace').decode("ASCII")
+            # Use forward slashes on Windows since these paths
+            # will be used in the #line directives in the C/C++ files.
+            self._escaped_description = esc_desc.replace('\\', '/')
+        return self._escaped_description
+
+    def __gt__(self, other):
+        # this is only used to provide some sort of order
+        try:
+            return self._cmp_name > other._cmp_name
+        except AttributeError:
+            return False
+
+    def __lt__(self, other):
+        # this is only used to provide some sort of order
+        try:
+            return self._cmp_name < other._cmp_name
+        except AttributeError:
+            return False
+
+    def __le__(self, other):
+        # this is only used to provide some sort of order
+        try:
+            return self._cmp_name <= other._cmp_name
+        except AttributeError:
+            return False
+
+    def __copy__(self):
+        return self  # immutable, no need to copy
+
+    def __deepcopy__(self, memo):
+        return self  # immutable, no need to copy
+
+
+class FileSourceDescriptor(SourceDescriptor):
+    """
+    Represents a code source. A code source is a more generic abstraction
+    for a "filename" (as sometimes the code doesn't come from a file).
+    Instances of code sources are passed to Scanner.__init__ as the
+    optional name argument and will be passed back when asking for
+    the position()-tuple.
+    """
+    def __init__(self, filename, path_description=None):
+        filename = Utils.decode_filename(filename)
+        self.path_description = path_description or filename
+        self.filename = filename
+        # Prefer relative paths to current directory (which is most likely the project root) over absolute paths.
+        workdir = os.path.abspath('.') + os.sep
+        self.file_path = filename[len(workdir):] if filename.startswith(workdir) else filename
+        self.set_file_type_from_name(filename)
+        self._cmp_name = filename
+        self._lines = {}
+
+    def get_lines(self, encoding=None, error_handling=None):
+        # we cache the lines only the second time this is called, in
+        # order to save memory when they are only used once
+        key = (encoding, error_handling)
+        try:
+            lines = self._lines[key]
+            if lines is not None:
+                return lines
+        except KeyError:
+            pass
+
+        with Utils.open_source_file(self.filename, encoding=encoding, error_handling=error_handling) as f:
+            lines = list(f)
+
+        if key in self._lines:
+            self._lines[key] = lines
+        else:
+            # do not cache the first access, but remember that we
+            # already read it once
+            self._lines[key] = None
+        return lines
+
+    def get_description(self):
+        try:
+            return os.path.relpath(self.path_description)
+        except ValueError:
+            # path not under current directory => use complete file path
+            return self.path_description
+
+    def get_error_description(self):
+        path = self.filename
+        cwd = Utils.decode_filename(os.getcwd() + os.path.sep)
+        if path.startswith(cwd):
+            return path[len(cwd):]
+        return path
+
+    def get_filenametable_entry(self):
+        return self.file_path
+
+    def __eq__(self, other):
+        return isinstance(other, FileSourceDescriptor) and self.filename == other.filename
+
+    def __hash__(self):
+        return hash(self.filename)
+
+    def __repr__(self):
+        return "<FileSourceDescriptor:%s>" % self.filename
+
+
+class StringSourceDescriptor(SourceDescriptor):
+    """
+    Instances of this class can be used instead of a filenames if the
+    code originates from a string object.
+    """
+    def __init__(self, name, code):
+        self.name = name
+        #self.set_file_type_from_name(name)
+        self.codelines = [x + "\n" for x in code.split("\n")]
+        self._cmp_name = name
+
+    def get_lines(self, encoding=None, error_handling=None):
+        if not encoding:
+            return self.codelines
+        else:
+            return [line.encode(encoding, error_handling).decode(encoding)
+                    for line in self.codelines]
+
+    def get_description(self):
+        return self.name
+
+    get_error_description = get_description
+
+    def get_filenametable_entry(self):
+        return "stringsource"
+
+    def __hash__(self):
+        return id(self)
+        # Do not hash on the name, an identical string source should be the
+        # same object (name is often defaulted in other places)
+        # return hash(self.name)
+
+    def __eq__(self, other):
+        return isinstance(other, StringSourceDescriptor) and self.name == other.name
+
+    def __repr__(self):
+        return "<StringSourceDescriptor:%s>" % self.name
+
+
+#------------------------------------------------------------------
+
+class PyrexScanner(Scanner):
+    #  context            Context  Compilation context
+    #  included_files     [string] Files included with 'include' statement
+    #  compile_time_env   dict     Environment for conditional compilation
+    #  compile_time_eval  boolean  In a true conditional compilation context
+    #  compile_time_expr  boolean  In a compile-time expression context
+
+    def __init__(self, file, filename, parent_scanner=None,
+                 scope=None, context=None, source_encoding=None, parse_comments=True, initial_pos=None):
+        Scanner.__init__(self, get_lexicon(), file, filename, initial_pos)
+
+        if filename.is_python_file():
+            self.in_python_file = True
+            self.keywords = set(py_reserved_words)
+        else:
+            self.in_python_file = False
+            self.keywords = set(pyx_reserved_words)
+
+        self.async_enabled = 0
+
+        if parent_scanner:
+            self.context = parent_scanner.context
+            self.included_files = parent_scanner.included_files
+            self.compile_time_env = parent_scanner.compile_time_env
+            self.compile_time_eval = parent_scanner.compile_time_eval
+            self.compile_time_expr = parent_scanner.compile_time_expr
+
+            if parent_scanner.async_enabled:
+                self.enter_async()
+        else:
+            self.context = context
+            self.included_files = scope.included_files
+            self.compile_time_env = initial_compile_time_env()
+            self.compile_time_eval = 1
+            self.compile_time_expr = 0
+            if getattr(context.options, 'compile_time_env', None):
+                self.compile_time_env.update(context.options.compile_time_env)
+        self.parse_comments = parse_comments
+        self.source_encoding = source_encoding
+        self.trace = trace_scanner
+        self.indentation_stack = [0]
+        self.indentation_char = None
+        self.bracket_nesting_level = 0
+
+        self.begin('INDENT')
+        self.sy = ''
+        self.next()
+
+    def commentline(self, text):
+        if self.parse_comments:
+            self.produce('commentline', text)
+
+    def strip_underscores(self, text, symbol):
+        self.produce(symbol, text.replace('_', ''))
+
+    def current_level(self):
+        return self.indentation_stack[-1]
+
+    def open_bracket_action(self, text):
+        self.bracket_nesting_level += 1
+        return text
+
+    def close_bracket_action(self, text):
+        self.bracket_nesting_level -= 1
+        return text
+
+    def newline_action(self, text):
+        if self.bracket_nesting_level == 0:
+            self.begin('INDENT')
+            self.produce('NEWLINE', '')
+
+    string_states = {
+        "'":   'SQ_STRING',
+        '"':   'DQ_STRING',
+        "'''": 'TSQ_STRING',
+        '"""': 'TDQ_STRING'
+    }
+
+    def begin_string_action(self, text):
+        while text[:1] in any_string_prefix:
+            text = text[1:]
+        self.begin(self.string_states[text])
+        self.produce('BEGIN_STRING')
+
+    def end_string_action(self, text):
+        self.begin('')
+        self.produce('END_STRING')
+
+    def unclosed_string_action(self, text):
+        self.end_string_action(text)
+        self.error("Unclosed string literal")
+
+    def indentation_action(self, text):
+        self.begin('')
+        # Indentation within brackets should be ignored.
+        #if self.bracket_nesting_level > 0:
+        #    return
+        # Check that tabs and spaces are being used consistently.
+        if text:
+            c = text[0]
+            #print "Scanner.indentation_action: indent with", repr(c) ###
+            if self.indentation_char is None:
+                self.indentation_char = c
+                #print "Scanner.indentation_action: setting indent_char to", repr(c)
+            else:
+                if self.indentation_char != c:
+                    self.error("Mixed use of tabs and spaces")
+            if text.replace(c, "") != "":
+                self.error("Mixed use of tabs and spaces")
+        # Figure out how many indents/dedents to do
+        current_level = self.current_level()
+        new_level = len(text)
+        #print "Changing indent level from", current_level, "to", new_level ###
+        if new_level == current_level:
+            return
+        elif new_level > current_level:
+            #print "...pushing level", new_level ###
+            self.indentation_stack.append(new_level)
+            self.produce('INDENT', '')
+        else:
+            while new_level < self.current_level():
+                #print "...popping level", self.indentation_stack[-1] ###
+                self.indentation_stack.pop()
+                self.produce('DEDENT', '')
+            #print "...current level now", self.current_level() ###
+            if new_level != self.current_level():
+                self.error("Inconsistent indentation")
+
+    def eof_action(self, text):
+        while len(self.indentation_stack) > 1:
+            self.produce('DEDENT', '')
+            self.indentation_stack.pop()
+        self.produce('EOF', '')
+
+    def next(self):
+        try:
+            sy, systring = self.read()
+        except UnrecognizedInput:
+            self.error("Unrecognized character")
+            return  # just a marker, error() always raises
+        if sy == IDENT:
+            if systring in self.keywords:
+                if systring == u'print' and print_function in self.context.future_directives:
+                    self.keywords.discard('print')
+                elif systring == u'exec' and self.context.language_level >= 3:
+                    self.keywords.discard('exec')
+                else:
+                    sy = systring
+            systring = self.context.intern_ustring(systring)
+        self.sy = sy
+        self.systring = systring
+        if False: # debug_scanner:
+            _, line, col = self.position()
+            if not self.systring or self.sy == self.systring:
+                t = self.sy
+            else:
+                t = "%s %s" % (self.sy, self.systring)
+            print("--- %3d %2d %s" % (line, col, t))
+
+    def peek(self):
+        saved = self.sy, self.systring
+        self.next()
+        next = self.sy, self.systring
+        self.unread(*next)
+        self.sy, self.systring = saved
+        return next
+
+    def put_back(self, sy, systring):
+        self.unread(self.sy, self.systring)
+        self.sy = sy
+        self.systring = systring
+
+    def unread(self, token, value):
+        # This method should be added to Plex
+        self.queue.insert(0, (token, value))
+
+    def error(self, message, pos=None, fatal=True):
+        if pos is None:
+            pos = self.position()
+        if self.sy == 'INDENT':
+            error(pos, "Possible inconsistent indentation")
+        err = error(pos, message)
+        if fatal: raise err
+
+    def expect(self, what, message=None):
+        if self.sy == what:
+            self.next()
+        else:
+            self.expected(what, message)
+
+    def expect_keyword(self, what, message=None):
+        if self.sy == IDENT and self.systring == what:
+            self.next()
+        else:
+            self.expected(what, message)
+
+    def expected(self, what, message=None):
+        if message:
+            self.error(message)
+        else:
+            if self.sy == IDENT:
+                found = self.systring
+            else:
+                found = self.sy
+            self.error("Expected '%s', found '%s'" % (what, found))
+
+    def expect_indent(self):
+        self.expect('INDENT', "Expected an increase in indentation level")
+
+    def expect_dedent(self):
+        self.expect('DEDENT', "Expected a decrease in indentation level")
+
+    def expect_newline(self, message="Expected a newline", ignore_semicolon=False):
+        # Expect either a newline or end of file
+        useless_trailing_semicolon = None
+        if ignore_semicolon and self.sy == ';':
+            useless_trailing_semicolon = self.position()
+            self.next()
+        if self.sy != 'EOF':
+            self.expect('NEWLINE', message)
+        if useless_trailing_semicolon is not None:
+            warning(useless_trailing_semicolon, "useless trailing semicolon")
+
+    def enter_async(self):
+        self.async_enabled += 1
+        if self.async_enabled == 1:
+            self.keywords.add('async')
+            self.keywords.add('await')
+
+    def exit_async(self):
+        assert self.async_enabled > 0
+        self.async_enabled -= 1
+        if not self.async_enabled:
+            self.keywords.discard('await')
+            self.keywords.discard('async')
+            if self.sy in ('async', 'await'):
+                self.sy, self.systring = IDENT, self.context.intern_ustring(self.sy)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/StringEncoding.py

@@ -0,0 +1,363 @@
+#
+#   Cython -- encoding related tools
+#
+
+from __future__ import absolute_import
+
+import re
+import sys
+
+if sys.version_info[0] >= 3:
+    _unicode, _str, _bytes, _unichr = str, str, bytes, chr
+    IS_PYTHON3 = True
+else:
+    _unicode, _str, _bytes, _unichr = unicode, str, str, unichr
+    IS_PYTHON3 = False
+
+empty_bytes = _bytes()
+empty_unicode = _unicode()
+
+join_bytes = empty_bytes.join
+
+
+class UnicodeLiteralBuilder(object):
+    """Assemble a unicode string.
+    """
+    def __init__(self):
+        self.chars = []
+
+    def append(self, characters):
+        if isinstance(characters, _bytes):
+            # this came from a Py2 string literal in the parser code
+            characters = characters.decode("ASCII")
+        assert isinstance(characters, _unicode), str(type(characters))
+        self.chars.append(characters)
+
+    if sys.maxunicode == 65535:
+        def append_charval(self, char_number):
+            if char_number > 65535:
+                # wide Unicode character on narrow platform => replace
+                # by surrogate pair
+                char_number -= 0x10000
+                self.chars.append( _unichr((char_number // 1024) + 0xD800) )
+                self.chars.append( _unichr((char_number  % 1024) + 0xDC00) )
+            else:
+                self.chars.append( _unichr(char_number) )
+    else:
+        def append_charval(self, char_number):
+            self.chars.append( _unichr(char_number) )
+
+    def append_uescape(self, char_number, escape_string):
+        self.append_charval(char_number)
+
+    def getstring(self):
+        return EncodedString(u''.join(self.chars))
+
+    def getstrings(self):
+        return (None, self.getstring())
+
+
+class BytesLiteralBuilder(object):
+    """Assemble a byte string or char value.
+    """
+    def __init__(self, target_encoding):
+        self.chars = []
+        self.target_encoding = target_encoding
+
+    def append(self, characters):
+        if isinstance(characters, _unicode):
+            characters = characters.encode(self.target_encoding)
+        assert isinstance(characters, _bytes), str(type(characters))
+        self.chars.append(characters)
+
+    def append_charval(self, char_number):
+        self.chars.append( _unichr(char_number).encode('ISO-8859-1') )
+
+    def append_uescape(self, char_number, escape_string):
+        self.append(escape_string)
+
+    def getstring(self):
+        # this *must* return a byte string!
+        return bytes_literal(join_bytes(self.chars), self.target_encoding)
+
+    def getchar(self):
+        # this *must* return a byte string!
+        return self.getstring()
+
+    def getstrings(self):
+        return (self.getstring(), None)
+
+
+class StrLiteralBuilder(object):
+    """Assemble both a bytes and a unicode representation of a string.
+    """
+    def __init__(self, target_encoding):
+        self._bytes   = BytesLiteralBuilder(target_encoding)
+        self._unicode = UnicodeLiteralBuilder()
+
+    def append(self, characters):
+        self._bytes.append(characters)
+        self._unicode.append(characters)
+
+    def append_charval(self, char_number):
+        self._bytes.append_charval(char_number)
+        self._unicode.append_charval(char_number)
+
+    def append_uescape(self, char_number, escape_string):
+        self._bytes.append(escape_string)
+        self._unicode.append_charval(char_number)
+
+    def getstrings(self):
+        return (self._bytes.getstring(), self._unicode.getstring())
+
+
+class EncodedString(_unicode):
+    # unicode string subclass to keep track of the original encoding.
+    # 'encoding' is None for unicode strings and the source encoding
+    # otherwise
+    encoding = None
+
+    def __deepcopy__(self, memo):
+        return self
+
+    def byteencode(self):
+        assert self.encoding is not None
+        return self.encode(self.encoding)
+
+    def utf8encode(self):
+        assert self.encoding is None
+        return self.encode("UTF-8")
+
+    @property
+    def is_unicode(self):
+        return self.encoding is None
+
+    def contains_surrogates(self):
+        return string_contains_surrogates(self)
+
+    def as_utf8_string(self):
+        return bytes_literal(self.utf8encode(), 'utf8')
+
+
+def string_contains_surrogates(ustring):
+    """
+    Check if the unicode string contains surrogate code points
+    on a CPython platform with wide (UCS-4) or narrow (UTF-16)
+    Unicode, i.e. characters that would be spelled as two
+    separate code units on a narrow platform.
+    """
+    for c in map(ord, ustring):
+        if c > 65535:  # can only happen on wide platforms
+            return True
+        if 0xD800 <= c <= 0xDFFF:
+            return True
+    return False
+
+
+def string_contains_lone_surrogates(ustring):
+    """
+    Check if the unicode string contains lone surrogate code points
+    on a CPython platform with wide (UCS-4) or narrow (UTF-16)
+    Unicode, i.e. characters that would be spelled as two
+    separate code units on a narrow platform, but that do not form a pair.
+    """
+    last_was_start = False
+    unicode_uses_surrogate_encoding = sys.maxunicode == 65535
+    for c in map(ord, ustring):
+        # surrogates tend to be rare
+        if c < 0xD800 or c > 0xDFFF:
+            if last_was_start:
+                return True
+        elif not unicode_uses_surrogate_encoding:
+            # on 32bit Unicode platforms, there is never a pair
+            return True
+        elif c <= 0xDBFF:
+            if last_was_start:
+                return True  # lone start
+            last_was_start = True
+        else:
+            if not last_was_start:
+                return True  # lone end
+            last_was_start = False
+    return last_was_start
+
+
+class BytesLiteral(_bytes):
+    # bytes subclass that is compatible with EncodedString
+    encoding = None
+
+    def __deepcopy__(self, memo):
+        return self
+
+    def byteencode(self):
+        if IS_PYTHON3:
+            return _bytes(self)
+        else:
+            # fake-recode the string to make it a plain bytes object
+            return self.decode('ISO-8859-1').encode('ISO-8859-1')
+
+    def utf8encode(self):
+        assert False, "this is not a unicode string: %r" % self
+
+    def __str__(self):
+        """Fake-decode the byte string to unicode to support %
+        formatting of unicode strings.
+        """
+        return self.decode('ISO-8859-1')
+
+    is_unicode = False
+
+    def as_c_string_literal(self):
+        value = split_string_literal(escape_byte_string(self))
+        return '"%s"' % value
+
+
+def bytes_literal(s, encoding):
+    assert isinstance(s, bytes)
+    s = BytesLiteral(s)
+    s.encoding = encoding
+    return s
+
+
+def encoded_string(s, encoding):
+    assert isinstance(s, (_unicode, bytes))
+    s = EncodedString(s)
+    if encoding is not None:
+        s.encoding = encoding
+    return s
+
+
+char_from_escape_sequence = {
+    r'\a' : u'\a',
+    r'\b' : u'\b',
+    r'\f' : u'\f',
+    r'\n' : u'\n',
+    r'\r' : u'\r',
+    r'\t' : u'\t',
+    r'\v' : u'\v',
+    }.get
+
+_c_special = ('\\', '??', '"') + tuple(map(chr, range(32)))
+
+
+def _to_escape_sequence(s):
+    if s in '\n\r\t':
+        return repr(s)[1:-1]
+    elif s == '"':
+        return r'\"'
+    elif s == '\\':
+        return r'\\'
+    else:
+        # within a character sequence, oct passes much better than hex
+        return ''.join(['\\%03o' % ord(c) for c in s])
+
+
+def _build_specials_replacer():
+    subexps = []
+    replacements = {}
+    for special in _c_special:
+        regexp = ''.join(['[%s]' % c.replace('\\', '\\\\') for c in special])
+        subexps.append(regexp)
+        replacements[special.encode('ASCII')] = _to_escape_sequence(special).encode('ASCII')
+    sub = re.compile(('(%s)' % '|'.join(subexps)).encode('ASCII')).sub
+    def replace_specials(m):
+        return replacements[m.group(1)]
+    def replace(s):
+        return sub(replace_specials, s)
+    return replace
+
+_replace_specials = _build_specials_replacer()
+
+
+def escape_char(c):
+    if IS_PYTHON3:
+        c = c.decode('ISO-8859-1')
+    if c in '\n\r\t\\':
+        return repr(c)[1:-1]
+    elif c == "'":
+        return "\\'"
+    n = ord(c)
+    if n < 32 or n > 127:
+        # hex works well for characters
+        return "\\x%02X" % n
+    else:
+        return c
+
+def escape_byte_string(s):
+    """Escape a byte string so that it can be written into C code.
+    Note that this returns a Unicode string instead which, when
+    encoded as ISO-8859-1, will result in the correct byte sequence
+    being written.
+    """
+    s = _replace_specials(s)
+    try:
+        return s.decode("ASCII") # trial decoding: plain ASCII => done
+    except UnicodeDecodeError:
+        pass
+    if IS_PYTHON3:
+        s_new = bytearray()
+        append, extend = s_new.append, s_new.extend
+        for b in s:
+            if b >= 128:
+                extend(('\\%3o' % b).encode('ASCII'))
+            else:
+                append(b)
+        return s_new.decode('ISO-8859-1')
+    else:
+        l = []
+        append = l.append
+        for c in s:
+            o = ord(c)
+            if o >= 128:
+                append('\\%3o' % o)
+            else:
+                append(c)
+        return join_bytes(l).decode('ISO-8859-1')
+
+def split_string_literal(s, limit=2000):
+    # MSVC can't handle long string literals.
+    if len(s) < limit:
+        return s
+    else:
+        start = 0
+        chunks = []
+        while start < len(s):
+            end = start + limit
+            if len(s) > end-4 and '\\' in s[end-4:end]:
+                end -= 4 - s[end-4:end].find('\\') # just before the backslash
+                while s[end-1] == '\\':
+                    end -= 1
+                    if end == start:
+                        # must have been a long line of backslashes
+                        end = start + limit - (limit % 2) - 4
+                        break
+            chunks.append(s[start:end])
+            start = end
+        return '""'.join(chunks)
+
+def encode_pyunicode_string(s):
+    """Create Py_UNICODE[] representation of a given unicode string.
+    """
+    s = list(map(ord, s)) + [0]
+
+    if sys.maxunicode >= 0x10000:  # Wide build or Py3.3
+        utf16, utf32 = [], s
+        for code_point in s:
+            if code_point >= 0x10000:  # outside of BMP
+                high, low = divmod(code_point - 0x10000, 1024)
+                utf16.append(high + 0xD800)
+                utf16.append(low + 0xDC00)
+            else:
+                utf16.append(code_point)
+    else:
+        utf16, utf32 = s, []
+        for code_unit in s:
+            if 0xDC00 <= code_unit <= 0xDFFF and utf32 and 0xD800 <= utf32[-1] <= 0xDBFF:
+                high, low = utf32[-1], code_unit
+                utf32[-1] = ((high & 0x3FF) << 10) + (low & 0x3FF) + 0x10000
+            else:
+                utf32.append(code_unit)
+
+    if utf16 == utf32:
+        utf16 = []
+    return ",".join(map(_unicode, utf16)), ",".join(map(_unicode, utf32))

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestBuffer.py

@@ -0,0 +1,105 @@
+from Cython.TestUtils import CythonTest
+import Cython.Compiler.Errors as Errors
+from Cython.Compiler.Nodes import *
+from Cython.Compiler.ParseTreeTransforms import *
+from Cython.Compiler.Buffer import *
+
+
+class TestBufferParsing(CythonTest):
+    # First, we only test the raw parser, i.e.
+    # the number and contents of arguments are NOT checked.
+    # However "dtype"/the first positional argument is special-cased
+    #  to parse a type argument rather than an expression
+
+    def parse(self, s):
+        return self.should_not_fail(lambda: self.fragment(s)).root
+
+    def not_parseable(self, expected_error, s):
+        e = self.should_fail(lambda: self.fragment(s),  Errors.CompileError)
+        self.assertEqual(expected_error, e.message_only)
+
+    def test_basic(self):
+        t = self.parse(u"cdef object[float, 4, ndim=2, foo=foo] x")
+        bufnode = t.stats[0].base_type
+        self.assertTrue(isinstance(bufnode, TemplatedTypeNode))
+        self.assertEqual(2, len(bufnode.positional_args))
+#        print bufnode.dump()
+        # should put more here...
+
+    def test_type_pos(self):
+        self.parse(u"cdef object[short unsigned int, 3] x")
+
+    def test_type_keyword(self):
+        self.parse(u"cdef object[foo=foo, dtype=short unsigned int] x")
+
+    def test_pos_after_key(self):
+        self.not_parseable("Non-keyword arg following keyword arg",
+                           u"cdef object[foo=1, 2] x")
+
+
+# See also tests/error/e_bufaccess.pyx and tets/run/bufaccess.pyx
+# THESE TESTS ARE NOW DISABLED, the code they test was pretty much
+# refactored away
+class TestBufferOptions(CythonTest):
+    # Tests the full parsing of the options within the brackets
+
+    def nonfatal_error(self, error):
+        # We're passing self as context to transform to trap this
+        self.error = error
+        self.assertTrue(self.expect_error)
+
+    def parse_opts(self, opts, expect_error=False):
+        assert opts != ""
+        s = u"def f():\n  cdef object[%s] x" % opts
+        self.expect_error = expect_error
+        root = self.fragment(s, pipeline=[NormalizeTree(self), PostParse(self)]).root
+        if not expect_error:
+            vardef = root.stats[0].body.stats[0]
+            assert isinstance(vardef, CVarDefNode) # use normal assert as this is to validate the test code
+            buftype = vardef.base_type
+            self.assertTrue(isinstance(buftype, TemplatedTypeNode))
+            self.assertTrue(isinstance(buftype.base_type_node, CSimpleBaseTypeNode))
+            self.assertEqual(u"object", buftype.base_type_node.name)
+            return buftype
+        else:
+            self.assertTrue(len(root.stats[0].body.stats) == 0)
+
+    def non_parse(self, expected_err, opts):
+        self.parse_opts(opts, expect_error=True)
+#        e = self.should_fail(lambda: self.parse_opts(opts))
+        self.assertEqual(expected_err, self.error.message_only)
+
+    def __test_basic(self):
+        buf = self.parse_opts(u"unsigned short int, 3")
+        self.assertTrue(isinstance(buf.dtype_node, CSimpleBaseTypeNode))
+        self.assertTrue(buf.dtype_node.signed == 0 and buf.dtype_node.longness == -1)
+        self.assertEqual(3, buf.ndim)
+
+    def __test_dict(self):
+        buf = self.parse_opts(u"ndim=3, dtype=unsigned short int")
+        self.assertTrue(isinstance(buf.dtype_node, CSimpleBaseTypeNode))
+        self.assertTrue(buf.dtype_node.signed == 0 and buf.dtype_node.longness == -1)
+        self.assertEqual(3, buf.ndim)
+
+    def __test_ndim(self):
+        self.parse_opts(u"int, 2")
+        self.non_parse(ERR_BUF_NDIM, u"int, 'a'")
+        self.non_parse(ERR_BUF_NDIM, u"int, -34")
+
+    def __test_use_DEF(self):
+        t = self.fragment(u"""
+        DEF ndim = 3
+        def f():
+            cdef object[int, ndim] x
+            cdef object[ndim=ndim, dtype=int] y
+        """, pipeline=[NormalizeTree(self), PostParse(self)]).root
+        stats = t.stats[0].body.stats
+        self.assertTrue(stats[0].base_type.ndim == 3)
+        self.assertTrue(stats[1].base_type.ndim == 3)
+
+    # add exotic and impossible combinations as they come along...
+
+if __name__ == '__main__':
+    import unittest
+    unittest.main()
+

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestCmdLine.py

@@ -0,0 +1,170 @@
+
+import sys
+import re
+from unittest import TestCase
+try:
+    from StringIO import StringIO
+except ImportError:
+    from io import StringIO  # doesn't accept 'str' in Py2
+
+from .. import Options
+from ..CmdLine import parse_command_line
+
+
+def check_global_options(expected_options, white_list=[]):
+    """
+    returns error message of "" if check Ok
+    """
+    no_value = object()
+    for name, orig_value in expected_options.items():
+        if name not in white_list:
+            if getattr(Options, name, no_value) != orig_value:
+                return "error in option " + name
+    return ""
+
+
+class CmdLineParserTest(TestCase):
+    def setUp(self):
+        backup = {}
+        for name, value in vars(Options).items():
+            backup[name] = value
+        self._options_backup = backup
+
+    def tearDown(self):
+        no_value = object()
+        for name, orig_value in self._options_backup.items():
+            if getattr(Options, name, no_value) != orig_value:
+                setattr(Options, name, orig_value)
+
+    def check_default_global_options(self, white_list=[]):
+        self.assertEqual(check_global_options(self._options_backup, white_list), "")
+
+    def check_default_options(self, options, white_list=[]):
+        from ..Main import CompilationOptions, default_options
+        default_options = CompilationOptions(default_options)
+        no_value = object()
+        for name in default_options.__dict__.keys():
+            if name not in white_list:
+                self.assertEqual(getattr(options, name, no_value), getattr(default_options, name), msg="error in option " + name)
+
+    def test_short_options(self):
+        options, sources = parse_command_line([
+            '-V', '-l', '-+', '-t', '-v', '-v', '-v', '-p', '-D', '-a', '-3',
+        ])
+        self.assertFalse(sources)
+        self.assertTrue(options.show_version)
+        self.assertTrue(options.use_listing_file)
+        self.assertTrue(options.cplus)
+        self.assertTrue(options.timestamps)
+        self.assertTrue(options.verbose >= 3)
+        self.assertTrue(Options.embed_pos_in_docstring)
+        self.assertFalse(Options.docstrings)
+        self.assertTrue(Options.annotate)
+        self.assertEqual(options.language_level, 3)
+
+        options, sources = parse_command_line([
+            '-f', '-2', 'source.pyx',
+        ])
+        self.assertTrue(sources)
+        self.assertTrue(len(sources) == 1)
+        self.assertFalse(options.timestamps)
+        self.assertEqual(options.language_level, 2)
+
+    def test_long_options(self):
+        options, sources = parse_command_line([
+            '--version', '--create-listing', '--cplus', '--embed', '--timestamps',
+            '--verbose', '--verbose', '--verbose',
+            '--embed-positions', '--no-docstrings', '--annotate', '--lenient',
+        ])
+        self.assertFalse(sources)
+        self.assertTrue(options.show_version)
+        self.assertTrue(options.use_listing_file)
+        self.assertTrue(options.cplus)
+        self.assertEqual(Options.embed, 'main')
+        self.assertTrue(options.timestamps)
+        self.assertTrue(options.verbose >= 3)
+        self.assertTrue(Options.embed_pos_in_docstring)
+        self.assertFalse(Options.docstrings)
+        self.assertTrue(Options.annotate)
+        self.assertFalse(Options.error_on_unknown_names)
+        self.assertFalse(Options.error_on_uninitialized)
+
+        options, sources = parse_command_line([
+            '--force', 'source.pyx',
+        ])
+        self.assertTrue(sources)
+        self.assertTrue(len(sources) == 1)
+        self.assertFalse(options.timestamps)
+
+    def test_options_with_values(self):
+        options, sources = parse_command_line([
+            '--embed=huhu',
+            '-I/test/include/dir1', '--include-dir=/test/include/dir2',
+            '--include-dir', '/test/include/dir3',
+            '--working=/work/dir',
+            'source.pyx',
+            '--output-file=/output/dir',
+            '--pre-import=/pre/import',
+            '--cleanup=3',
+            '--annotate-coverage=cov.xml',
+            '--gdb-outdir=/gdb/outdir',
+            '--directive=wraparound=false',
+        ])
+        self.assertEqual(sources, ['source.pyx'])
+        self.assertEqual(Options.embed, 'huhu')
+        self.assertEqual(options.include_path, ['/test/include/dir1', '/test/include/dir2', '/test/include/dir3'])
+        self.assertEqual(options.working_path, '/work/dir')
+        self.assertEqual(options.output_file, '/output/dir')
+        self.assertEqual(Options.pre_import, '/pre/import')
+        self.assertEqual(Options.generate_cleanup_code, 3)
+        self.assertTrue(Options.annotate)
+        self.assertEqual(Options.annotate_coverage_xml, 'cov.xml')
+        self.assertTrue(options.gdb_debug)
+        self.assertEqual(options.output_dir, '/gdb/outdir')
+
+    def test_module_name(self):
+        options, sources = parse_command_line([
+            'source.pyx'
+        ])
+        self.assertEqual(options.module_name, None)
+        self.check_default_global_options()
+        self.check_default_options(options)
+        options, sources = parse_command_line([
+            '--module-name', 'foo.bar',
+            'source.pyx'
+        ])
+        self.assertEqual(options.module_name, 'foo.bar')
+        self.check_default_global_options()
+        self.check_default_options(options, ['module_name'])
+
+    def test_errors(self):
+        def error(args, regex=None):
+            old_stderr = sys.stderr
+            stderr = sys.stderr = StringIO()
+            try:
+                self.assertRaises(SystemExit, parse_command_line, list(args))
+            finally:
+                sys.stderr = old_stderr
+            msg = stderr.getvalue().strip()
+            self.assertTrue(msg)
+            if regex:
+                self.assertTrue(re.search(regex, msg),
+                                '"%s" does not match search "%s"' %
+                                (msg, regex))
+
+        error(['-1'],
+              'Unknown compiler flag: -1')
+        error(['-I'])
+        error(['--version=-a'])
+        error(['--version=--annotate=true'])
+        error(['--working'])
+        error(['--verbose=1'])
+        error(['--cleanup'])
+        error(['--debug-disposal-code-wrong-name', 'file3.pyx'],
+              "Unknown debug flag: debug_disposal_code_wrong_name")
+        error(['--module-name', 'foo.pyx'])
+        error(['--module-name', 'foo.bar'])
+        error(['--module-name', 'foo.bar', 'foo.pyx', 'bar.pyx'],
+              "Only one source file allowed when using --module-name")
+        error(['--module-name', 'foo.bar', '--timestamps', 'foo.pyx'],
+              "Cannot use --module-name with --timestamps")

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestFlowControl.py

@@ -0,0 +1,68 @@
+
+from __future__ import absolute_import
+
+from copy import deepcopy
+from unittest import TestCase
+
+from Cython.Compiler.FlowControl import (
+    NameAssignment, StaticAssignment, Argument, NameDeletion)
+
+
+class FakeType(object):
+    is_pyobject = True
+
+
+class FakeNode(object):
+    pos = ('filename.pyx', 1, 2)
+    cf_state = None
+    type = FakeType()
+
+    def infer_type(self, scope):
+        return self.type
+
+
+class FakeEntry(object):
+    type = FakeType()
+
+
+class TestGraph(TestCase):
+    def test_deepcopy(self):
+        lhs, rhs = FakeNode(), FakeNode()
+        entry = FakeEntry()
+        entry.pos = lhs.pos
+
+        name_ass = NameAssignment(lhs, rhs, entry)
+        ass = deepcopy(name_ass)
+        self.assertTrue(ass.lhs)
+        self.assertTrue(ass.rhs)
+        self.assertTrue(ass.entry)
+        self.assertEqual(ass.pos, name_ass.pos)
+        self.assertFalse(ass.is_arg)
+        self.assertFalse(ass.is_deletion)
+
+        static_ass = StaticAssignment(entry)
+        ass = deepcopy(static_ass)
+        self.assertTrue(ass.lhs)
+        self.assertTrue(ass.rhs)
+        self.assertTrue(ass.entry)
+        self.assertEqual(ass.pos, static_ass.pos)
+        self.assertFalse(ass.is_arg)
+        self.assertFalse(ass.is_deletion)
+
+        arg_ass = Argument(lhs, rhs, entry)
+        ass = deepcopy(arg_ass)
+        self.assertTrue(ass.lhs)
+        self.assertTrue(ass.rhs)
+        self.assertTrue(ass.entry)
+        self.assertEqual(ass.pos, arg_ass.pos)
+        self.assertTrue(ass.is_arg)
+        self.assertFalse(ass.is_deletion)
+
+        name_del = NameDeletion(lhs, entry)
+        ass = deepcopy(name_del)
+        self.assertTrue(ass.lhs)
+        self.assertTrue(ass.rhs)
+        self.assertTrue(ass.entry)
+        self.assertEqual(ass.pos, name_del.pos)
+        self.assertFalse(ass.is_arg)
+        self.assertTrue(ass.is_deletion)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestGrammar.py

@@ -0,0 +1,129 @@
+# mode: run
+# tag: syntax
+
+"""
+Uses TreeFragment to test invalid syntax.
+"""
+
+from __future__ import absolute_import
+
+from ...TestUtils import CythonTest
+from ..Errors import CompileError
+from .. import ExprNodes
+
+# Copied from CPython's test_grammar.py
+VALID_UNDERSCORE_LITERALS = [
+    '0_0_0',
+    '4_2',
+    '1_0000_0000',
+    '0b1001_0100',
+    '0xffff_ffff',
+    '0o5_7_7',
+    '1_00_00.5',
+    '1_00_00.5j',
+    '1_00_00.5e5',
+    '1_00_00j',
+    '1_00_00e5_1',
+    '1e1_0',
+    '.1_4',
+    '.1_4e1',
+    '.1_4j',
+]
+
+# Copied from CPython's test_grammar.py
+INVALID_UNDERSCORE_LITERALS = [
+    # Trailing underscores:
+    '0_',
+    '42_',
+    '1.4j_',
+    '0b1_',
+    '0xf_',
+    '0o5_',
+    # Underscores in the base selector:
+    '0_b0',
+    '0_xf',
+    '0_o5',
+    # Underscore right after the base selector:
+    '0b_0',
+    '0x_f',
+    '0o_5',
+    # Old-style octal, still disallowed:
+    #'0_7',
+    #'09_99',
+    # Special case with exponent:
+    '0 if 1_Else 1',
+    # Underscore right before a dot:
+    '1_.4',
+    '1_.4j',
+    # Underscore right after a dot:
+    '1._4',
+    '1._4j',
+    '._5',
+    # Underscore right after a sign:
+    '1.0e+_1',
+    # Multiple consecutive underscores:
+    '4_______2',
+    '0.1__4',
+    '0b1001__0100',
+    '0xffff__ffff',
+    '0o5__77',
+    '1e1__0',
+    # Underscore right before j:
+    '1.4_j',
+    '1.4e5_j',
+    # Underscore right before e:
+    '1_e1',
+    '1.4_e1',
+    # Underscore right after e:
+    '1e_1',
+    '1.4e_1',
+    # Whitespace in literals
+    '1_ 2',
+    '1 _2',
+    '1_2.2_ 1',
+    '1_2.2 _1',
+    '1_2e _1',
+    '1_2e2 _1',
+    '1_2e 2_1',
+]
+
+
+class TestGrammar(CythonTest):
+
+    def test_invalid_number_literals(self):
+        for literal in INVALID_UNDERSCORE_LITERALS:
+            for expression in ['%s', '1 + %s', '%s + 1', '2 * %s', '%s * 2']:
+                code = 'x = ' + expression % literal
+                try:
+                    self.fragment(u'''\
+                    # cython: language_level=3
+                    ''' + code)
+                except CompileError as exc:
+                    assert code in [s.strip() for s in str(exc).splitlines()], str(exc)
+                else:
+                    assert False, "Invalid Cython code '%s' failed to raise an exception" % code
+
+    def test_valid_number_literals(self):
+        for literal in VALID_UNDERSCORE_LITERALS:
+            for i, expression in enumerate(['%s', '1 + %s', '%s + 1', '2 * %s', '%s * 2']):
+                code = 'x = ' + expression % literal
+                node = self.fragment(u'''\
+                    # cython: language_level=3
+                    ''' + code).root
+                assert node is not None
+
+                literal_node = node.stats[0].rhs  # StatListNode([SingleAssignmentNode('x', expr)])
+                if i > 0:
+                    # Add/MulNode() -> literal is first or second operand
+                    literal_node = literal_node.operand2 if i % 2 else literal_node.operand1
+                if 'j' in literal or 'J' in literal:
+                    assert isinstance(literal_node, ExprNodes.ImagNode)
+                elif '.' in literal or 'e' in literal or 'E' in literal and not ('0x' in literal or '0X' in literal):
+                    assert isinstance(literal_node, ExprNodes.FloatNode)
+                else:
+                    assert isinstance(literal_node, ExprNodes.IntNode)
+
+
+if __name__ == "__main__":
+    import unittest
+    unittest.main()

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestMemView.py

@@ -0,0 +1,71 @@
+from Cython.TestUtils import CythonTest
+import Cython.Compiler.Errors as Errors
+from Cython.Compiler.Nodes import *
+from Cython.Compiler.ParseTreeTransforms import *
+from Cython.Compiler.Buffer import *
+
+
+class TestMemviewParsing(CythonTest):
+
+    def parse(self, s):
+        return self.should_not_fail(lambda: self.fragment(s)).root
+
+    def not_parseable(self, expected_error, s):
+        e = self.should_fail(lambda: self.fragment(s),  Errors.CompileError)
+        self.assertEqual(expected_error, e.message_only)
+
+    def test_default_1dim(self):
+        self.parse(u"cdef int[:] x")
+        self.parse(u"cdef short int[:] x")
+
+    def test_default_ndim(self):
+        self.parse(u"cdef int[:,:,:,:,:] x")
+        self.parse(u"cdef unsigned long int[:,:,:,:,:] x")
+        self.parse(u"cdef unsigned int[:,:,:,:,:] x")
+
+    def test_zero_offset(self):
+        self.parse(u"cdef long double[0:] x")
+        self.parse(u"cdef int[0:] x")
+
+    def test_zero_offset_ndim(self):
+        self.parse(u"cdef int[0:,0:,0:,0:] x")
+
+    def test_def_arg(self):
+        self.parse(u"def foo(int[:,:] x): pass")
+
+    def test_cdef_arg(self):
+        self.parse(u"cdef foo(int[:,:] x): pass")
+
+    def test_general_slice(self):
+        self.parse(u'cdef float[::ptr, ::direct & contig, 0::full & strided] x')
+
+    def test_non_slice_memview(self):
+        self.not_parseable(u"An axis specification in memoryview declaration does not have a ':'.",
+                u"cdef double[:foo, bar] x")
+        self.not_parseable(u"An axis specification in memoryview declaration does not have a ':'.",
+                u"cdef double[0:foo, bar] x")
+
+    def test_basic(self):
+        t = self.parse(u"cdef int[:] x")
+        memv_node = t.stats[0].base_type
+        self.assertTrue(isinstance(memv_node, MemoryViewSliceTypeNode))
+
+    # we also test other similar declarations (buffers, anonymous C arrays)
+    # since the parsing has to distinguish between them.
+
+    def disable_test_no_buf_arg(self): # TODO
+        self.not_parseable(u"Expected ']'",
+                u"cdef extern foo(object[int, ndim=2])")
+
+    def disable_test_parse_sizeof(self): # TODO
+        self.parse(u"sizeof(int[NN])")
+        self.parse(u"sizeof(int[])")
+        self.parse(u"sizeof(int[][NN])")
+        self.not_parseable(u"Expected an identifier or literal",
+                u"sizeof(int[:NN])")
+        self.not_parseable(u"Expected ']'",
+                u"sizeof(foo[dtype=bar]")
+
+if __name__ == '__main__':
+    import unittest
+    unittest.main()

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestParseTreeTransforms.py

@@ -0,0 +1,289 @@
+import os.path
+import unittest
+
+from Cython.TestUtils import TransformTest
+from Cython.Compiler.ParseTreeTransforms import *
+from Cython.Compiler.ParseTreeTransforms import _calculate_pickle_checksums
+from Cython.Compiler.Nodes import *
+from Cython.Compiler import Main, Symtab
+
+
+class TestNormalizeTree(TransformTest):
+    def test_parserbehaviour_is_what_we_coded_for(self):
+        t = self.fragment(u"if x: y").root
+        self.assertLines(u"""
+(root): StatListNode
+  stats[0]: IfStatNode
+    if_clauses[0]: IfClauseNode
+      condition: NameNode
+      body: ExprStatNode
+        expr: NameNode
+""", self.treetypes(t))
+
+    def test_wrap_singlestat(self):
+        t = self.run_pipeline([NormalizeTree(None)], u"if x: y")
+        self.assertLines(u"""
+(root): StatListNode
+  stats[0]: IfStatNode
+    if_clauses[0]: IfClauseNode
+      condition: NameNode
+      body: StatListNode
+        stats[0]: ExprStatNode
+          expr: NameNode
+""", self.treetypes(t))
+
+    def test_wrap_multistat(self):
+        t = self.run_pipeline([NormalizeTree(None)], u"""
+            if z:
+                x
+                y
+        """)
+        self.assertLines(u"""
+(root): StatListNode
+  stats[0]: IfStatNode
+    if_clauses[0]: IfClauseNode
+      condition: NameNode
+      body: StatListNode
+        stats[0]: ExprStatNode
+          expr: NameNode
+        stats[1]: ExprStatNode
+          expr: NameNode
+""", self.treetypes(t))
+
+    def test_statinexpr(self):
+        t = self.run_pipeline([NormalizeTree(None)], u"""
+            a, b = x, y
+        """)
+        self.assertLines(u"""
+(root): StatListNode
+  stats[0]: SingleAssignmentNode
+    lhs: TupleNode
+      args[0]: NameNode
+      args[1]: NameNode
+    rhs: TupleNode
+      args[0]: NameNode
+      args[1]: NameNode
+""", self.treetypes(t))
+
+    def test_wrap_offagain(self):
+        t = self.run_pipeline([NormalizeTree(None)], u"""
+            x
+            y
+            if z:
+                x
+        """)
+        self.assertLines(u"""
+(root): StatListNode
+  stats[0]: ExprStatNode
+    expr: NameNode
+  stats[1]: ExprStatNode
+    expr: NameNode
+  stats[2]: IfStatNode
+    if_clauses[0]: IfClauseNode
+      condition: NameNode
+      body: StatListNode
+        stats[0]: ExprStatNode
+          expr: NameNode
+""", self.treetypes(t))
+
+
+    def test_pass_eliminated(self):
+        t = self.run_pipeline([NormalizeTree(None)], u"pass")
+        self.assertTrue(len(t.stats) == 0)
+
+class TestWithTransform(object): # (TransformTest): # Disabled!
+
+    def test_simplified(self):
+        t = self.run_pipeline([WithTransform(None)], u"""
+        with x:
+            y = z ** 3
+        """)
+
+        self.assertCode(u"""
+
+        $0_0 = x
+        $0_2 = $0_0.__exit__
+        $0_0.__enter__()
+        $0_1 = True
+        try:
+            try:
+                $1_0 = None
+                y = z ** 3
+            except:
+                $0_1 = False
+                if (not $0_2($1_0)):
+                    raise
+        finally:
+            if $0_1:
+                $0_2(None, None, None)
+
+        """, t)
+
+    def test_basic(self):
+        t = self.run_pipeline([WithTransform(None)], u"""
+        with x as y:
+            y = z ** 3
+        """)
+        self.assertCode(u"""
+
+        $0_0 = x
+        $0_2 = $0_0.__exit__
+        $0_3 = $0_0.__enter__()
+        $0_1 = True
+        try:
+            try:
+                $1_0 = None
+                y = $0_3
+                y = z ** 3
+            except:
+                $0_1 = False
+                if (not $0_2($1_0)):
+                    raise
+        finally:
+            if $0_1:
+                $0_2(None, None, None)
+
+        """, t)
+
+
+class TestInterpretCompilerDirectives(TransformTest):
+    """
+    This class tests the parallel directives AST-rewriting and importing.
+    """
+
+    # Test the parallel directives (c)importing
+
+    import_code = u"""
+        cimport cython.parallel
+        cimport cython.parallel as par
+        from cython cimport parallel as par2
+        from cython cimport parallel
+
+        from cython.parallel cimport threadid as tid
+        from cython.parallel cimport threadavailable as tavail
+        from cython.parallel cimport prange
+    """
+
+    expected_directives_dict = {
+        u'cython.parallel': u'cython.parallel',
+        u'par': u'cython.parallel',
+        u'par2': u'cython.parallel',
+        u'parallel': u'cython.parallel',
+
+        u"tid": u"cython.parallel.threadid",
+        u"tavail": u"cython.parallel.threadavailable",
+        u"prange": u"cython.parallel.prange",
+    }
+
+
+    def setUp(self):
+        super(TestInterpretCompilerDirectives, self).setUp()
+
+        compilation_options = Main.CompilationOptions(Main.default_options)
+        ctx = compilation_options.create_context()
+
+        transform = InterpretCompilerDirectives(ctx, ctx.compiler_directives)
+        transform.module_scope = Symtab.ModuleScope('__main__', None, ctx)
+        self.pipeline = [transform]
+
+        self.debug_exception_on_error = DebugFlags.debug_exception_on_error
+
+    def tearDown(self):
+        DebugFlags.debug_exception_on_error = self.debug_exception_on_error
+
+    def test_parallel_directives_cimports(self):
+        self.run_pipeline(self.pipeline, self.import_code)
+        parallel_directives = self.pipeline[0].parallel_directives
+        self.assertEqual(parallel_directives, self.expected_directives_dict)
+
+    def test_parallel_directives_imports(self):
+        self.run_pipeline(self.pipeline,
+                          self.import_code.replace(u'cimport', u'import'))
+        parallel_directives = self.pipeline[0].parallel_directives
+        self.assertEqual(parallel_directives, self.expected_directives_dict)
+
+
+# TODO: Re-enable once they're more robust.
+if False:
+    from Cython.Debugger import DebugWriter
+    from Cython.Debugger.Tests.TestLibCython import DebuggerTestCase
+else:
+    # skip test, don't let it inherit unittest.TestCase
+    DebuggerTestCase = object
+
+
+class TestDebugTransform(DebuggerTestCase):
+
+    def elem_hasattrs(self, elem, attrs):
+        return all(attr in elem.attrib for attr in attrs)
+
+    def test_debug_info(self):
+        try:
+            assert os.path.exists(self.debug_dest)
+
+            t = DebugWriter.etree.parse(self.debug_dest)
+            # the xpath of the standard ElementTree is primitive, don't use
+            # anything fancy
+            L = list(t.find('/Module/Globals'))
+            assert L
+            xml_globals = dict((e.attrib['name'], e.attrib['type']) for e in L)
+            self.assertEqual(len(L), len(xml_globals))
+
+            L = list(t.find('/Module/Functions'))
+            assert L
+            xml_funcs = dict((e.attrib['qualified_name'], e) for e in L)
+            self.assertEqual(len(L), len(xml_funcs))
+
+            # test globals
+            self.assertEqual('CObject', xml_globals.get('c_var'))
+            self.assertEqual('PythonObject', xml_globals.get('python_var'))
+
+            # test functions
+            funcnames = ('codefile.spam', 'codefile.ham', 'codefile.eggs',
+                         'codefile.closure', 'codefile.inner')
+            required_xml_attrs = 'name', 'cname', 'qualified_name'
+            assert all(f in xml_funcs for f in funcnames)
+            spam, ham, eggs = [xml_funcs[funcname] for funcname in funcnames]
+
+            self.assertEqual(spam.attrib['name'], 'spam')
+            self.assertNotEqual('spam', spam.attrib['cname'])
+            assert self.elem_hasattrs(spam, required_xml_attrs)
+
+            # test locals of functions
+            spam_locals = list(spam.find('Locals'))
+            assert spam_locals
+            spam_locals.sort(key=lambda e: e.attrib['name'])
+            names = [e.attrib['name'] for e in spam_locals]
+            self.assertEqual(list('abcd'), names)
+            assert self.elem_hasattrs(spam_locals[0], required_xml_attrs)
+
+            # test arguments of functions
+            spam_arguments = list(spam.find('Arguments'))
+            assert spam_arguments
+            self.assertEqual(1, len(list(spam_arguments)))
+
+            # test step-into functions
+            step_into = spam.find('StepIntoFunctions')
+            spam_stepinto = [x.attrib['name'] for x in step_into]
+            assert spam_stepinto
+            self.assertEqual(2, len(spam_stepinto))
+            assert 'puts' in spam_stepinto
+            assert 'some_c_function' in spam_stepinto
+        except:
+            f = open(self.debug_dest)
+            try:
+                print(f.read())
+            finally:
+                f.close()
+            raise
+
+
+class TestAnalyseDeclarationsTransform(unittest.TestCase):
+    def test_calculate_pickle_checksums(self):
+        checksums = _calculate_pickle_checksums(['member1', 'member2', 'member3'])
+        assert 2 <= len(checksums) <= 3, checksums  # expecting ['0xc0af380' (MD5), '0x0c75bd4', '0xa7a7b94']
+
+
+if __name__ == "__main__":
+    import unittest
+    unittest.main()

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestSignatureMatching.py

@@ -0,0 +1,73 @@
+import unittest
+
+from Cython.Compiler import PyrexTypes as pt
+from Cython.Compiler.ExprNodes import NameNode
+from Cython.Compiler.PyrexTypes import CFuncTypeArg
+
+def cfunctype(*arg_types):
+    return pt.CFuncType(pt.c_int_type,
+        [ CFuncTypeArg("name", arg_type, None) for arg_type in arg_types ])
+
+def cppclasstype(name, base_classes):
+    return pt.CppClassType(name, None, 'CPP_'+name, base_classes)
+
+class SignatureMatcherTest(unittest.TestCase):
+    """
+    Test the signature matching algorithm for overloaded signatures.
+    """
+    def assertMatches(self, expected_type, arg_types, functions):
+        match = pt.best_match(arg_types, functions)
+        if expected_type is not None:
+            self.assertNotEqual(None, match)
+        self.assertEqual(expected_type, match.type)
+
+    def test_cpp_reference_single_arg(self):
+        function_types = [
+            cfunctype(pt.CReferenceType(pt.c_int_type)),
+            cfunctype(pt.CReferenceType(pt.c_long_type)),
+            cfunctype(pt.CReferenceType(pt.c_double_type)),
+            ]
+
+        functions = [ NameNode(None, type=t) for t in function_types ]
+        self.assertMatches(function_types[0], [pt.c_int_type], functions)
+        self.assertMatches(function_types[1], [pt.c_long_type], functions)
+        self.assertMatches(function_types[2], [pt.c_double_type], functions)
+
+    def test_cpp_reference_two_args(self):
+        function_types = [
+            cfunctype(
+                pt.CReferenceType(pt.c_int_type), pt.CReferenceType(pt.c_long_type)),
+            cfunctype(
+                pt.CReferenceType(pt.c_long_type), pt.CReferenceType(pt.c_long_type)),
+            ]
+
+        functions = [ NameNode(None, type=t) for t in function_types ]
+        self.assertMatches(function_types[0], [pt.c_int_type, pt.c_long_type], functions)
+        self.assertMatches(function_types[1], [pt.c_long_type, pt.c_long_type], functions)
+        self.assertMatches(function_types[1], [pt.c_long_type, pt.c_int_type], functions)
+
+    def test_cpp_reference_cpp_class(self):
+        classes = [ cppclasstype("Test%d"%i, []) for i in range(2) ]
+        function_types = [
+            cfunctype(pt.CReferenceType(classes[0])),
+            cfunctype(pt.CReferenceType(classes[1])),
+            ]
+
+        functions = [ NameNode(None, type=t) for t in function_types ]
+        self.assertMatches(function_types[0], [classes[0]], functions)
+        self.assertMatches(function_types[1], [classes[1]], functions)
+
+    def test_cpp_reference_cpp_class_and_int(self):
+        classes = [ cppclasstype("Test%d"%i, []) for i in range(2) ]
+        function_types = [
+            cfunctype(pt.CReferenceType(classes[0]), pt.c_int_type),
+            cfunctype(pt.CReferenceType(classes[0]), pt.c_long_type),
+            cfunctype(pt.CReferenceType(classes[1]), pt.c_int_type),
+            cfunctype(pt.CReferenceType(classes[1]), pt.c_long_type),
+            ]
+
+        functions = [ NameNode(None, type=t) for t in function_types ]
+        self.assertMatches(function_types[0], [classes[0], pt.c_int_type], functions)
+        self.assertMatches(function_types[1], [classes[0], pt.c_long_type], functions)
+        self.assertMatches(function_types[2], [classes[1], pt.c_int_type], functions)
+        self.assertMatches(function_types[3], [classes[1], pt.c_long_type], functions)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestStringEncoding.py

@@ -0,0 +1,44 @@
+# -*- coding: utf-8 -*-
+
+import sys
+import unittest
+
+import Cython.Compiler.StringEncoding as StringEncoding
+
+
+class StringEncodingTest(unittest.TestCase):
+    """
+    Test the StringEncoding module.
+    """
+    def test_string_contains_lone_surrogates(self):
+        self.assertFalse(StringEncoding.string_contains_lone_surrogates(u"abc"))
+        self.assertFalse(StringEncoding.string_contains_lone_surrogates(u"\uABCD"))
+        self.assertFalse(StringEncoding.string_contains_lone_surrogates(u"\N{SNOWMAN}"))
+
+        # This behaves differently in Py2 when freshly parsed and read from a .pyc file,
+        # but it seems to be a marshalling bug in Py2, which doesn't hurt us in Cython.
+        if sys.version_info[0] != 2:
+            self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uD800\uDFFF"))
+
+        # In Py2 with 16bit Unicode, the following is indistinguishable from the 32bit character.
+        obfuscated_surrogate_pair = (u"\uDFFF" + "\uD800")[::-1]
+        if sys.version_info[0] == 2 and sys.maxunicode == 65565:
+            self.assertFalse(StringEncoding.string_contains_lone_surrogates(obfuscated_surrogate_pair))
+        else:
+            self.assertTrue(StringEncoding.string_contains_lone_surrogates(obfuscated_surrogate_pair))
+
+        self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uD800"))
+        self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uDFFF"))
+        self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uDFFF\uD800"))
+        self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uD800x\uDFFF"))
+
+    def test_string_contains_surrogates(self):
+        self.assertFalse(StringEncoding.string_contains_surrogates(u"abc"))
+        self.assertFalse(StringEncoding.string_contains_surrogates(u"\uABCD"))
+        self.assertFalse(StringEncoding.string_contains_surrogates(u"\N{SNOWMAN}"))
+
+        self.assertTrue(StringEncoding.string_contains_surrogates(u"\uD800"))
+        self.assertTrue(StringEncoding.string_contains_surrogates(u"\uDFFF"))
+        self.assertTrue(StringEncoding.string_contains_surrogates(u"\uD800\uDFFF"))
+        self.assertTrue(StringEncoding.string_contains_surrogates(u"\uDFFF\uD800"))
+        self.assertTrue(StringEncoding.string_contains_surrogates(u"\uD800x\uDFFF"))

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestTreeFragment.py

@@ -0,0 +1,64 @@
+from Cython.TestUtils import CythonTest
+from Cython.Compiler.TreeFragment import *
+from Cython.Compiler.Nodes import *
+from Cython.Compiler.UtilNodes import *
+import Cython.Compiler.Naming as Naming
+
+class TestTreeFragments(CythonTest):
+
+    def test_basic(self):
+        F = self.fragment(u"x = 4")
+        T = F.copy()
+        self.assertCode(u"x = 4", T)
+
+    def test_copy_is_taken(self):
+        F = self.fragment(u"if True: x = 4")
+        T1 = F.root
+        T2 = F.copy()
+        self.assertEqual("x", T2.stats[0].if_clauses[0].body.lhs.name)
+        T2.stats[0].if_clauses[0].body.lhs.name = "other"
+        self.assertEqual("x", T1.stats[0].if_clauses[0].body.lhs.name)
+
+    def test_substitutions_are_copied(self):
+        T = self.fragment(u"y + y").substitute({"y": NameNode(pos=None, name="x")})
+        self.assertEqual("x", T.stats[0].expr.operand1.name)
+        self.assertEqual("x", T.stats[0].expr.operand2.name)
+        self.assertTrue(T.stats[0].expr.operand1 is not T.stats[0].expr.operand2)
+
+    def test_substitution(self):
+        F = self.fragment(u"x = 4")
+        y = NameNode(pos=None, name=u"y")
+        T = F.substitute({"x" : y})
+        self.assertCode(u"y = 4", T)
+
+    def test_exprstat(self):
+        F = self.fragment(u"PASS")
+        pass_stat = PassStatNode(pos=None)
+        T = F.substitute({"PASS" : pass_stat})
+        self.assertTrue(isinstance(T.stats[0], PassStatNode), T)
+
+    def test_pos_is_transferred(self):
+        F = self.fragment(u"""
+        x = y
+        x = u * v ** w
+        """)
+        T = F.substitute({"v" : NameNode(pos=None, name="a")})
+        v = F.root.stats[1].rhs.operand2.operand1
+        a = T.stats[1].rhs.operand2.operand1
+        self.assertEqual(v.pos, a.pos)
+
+    def test_temps(self):
+        TemplateTransform.temp_name_counter = 0
+        F = self.fragment(u"""
+            TMP
+            x = TMP
+        """)
+        T = F.substitute(temps=[u"TMP"])
+        s = T.body.stats
+        self.assertTrue(isinstance(s[0].expr, TempRefNode))
+        self.assertTrue(isinstance(s[1].rhs, TempRefNode))
+        self.assertTrue(s[0].expr.handle is s[1].rhs.handle)
+
+if __name__ == "__main__":
+    import unittest
+    unittest.main()

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestTreePath.py

@@ -0,0 +1,94 @@
+import unittest
+from Cython.Compiler.Visitor import PrintTree
+from Cython.TestUtils import TransformTest
+from Cython.Compiler.TreePath import find_first, find_all
+from Cython.Compiler import Nodes, ExprNodes
+
+class TestTreePath(TransformTest):
+    _tree = None
+
+    def _build_tree(self):
+        if self._tree is None:
+            self._tree = self.run_pipeline([], u"""
+            def decorator(fun):  # DefNode
+                return fun       # ReturnStatNode, NameNode
+            @decorator           # NameNode
+            def decorated():     # DefNode
+                pass
+            """)
+        return self._tree
+
+    def test_node_path(self):
+        t = self._build_tree()
+        self.assertEqual(2, len(find_all(t, "//DefNode")))
+        self.assertEqual(2, len(find_all(t, "//NameNode")))
+        self.assertEqual(1, len(find_all(t, "//ReturnStatNode")))
+        self.assertEqual(1, len(find_all(t, "//DefNode//ReturnStatNode")))
+
+    def test_node_path_star(self):
+        t = self._build_tree()
+        self.assertEqual(10, len(find_all(t, "//*")))
+        self.assertEqual(8, len(find_all(t, "//DefNode//*")))
+        self.assertEqual(0, len(find_all(t, "//NameNode//*")))
+
+    def test_node_path_attribute(self):
+        t = self._build_tree()
+        self.assertEqual(2, len(find_all(t, "//NameNode/@name")))
+        self.assertEqual(['fun', 'decorator'], find_all(t, "//NameNode/@name"))
+
+    def test_node_path_attribute_dotted(self):
+        t = self._build_tree()
+        self.assertEqual(1, len(find_all(t, "//ReturnStatNode/@value.name")))
+        self.assertEqual(['fun'], find_all(t, "//ReturnStatNode/@value.name"))
+
+    def test_node_path_child(self):
+        t = self._build_tree()
+        self.assertEqual(1, len(find_all(t, "//DefNode/ReturnStatNode/NameNode")))
+        self.assertEqual(1, len(find_all(t, "//ReturnStatNode/NameNode")))
+
+    def test_node_path_node_predicate(self):
+        t = self._build_tree()
+        self.assertEqual(0, len(find_all(t, "//DefNode[.//ForInStatNode]")))
+        self.assertEqual(2, len(find_all(t, "//DefNode[.//NameNode]")))
+        self.assertEqual(1, len(find_all(t, "//ReturnStatNode[./NameNode]")))
+        self.assertEqual(Nodes.ReturnStatNode,
+                         type(find_first(t, "//ReturnStatNode[./NameNode]")))
+
+    def test_node_path_node_predicate_step(self):
+        t = self._build_tree()
+        self.assertEqual(2, len(find_all(t, "//DefNode[.//NameNode]")))
+        self.assertEqual(8, len(find_all(t, "//DefNode[.//NameNode]//*")))
+        self.assertEqual(1, len(find_all(t, "//DefNode[.//NameNode]//ReturnStatNode")))
+        self.assertEqual(Nodes.ReturnStatNode,
+                         type(find_first(t, "//DefNode[.//NameNode]//ReturnStatNode")))
+
+    def test_node_path_attribute_exists(self):
+        t = self._build_tree()
+        self.assertEqual(2, len(find_all(t, "//NameNode[@name]")))
+        self.assertEqual(ExprNodes.NameNode,
+                         type(find_first(t, "//NameNode[@name]")))
+
+    def test_node_path_attribute_exists_not(self):
+        t = self._build_tree()
+        self.assertEqual(0, len(find_all(t, "//NameNode[not(@name)]")))
+        self.assertEqual(2, len(find_all(t, "//NameNode[not(@honking)]")))
+
+    def test_node_path_and(self):
+        t = self._build_tree()
+        self.assertEqual(1, len(find_all(t, "//DefNode[.//ReturnStatNode and .//NameNode]")))
+        self.assertEqual(0, len(find_all(t, "//NameNode[@honking and @name]")))
+        self.assertEqual(0, len(find_all(t, "//NameNode[@name and @honking]")))
+        self.assertEqual(2, len(find_all(t, "//DefNode[.//NameNode[@name] and @name]")))
+
+    def test_node_path_attribute_string_predicate(self):
+        t = self._build_tree()
+        self.assertEqual(1, len(find_all(t, "//NameNode[@name = 'decorator']")))
+
+    def test_node_path_recursive_predicate(self):
+        t = self._build_tree()
+        self.assertEqual(2, len(find_all(t, "//DefNode[.//NameNode[@name]]")))
+        self.assertEqual(1, len(find_all(t, "//DefNode[.//NameNode[@name = 'decorator']]")))
+        self.assertEqual(1, len(find_all(t, "//DefNode[.//ReturnStatNode[./NameNode[@name = 'fun']]/NameNode]")))
+
+if __name__ == '__main__':
+    unittest.main()

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestTypes.py

@@ -0,0 +1,19 @@
+from __future__ import absolute_import
+
+import unittest
+
+import Cython.Compiler.PyrexTypes as PT
+
+
+class TestMethodDispatcherTransform(unittest.TestCase):
+
+    def test_widest_numeric_type(self):
+        def assert_widest(type1, type2, widest):
+            self.assertEqual(widest, PT.widest_numeric_type(type1, type2))
+
+        assert_widest(PT.c_int_type, PT.c_long_type, PT.c_long_type)
+        assert_widest(PT.c_double_type, PT.c_long_type, PT.c_double_type)
+        assert_widest(PT.c_longdouble_type, PT.c_long_type, PT.c_longdouble_type)
+
+        cenum = PT.CEnumType("E", "cenum", typedef_flag=False)
+        assert_widest(PT.c_int_type, cenum, PT.c_int_type)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestUtilityLoad.py

@@ -0,0 +1,101 @@
+import unittest
+
+from Cython.Compiler import Code, UtilityCode
+
+
+def strip_2tup(tup):
+    return tup[0] and tup[0].strip(), tup[1] and tup[1].strip()
+
+class TestUtilityLoader(unittest.TestCase):
+    """
+    Test loading UtilityCodes
+    """
+
+    expected = "test {{loader}} prototype", "test {{loader}} impl"
+
+    required = "req {{loader}} proto", "req {{loader}} impl"
+
+    context = dict(loader='Loader')
+
+    name = "TestUtilityLoader"
+    filename = "TestUtilityLoader.c"
+    cls = Code.UtilityCode
+
+    def test_load_as_string(self):
+        got = strip_2tup(self.cls.load_as_string(self.name))
+        self.assertEqual(got, self.expected)
+
+        got = strip_2tup(self.cls.load_as_string(self.name, self.filename))
+        self.assertEqual(got, self.expected)
+
+    def test_load(self):
+        utility = self.cls.load(self.name)
+        got = strip_2tup((utility.proto, utility.impl))
+        self.assertEqual(got, self.expected)
+
+        required, = utility.requires
+        got = strip_2tup((required.proto, required.impl))
+        self.assertEqual(got, self.required)
+
+        utility = self.cls.load(self.name, from_file=self.filename)
+        got = strip_2tup((utility.proto, utility.impl))
+        self.assertEqual(got, self.expected)
+
+        utility = self.cls.load_cached(self.name, from_file=self.filename)
+        got = strip_2tup((utility.proto, utility.impl))
+        self.assertEqual(got, self.expected)
+
+
+class TestTempitaUtilityLoader(TestUtilityLoader):
+    """
+    Test loading UtilityCodes with Tempita substitution
+    """
+    expected_tempita = (TestUtilityLoader.expected[0].replace('{{loader}}', 'Loader'),
+                        TestUtilityLoader.expected[1].replace('{{loader}}', 'Loader'))
+
+    required_tempita = (TestUtilityLoader.required[0].replace('{{loader}}', 'Loader'),
+                        TestUtilityLoader.required[1].replace('{{loader}}', 'Loader'))
+
+    cls = Code.TempitaUtilityCode
+
+    def test_load_as_string(self):
+        got = strip_2tup(self.cls.load_as_string(self.name, context=self.context))
+        self.assertEqual(got, self.expected_tempita)
+
+    def test_load(self):
+        utility = self.cls.load(self.name, context=self.context)
+        got = strip_2tup((utility.proto, utility.impl))
+        self.assertEqual(got, self.expected_tempita)
+
+        required, = utility.requires
+        got = strip_2tup((required.proto, required.impl))
+        self.assertEqual(got, self.required_tempita)
+
+        utility = self.cls.load(self.name, from_file=self.filename, context=self.context)
+        got = strip_2tup((utility.proto, utility.impl))
+        self.assertEqual(got, self.expected_tempita)
+
+
+class TestCythonUtilityLoader(TestTempitaUtilityLoader):
+    """
+    Test loading CythonUtilityCodes
+    """
+
+    # Just change the attributes and run the same tests
+    expected = None, "test {{cy_loader}} impl"
+    expected_tempita = None, "test CyLoader impl"
+
+    required = None, "req {{cy_loader}} impl"
+    required_tempita = None, "req CyLoader impl"
+
+    context = dict(cy_loader='CyLoader')
+
+    name = "TestCyUtilityLoader"
+    filename = "TestCyUtilityLoader.pyx"
+    cls = UtilityCode.CythonUtilityCode
+
+    # Small hack to pass our tests above
+    cls.proto = None
+
+    test_load = TestUtilityLoader.test_load
+    test_load_tempita = TestTempitaUtilityLoader.test_load

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/TestVisitor.py

@@ -0,0 +1,61 @@
+from Cython.Compiler.ModuleNode import ModuleNode
+from Cython.Compiler.Symtab import ModuleScope
+from Cython.TestUtils import TransformTest
+from Cython.Compiler.Visitor import MethodDispatcherTransform
+from Cython.Compiler.ParseTreeTransforms import (
+    NormalizeTree, AnalyseDeclarationsTransform,
+    AnalyseExpressionsTransform, InterpretCompilerDirectives)
+
+
+class TestMethodDispatcherTransform(TransformTest):
+    _tree = None
+
+    def _build_tree(self):
+        if self._tree is None:
+            context = None
+
+            def fake_module(node):
+                scope = ModuleScope('test', None, None)
+                return ModuleNode(node.pos, doc=None, body=node,
+                                  scope=scope, full_module_name='test',
+                                  directive_comments={})
+            pipeline = [
+                fake_module,
+                NormalizeTree(context),
+                InterpretCompilerDirectives(context, {}),
+                AnalyseDeclarationsTransform(context),
+                AnalyseExpressionsTransform(context),
+            ]
+            self._tree = self.run_pipeline(pipeline, u"""
+                cdef bytes s = b'asdfg'
+                cdef dict d = {1:2}
+                x = s * 3
+                d.get('test')
+            """)
+        return self._tree
+
+    def test_builtin_method(self):
+        calls = [0]
+        class Test(MethodDispatcherTransform):
+            def _handle_simple_method_dict_get(self, node, func, args, unbound):
+                calls[0] += 1
+                return node
+
+        tree = self._build_tree()
+        Test(None)(tree)
+        self.assertEqual(1, calls[0])
+
+    def test_binop_method(self):
+        calls = {'bytes': 0, 'object': 0}
+        class Test(MethodDispatcherTransform):
+            def _handle_simple_method_bytes___mul__(self, node, func, args, unbound):
+                calls['bytes'] += 1
+                return node
+            def _handle_simple_method_object___mul__(self, node, func, args, unbound):
+                calls['object'] += 1
+                return node
+
+        tree = self._build_tree()
+        Test(None)(tree)
+        self.assertEqual(1, calls['bytes'])
+        self.assertEqual(0, calls['object'])

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Tests/__init__.py

@@ -0,0 +1 @@
+# empty file

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/TreeFragment.py

@@ -0,0 +1,275 @@
+#
+# TreeFragments - parsing of strings to trees
+#
+
+"""
+Support for parsing strings into code trees.
+"""
+
+from __future__ import absolute_import
+
+import re
+from io import StringIO
+
+from .Scanning import PyrexScanner, StringSourceDescriptor
+from .Symtab import ModuleScope
+from . import PyrexTypes
+from .Visitor import VisitorTransform
+from .Nodes import Node, StatListNode
+from .ExprNodes import NameNode
+from .StringEncoding import _unicode
+from . import Parsing
+from . import Main
+from . import UtilNodes
+
+
+class StringParseContext(Main.Context):
+    def __init__(self, name, include_directories=None, compiler_directives=None, cpp=False):
+        if include_directories is None:
+            include_directories = []
+        if compiler_directives is None:
+            compiler_directives = {}
+        # TODO: see if "language_level=3" also works for our internal code here.
+        Main.Context.__init__(self, include_directories, compiler_directives, cpp=cpp, language_level=2)
+        self.module_name = name
+
+    def find_module(self, module_name, relative_to=None, pos=None, need_pxd=1, absolute_fallback=True):
+        if module_name not in (self.module_name, 'cython'):
+            raise AssertionError("Not yet supporting any cimports/includes from string code snippets")
+        return ModuleScope(module_name, parent_module=None, context=self)
+
+
+def parse_from_strings(name, code, pxds=None, level=None, initial_pos=None,
+                       context=None, allow_struct_enum_decorator=False):
+    """
+    Utility method to parse a (unicode) string of code. This is mostly
+    used for internal Cython compiler purposes (creating code snippets
+    that transforms should emit, as well as unit testing).
+
+    code - a unicode string containing Cython (module-level) code
+    name - a descriptive name for the code source (to use in error messages etc.)
+
+    RETURNS
+
+    The tree, i.e. a ModuleNode. The ModuleNode's scope attribute is
+    set to the scope used when parsing.
+    """
+    if context is None:
+        context = StringParseContext(name)
+    # Since source files carry an encoding, it makes sense in this context
+    # to use a unicode string so that code fragments don't have to bother
+    # with encoding. This means that test code passed in should not have an
+    # encoding header.
+    assert isinstance(code, _unicode), "unicode code snippets only please"
+    encoding = "UTF-8"
+
+    module_name = name
+    if initial_pos is None:
+        initial_pos = (name, 1, 0)
+    code_source = StringSourceDescriptor(name, code)
+
+    scope = context.find_module(module_name, pos=initial_pos, need_pxd=False)
+
+    buf = StringIO(code)
+
+    scanner = PyrexScanner(buf, code_source, source_encoding = encoding,
+                     scope = scope, context = context, initial_pos = initial_pos)
+    ctx = Parsing.Ctx(allow_struct_enum_decorator=allow_struct_enum_decorator)
+
+    if level is None:
+        tree = Parsing.p_module(scanner, 0, module_name, ctx=ctx)
+        tree.scope = scope
+        tree.is_pxd = False
+    else:
+        tree = Parsing.p_code(scanner, level=level, ctx=ctx)
+
+    tree.scope = scope
+    return tree
+
+
+class TreeCopier(VisitorTransform):
+    def visit_Node(self, node):
+        if node is None:
+            return node
+        else:
+            c = node.clone_node()
+            self.visitchildren(c)
+            return c
+
+
+class ApplyPositionAndCopy(TreeCopier):
+    def __init__(self, pos):
+        super(ApplyPositionAndCopy, self).__init__()
+        self.pos = pos
+
+    def visit_Node(self, node):
+        copy = super(ApplyPositionAndCopy, self).visit_Node(node)
+        copy.pos = self.pos
+        return copy
+
+
+class TemplateTransform(VisitorTransform):
+    """
+    Makes a copy of a template tree while doing substitutions.
+
+    A dictionary "substitutions" should be passed in when calling
+    the transform; mapping names to replacement nodes. Then replacement
+    happens like this:
+     - If an ExprStatNode contains a single NameNode, whose name is
+       a key in the substitutions dictionary, the ExprStatNode is
+       replaced with a copy of the tree given in the dictionary.
+       It is the responsibility of the caller that the replacement
+       node is a valid statement.
+     - If a single NameNode is otherwise encountered, it is replaced
+       if its name is listed in the substitutions dictionary in the
+       same way. It is the responsibility of the caller to make sure
+       that the replacement nodes is a valid expression.
+
+    Also a list "temps" should be passed. Any names listed will
+    be transformed into anonymous, temporary names.
+
+    Currently supported for tempnames is:
+    NameNode
+    (various function and class definition nodes etc. should be added to this)
+
+    Each replacement node gets the position of the substituted node
+    recursively applied to every member node.
+    """
+
+    temp_name_counter = 0
+
+    def __call__(self, node, substitutions, temps, pos):
+        self.substitutions = substitutions
+        self.pos = pos
+        tempmap = {}
+        temphandles = []
+        for temp in temps:
+            TemplateTransform.temp_name_counter += 1
+            handle = UtilNodes.TempHandle(PyrexTypes.py_object_type)
+            tempmap[temp] = handle
+            temphandles.append(handle)
+        self.tempmap = tempmap
+        result = super(TemplateTransform, self).__call__(node)
+        if temps:
+            result = UtilNodes.TempsBlockNode(self.get_pos(node),
+                                              temps=temphandles,
+                                              body=result)
+        return result
+
+    def get_pos(self, node):
+        if self.pos:
+            return self.pos
+        else:
+            return node.pos
+
+    def visit_Node(self, node):
+        if node is None:
+            return None
+        else:
+            c = node.clone_node()
+            if self.pos is not None:
+                c.pos = self.pos
+            self.visitchildren(c)
+            return c
+
+    def try_substitution(self, node, key):
+        sub = self.substitutions.get(key)
+        if sub is not None:
+            pos = self.pos
+            if pos is None: pos = node.pos
+            return ApplyPositionAndCopy(pos)(sub)
+        else:
+            return self.visit_Node(node) # make copy as usual
+
+    def visit_NameNode(self, node):
+        temphandle = self.tempmap.get(node.name)
+        if temphandle:
+            # Replace name with temporary
+            return temphandle.ref(self.get_pos(node))
+        else:
+            return self.try_substitution(node, node.name)
+
+    def visit_ExprStatNode(self, node):
+        # If an expression-as-statement consists of only a replaceable
+        # NameNode, we replace the entire statement, not only the NameNode
+        if isinstance(node.expr, NameNode):
+            return self.try_substitution(node, node.expr.name)
+        else:
+            return self.visit_Node(node)
+
+
+def copy_code_tree(node):
+    return TreeCopier()(node)
+
+
+_match_indent = re.compile(u"^ *").match
+
+
+def strip_common_indent(lines):
+    """Strips empty lines and common indentation from the list of strings given in lines"""
+    # TODO: Facilitate textwrap.indent instead
+    lines = [x for x in lines if x.strip() != u""]
+    if lines:
+        minindent = min([len(_match_indent(x).group(0)) for x in lines])
+        lines = [x[minindent:] for x in lines]
+    return lines
+
+
+class TreeFragment(object):
+    def __init__(self, code, name=None, pxds=None, temps=None, pipeline=None, level=None, initial_pos=None):
+        if pxds is None:
+            pxds = {}
+        if temps is None:
+            temps = []
+        if pipeline is None:
+            pipeline = []
+        if not name:
+            name = "(tree fragment)"
+
+        if isinstance(code, _unicode):
+            def fmt(x): return u"\n".join(strip_common_indent(x.split(u"\n")))
+
+            fmt_code = fmt(code)
+            fmt_pxds = {}
+            for key, value in pxds.items():
+                fmt_pxds[key] = fmt(value)
+            mod = t = parse_from_strings(name, fmt_code, fmt_pxds, level=level, initial_pos=initial_pos)
+            if level is None:
+                t = t.body # Make sure a StatListNode is at the top
+            if not isinstance(t, StatListNode):
+                t = StatListNode(pos=mod.pos, stats=[t])
+            for transform in pipeline:
+                if transform is None:
+                    continue
+                t = transform(t)
+            self.root = t
+        elif isinstance(code, Node):
+            if pxds:
+                raise NotImplementedError()
+            self.root = code
+        else:
+            raise ValueError("Unrecognized code format (accepts unicode and Node)")
+        self.temps = temps
+
+    def copy(self):
+        return copy_code_tree(self.root)
+
+    def substitute(self, nodes=None, temps=None, pos = None):
+        if nodes is None:
+            nodes = {}
+        if temps is None:
+            temps = []
+        return TemplateTransform()(self.root,
+                                   substitutions = nodes,
+                                   temps = self.temps + temps, pos = pos)
+
+
+class SetPosTransform(VisitorTransform):
+    def __init__(self, pos):
+        super(SetPosTransform, self).__init__()
+        self.pos = pos
+
+    def visit_Node(self, node):
+        node.pos = self.pos
+        self.visitchildren(node)
+        return node

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/TreePath.py

@@ -0,0 +1,296 @@
+"""
+A simple XPath-like language for tree traversal.
+
+This works by creating a filter chain of generator functions.  Each
+function selects a part of the expression, e.g. a child node, a
+specific descendant or a node that holds an attribute.
+"""
+
+from __future__ import absolute_import
+
+import re
+import operator
+import sys
+
+if sys.version_info[0] >= 3:
+    _unicode = str
+else:
+    _unicode = unicode
+
+path_tokenizer = re.compile(
+    r"("
+    r"'[^']*'|\"[^\"]*\"|"
+    r"//?|"
+    r"\(\)|"
+    r"==?|"
+    r"[/.*\[\]()@])|"
+    r"([^/\[\]()@=\s]+)|"
+    r"\s+"
+    ).findall
+
+def iterchildren(node, attr_name):
+    # returns an iterable of all child nodes of that name
+    child = getattr(node, attr_name)
+    if child is not None:
+        if type(child) is list:
+            return child
+        else:
+            return [child]
+    else:
+        return ()
+
+def _get_first_or_none(it):
+    try:
+        try:
+            _next = it.next
+        except AttributeError:
+            return next(it)
+        else:
+            return _next()
+    except StopIteration:
+        return None
+
+def type_name(node):
+    return node.__class__.__name__.split('.')[-1]
+
+def parse_func(next, token):
+    name = token[1]
+    token = next()
+    if token[0] != '(':
+        raise ValueError("Expected '(' after function name '%s'" % name)
+    predicate = handle_predicate(next, token)
+    return name, predicate
+
+def handle_func_not(next, token):
+    """
+    not(...)
+    """
+    name, predicate = parse_func(next, token)
+
+    def select(result):
+        for node in result:
+            if _get_first_or_none(predicate([node])) is None:
+                yield node
+    return select
+
+def handle_name(next, token):
+    """
+    /NodeName/
+    or
+    func(...)
+    """
+    name = token[1]
+    if name in functions:
+        return functions[name](next, token)
+    def select(result):
+        for node in result:
+            for attr_name in node.child_attrs:
+                for child in iterchildren(node, attr_name):
+                    if type_name(child) == name:
+                        yield child
+    return select
+
+def handle_star(next, token):
+    """
+    /*/
+    """
+    def select(result):
+        for node in result:
+            for name in node.child_attrs:
+                for child in iterchildren(node, name):
+                    yield child
+    return select
+
+def handle_dot(next, token):
+    """
+    /./
+    """
+    def select(result):
+        return result
+    return select
+
+def handle_descendants(next, token):
+    """
+    //...
+    """
+    token = next()
+    if token[0] == "*":
+        def iter_recursive(node):
+            for name in node.child_attrs:
+                for child in iterchildren(node, name):
+                    yield child
+                    for c in iter_recursive(child):
+                        yield c
+    elif not token[0]:
+        node_name = token[1]
+        def iter_recursive(node):
+            for name in node.child_attrs:
+                for child in iterchildren(node, name):
+                    if type_name(child) == node_name:
+                        yield child
+                    for c in iter_recursive(child):
+                        yield c
+    else:
+        raise ValueError("Expected node name after '//'")
+
+    def select(result):
+        for node in result:
+            for child in iter_recursive(node):
+                yield child
+
+    return select
+
+
+def handle_attribute(next, token):
+    token = next()
+    if token[0]:
+        raise ValueError("Expected attribute name")
+    name = token[1]
+    value = None
+    try:
+        token = next()
+    except StopIteration:
+        pass
+    else:
+        if token[0] == '=':
+            value = parse_path_value(next)
+    readattr = operator.attrgetter(name)
+    if value is None:
+        def select(result):
+            for node in result:
+                try:
+                    attr_value = readattr(node)
+                except AttributeError:
+                    continue
+                if attr_value is not None:
+                    yield attr_value
+    else:
+        def select(result):
+            for node in result:
+                try:
+                    attr_value = readattr(node)
+                except AttributeError:
+                    continue
+                if attr_value == value:
+                    yield attr_value
+                elif (isinstance(attr_value, bytes) and isinstance(value, _unicode) and
+                        attr_value == value.encode()):
+                    # allow a bytes-to-string comparison too
+                    yield attr_value
+
+    return select
+
+
+def parse_path_value(next):
+    token = next()
+    value = token[0]
+    if value:
+        if value[:1] == "'" or value[:1] == '"':
+            return value[1:-1]
+        try:
+            return int(value)
+        except ValueError:
+            pass
+    elif token[1].isdigit():
+        return int(token[1])
+    else:
+        name = token[1].lower()
+        if name == 'true':
+            return True
+        elif name == 'false':
+            return False
+    raise ValueError("Invalid attribute predicate: '%s'" % value)
+
+def handle_predicate(next, token):
+    token = next()
+    selector = []
+    while token[0] != ']':
+        selector.append( operations[token[0]](next, token) )
+        try:
+            token = next()
+        except StopIteration:
+            break
+        else:
+            if token[0] == "/":
+                token = next()
+
+        if not token[0] and token[1] == 'and':
+            return logical_and(selector, handle_predicate(next, token))
+
+    def select(result):
+        for node in result:
+            subresult = iter((node,))
+            for select in selector:
+                subresult = select(subresult)
+            predicate_result = _get_first_or_none(subresult)
+            if predicate_result is not None:
+                yield node
+    return select
+
+def logical_and(lhs_selects, rhs_select):
+    def select(result):
+        for node in result:
+            subresult = iter((node,))
+            for select in lhs_selects:
+                subresult = select(subresult)
+            predicate_result = _get_first_or_none(subresult)
+            subresult = iter((node,))
+            if predicate_result is not None:
+                for result_node in rhs_select(subresult):
+                    yield node
+    return select
+
+
+operations = {
+    "@":  handle_attribute,
+    "":   handle_name,
+    "*":  handle_star,
+    ".":  handle_dot,
+    "//": handle_descendants,
+    "[":  handle_predicate,
+    }
+
+functions = {
+    'not' : handle_func_not
+    }
+
+def _build_path_iterator(path):
+    # parse pattern
+    stream = iter([ (special,text)
+                    for (special,text) in path_tokenizer(path)
+                    if special or text ])
+    try:
+        _next = stream.next
+    except AttributeError:
+        # Python 3
+        def _next():
+            return next(stream)
+    token = _next()
+    selector = []
+    while 1:
+        try:
+            selector.append(operations[token[0]](_next, token))
+        except StopIteration:
+            raise ValueError("invalid path")
+        try:
+            token = _next()
+            if token[0] == "/":
+                token = _next()
+        except StopIteration:
+            break
+    return selector
+
+# main module API
+
+def iterfind(node, path):
+    selector_chain = _build_path_iterator(path)
+    result = iter((node,))
+    for select in selector_chain:
+        result = select(result)
+    return result
+
+def find_first(node, path):
+    return _get_first_or_none(iterfind(node, path))
+
+def find_all(node, path):
+    return list(iterfind(node, path))

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/TypeInference.py

@@ -0,0 +1,591 @@
+from __future__ import absolute_import
+
+from .Errors import error, message
+from . import ExprNodes
+from . import Nodes
+from . import Builtin
+from . import PyrexTypes
+from .. import Utils
+from .PyrexTypes import py_object_type, unspecified_type
+from .Visitor import CythonTransform, EnvTransform
+
+try:
+    reduce
+except NameError:
+    from functools import reduce
+
+
+class TypedExprNode(ExprNodes.ExprNode):
+    # Used for declaring assignments of a specified type without a known entry.
+    subexprs = []
+
+    def __init__(self, type, pos=None):
+        super(TypedExprNode, self).__init__(pos, type=type)
+
+object_expr = TypedExprNode(py_object_type)
+
+
+class MarkParallelAssignments(EnvTransform):
+    # Collects assignments inside parallel blocks prange, with parallel.
+    # Perhaps it's better to move it to ControlFlowAnalysis.
+
+    # tells us whether we're in a normal loop
+    in_loop = False
+
+    parallel_errors = False
+
+    def __init__(self, context):
+        # Track the parallel block scopes (with parallel, for i in prange())
+        self.parallel_block_stack = []
+        super(MarkParallelAssignments, self).__init__(context)
+
+    def mark_assignment(self, lhs, rhs, inplace_op=None):
+        if isinstance(lhs, (ExprNodes.NameNode, Nodes.PyArgDeclNode)):
+            if lhs.entry is None:
+                # TODO: This shouldn't happen...
+                return
+
+            if self.parallel_block_stack:
+                parallel_node = self.parallel_block_stack[-1]
+                previous_assignment = parallel_node.assignments.get(lhs.entry)
+
+                # If there was a previous assignment to the variable, keep the
+                # previous assignment position
+                if previous_assignment:
+                    pos, previous_inplace_op = previous_assignment
+
+                    if (inplace_op and previous_inplace_op and
+                            inplace_op != previous_inplace_op):
+                        # x += y; x *= y
+                        t = (inplace_op, previous_inplace_op)
+                        error(lhs.pos,
+                              "Reduction operator '%s' is inconsistent "
+                              "with previous reduction operator '%s'" % t)
+                else:
+                    pos = lhs.pos
+
+                parallel_node.assignments[lhs.entry] = (pos, inplace_op)
+                parallel_node.assigned_nodes.append(lhs)
+
+        elif isinstance(lhs, ExprNodes.SequenceNode):
+            for i, arg in enumerate(lhs.args):
+                if not rhs or arg.is_starred:
+                    item_node = None
+                else:
+                    item_node = rhs.inferable_item_node(i)
+                self.mark_assignment(arg, item_node)
+        else:
+            # Could use this info to infer cdef class attributes...
+            pass
+
+    def visit_WithTargetAssignmentStatNode(self, node):
+        self.mark_assignment(node.lhs, node.with_node.enter_call)
+        self.visitchildren(node)
+        return node
+
+    def visit_SingleAssignmentNode(self, node):
+        self.mark_assignment(node.lhs, node.rhs)
+        self.visitchildren(node)
+        return node
+
+    def visit_CascadedAssignmentNode(self, node):
+        for lhs in node.lhs_list:
+            self.mark_assignment(lhs, node.rhs)
+        self.visitchildren(node)
+        return node
+
+    def visit_InPlaceAssignmentNode(self, node):
+        self.mark_assignment(node.lhs, node.create_binop_node(), node.operator)
+        self.visitchildren(node)
+        return node
+
+    def visit_ForInStatNode(self, node):
+        # TODO: Remove redundancy with range optimization...
+        is_special = False
+        sequence = node.iterator.sequence
+        target = node.target
+        if isinstance(sequence, ExprNodes.SimpleCallNode):
+            function = sequence.function
+            if sequence.self is None and function.is_name:
+                entry = self.current_env().lookup(function.name)
+                if not entry or entry.is_builtin:
+                    if function.name == 'reversed' and len(sequence.args) == 1:
+                        sequence = sequence.args[0]
+                    elif function.name == 'enumerate' and len(sequence.args) == 1:
+                        if target.is_sequence_constructor and len(target.args) == 2:
+                            iterator = sequence.args[0]
+                            if iterator.is_name:
+                                iterator_type = iterator.infer_type(self.current_env())
+                                if iterator_type.is_builtin_type:
+                                    # assume that builtin types have a length within Py_ssize_t
+                                    self.mark_assignment(
+                                        target.args[0],
+                                        ExprNodes.IntNode(target.pos, value='PY_SSIZE_T_MAX',
+                                                          type=PyrexTypes.c_py_ssize_t_type))
+                                    target = target.args[1]
+                                    sequence = sequence.args[0]
+        if isinstance(sequence, ExprNodes.SimpleCallNode):
+            function = sequence.function
+            if sequence.self is None and function.is_name:
+                entry = self.current_env().lookup(function.name)
+                if not entry or entry.is_builtin:
+                    if function.name in ('range', 'xrange'):
+                        is_special = True
+                        for arg in sequence.args[:2]:
+                            self.mark_assignment(target, arg)
+                        if len(sequence.args) > 2:
+                            self.mark_assignment(
+                                target,
+                                ExprNodes.binop_node(node.pos,
+                                                     '+',
+                                                     sequence.args[0],
+                                                     sequence.args[2]))
+
+        if not is_special:
+            # A for-loop basically translates to subsequent calls to
+            # __getitem__(), so using an IndexNode here allows us to
+            # naturally infer the base type of pointers, C arrays,
+            # Python strings, etc., while correctly falling back to an
+            # object type when the base type cannot be handled.
+            self.mark_assignment(target, ExprNodes.IndexNode(
+                node.pos,
+                base=sequence,
+                index=ExprNodes.IntNode(target.pos, value='PY_SSIZE_T_MAX',
+                                        type=PyrexTypes.c_py_ssize_t_type)))
+
+        self.visitchildren(node)
+        return node
+
+    def visit_ForFromStatNode(self, node):
+        self.mark_assignment(node.target, node.bound1)
+        if node.step is not None:
+            self.mark_assignment(node.target,
+                    ExprNodes.binop_node(node.pos,
+                                         '+',
+                                         node.bound1,
+                                         node.step))
+        self.visitchildren(node)
+        return node
+
+    def visit_WhileStatNode(self, node):
+        self.visitchildren(node)
+        return node
+
+    def visit_ExceptClauseNode(self, node):
+        if node.target is not None:
+            self.mark_assignment(node.target, object_expr)
+        self.visitchildren(node)
+        return node
+
+    def visit_FromCImportStatNode(self, node):
+        pass # Can't be assigned to...
+
+    def visit_FromImportStatNode(self, node):
+        for name, target in node.items:
+            if name != "*":
+                self.mark_assignment(target, object_expr)
+        self.visitchildren(node)
+        return node
+
+    def visit_DefNode(self, node):
+        # use fake expressions with the right result type
+        if node.star_arg:
+            self.mark_assignment(
+                node.star_arg, TypedExprNode(Builtin.tuple_type, node.pos))
+        if node.starstar_arg:
+            self.mark_assignment(
+                node.starstar_arg, TypedExprNode(Builtin.dict_type, node.pos))
+        EnvTransform.visit_FuncDefNode(self, node)
+        return node
+
+    def visit_DelStatNode(self, node):
+        for arg in node.args:
+            self.mark_assignment(arg, arg)
+        self.visitchildren(node)
+        return node
+
+    def visit_ParallelStatNode(self, node):
+        if self.parallel_block_stack:
+            node.parent = self.parallel_block_stack[-1]
+        else:
+            node.parent = None
+
+        nested = False
+        if node.is_prange:
+            if not node.parent:
+                node.is_parallel = True
+            else:
+                node.is_parallel = (node.parent.is_prange or not
+                                    node.parent.is_parallel)
+                nested = node.parent.is_prange
+        else:
+            node.is_parallel = True
+            # Note: nested with parallel() blocks are handled by
+            # ParallelRangeTransform!
+            # nested = node.parent
+            nested = node.parent and node.parent.is_prange
+
+        self.parallel_block_stack.append(node)
+
+        nested = nested or len(self.parallel_block_stack) > 2
+        if not self.parallel_errors and nested and not node.is_prange:
+            error(node.pos, "Only prange() may be nested")
+            self.parallel_errors = True
+
+        if node.is_prange:
+            child_attrs = node.child_attrs
+            node.child_attrs = ['body', 'target', 'args']
+            self.visitchildren(node)
+            node.child_attrs = child_attrs
+
+            self.parallel_block_stack.pop()
+            if node.else_clause:
+                node.else_clause = self.visit(node.else_clause)
+        else:
+            self.visitchildren(node)
+            self.parallel_block_stack.pop()
+
+        self.parallel_errors = False
+        return node
+
+    def visit_YieldExprNode(self, node):
+        if self.parallel_block_stack:
+            error(node.pos, "'%s' not allowed in parallel sections" % node.expr_keyword)
+        return node
+
+    def visit_ReturnStatNode(self, node):
+        node.in_parallel = bool(self.parallel_block_stack)
+        return node
+
+
+class MarkOverflowingArithmetic(CythonTransform):
+
+    # It may be possible to integrate this with the above for
+    # performance improvements (though likely not worth it).
+
+    might_overflow = False
+
+    def __call__(self, root):
+        self.env_stack = []
+        self.env = root.scope
+        return super(MarkOverflowingArithmetic, self).__call__(root)
+
+    def visit_safe_node(self, node):
+        self.might_overflow, saved = False, self.might_overflow
+        self.visitchildren(node)
+        self.might_overflow = saved
+        return node
+
+    def visit_neutral_node(self, node):
+        self.visitchildren(node)
+        return node
+
+    def visit_dangerous_node(self, node):
+        self.might_overflow, saved = True, self.might_overflow
+        self.visitchildren(node)
+        self.might_overflow = saved
+        return node
+
+    def visit_FuncDefNode(self, node):
+        self.env_stack.append(self.env)
+        self.env = node.local_scope
+        self.visit_safe_node(node)
+        self.env = self.env_stack.pop()
+        return node
+
+    def visit_NameNode(self, node):
+        if self.might_overflow:
+            entry = node.entry or self.env.lookup(node.name)
+            if entry:
+                entry.might_overflow = True
+        return node
+
+    def visit_BinopNode(self, node):
+        if node.operator in '&|^':
+            return self.visit_neutral_node(node)
+        else:
+            return self.visit_dangerous_node(node)
+
+    def visit_SimpleCallNode(self, node):
+        if node.function.is_name and node.function.name == 'abs':
+          # Overflows for minimum value of fixed size ints.
+          return self.visit_dangerous_node(node)
+        else:
+          return self.visit_neutral_node(node)
+
+    visit_UnopNode = visit_neutral_node
+
+    visit_UnaryMinusNode = visit_dangerous_node
+
+    visit_InPlaceAssignmentNode = visit_dangerous_node
+
+    visit_Node = visit_safe_node
+
+    def visit_assignment(self, lhs, rhs):
+        if (isinstance(rhs, ExprNodes.IntNode)
+                and isinstance(lhs, ExprNodes.NameNode)
+                and Utils.long_literal(rhs.value)):
+            entry = lhs.entry or self.env.lookup(lhs.name)
+            if entry:
+                entry.might_overflow = True
+
+    def visit_SingleAssignmentNode(self, node):
+        self.visit_assignment(node.lhs, node.rhs)
+        self.visitchildren(node)
+        return node
+
+    def visit_CascadedAssignmentNode(self, node):
+        for lhs in node.lhs_list:
+            self.visit_assignment(lhs, node.rhs)
+        self.visitchildren(node)
+        return node
+
+class PyObjectTypeInferer(object):
+    """
+    If it's not declared, it's a PyObject.
+    """
+    def infer_types(self, scope):
+        """
+        Given a dict of entries, map all unspecified types to a specified type.
+        """
+        for name, entry in scope.entries.items():
+            if entry.type is unspecified_type:
+                entry.type = py_object_type
+
+class SimpleAssignmentTypeInferer(object):
+    """
+    Very basic type inference.
+
+    Note: in order to support cross-closure type inference, this must be
+    applies to nested scopes in top-down order.
+    """
+    def set_entry_type(self, entry, entry_type):
+        entry.type = entry_type
+        for e in entry.all_entries():
+            e.type = entry_type
+
+    def infer_types(self, scope):
+        enabled = scope.directives['infer_types']
+        verbose = scope.directives['infer_types.verbose']
+
+        if enabled == True:
+            spanning_type = aggressive_spanning_type
+        elif enabled is None: # safe mode
+            spanning_type = safe_spanning_type
+        else:
+            for entry in scope.entries.values():
+                if entry.type is unspecified_type:
+                    self.set_entry_type(entry, py_object_type)
+            return
+
+        # Set of assignments
+        assignments = set()
+        assmts_resolved = set()
+        dependencies = {}
+        assmt_to_names = {}
+
+        for name, entry in scope.entries.items():
+            for assmt in entry.cf_assignments:
+                names = assmt.type_dependencies()
+                assmt_to_names[assmt] = names
+                assmts = set()
+                for node in names:
+                    assmts.update(node.cf_state)
+                dependencies[assmt] = assmts
+            if entry.type is unspecified_type:
+                assignments.update(entry.cf_assignments)
+            else:
+                assmts_resolved.update(entry.cf_assignments)
+
+        def infer_name_node_type(node):
+            types = [assmt.inferred_type for assmt in node.cf_state]
+            if not types:
+                node_type = py_object_type
+            else:
+                entry = node.entry
+                node_type = spanning_type(
+                    types, entry.might_overflow, entry.pos, scope)
+            node.inferred_type = node_type
+
+        def infer_name_node_type_partial(node):
+            types = [assmt.inferred_type for assmt in node.cf_state
+                     if assmt.inferred_type is not None]
+            if not types:
+                return
+            entry = node.entry
+            return spanning_type(types, entry.might_overflow, entry.pos, scope)
+
+        def inferred_types(entry):
+            has_none = False
+            has_pyobjects = False
+            types = []
+            for assmt in entry.cf_assignments:
+                if assmt.rhs.is_none:
+                    has_none = True
+                else:
+                    rhs_type = assmt.inferred_type
+                    if rhs_type and rhs_type.is_pyobject:
+                        has_pyobjects = True
+                    types.append(rhs_type)
+            # Ignore None assignments as long as there are concrete Python type assignments.
+            # but include them if None is the only assigned Python object.
+            if has_none and not has_pyobjects:
+                types.append(py_object_type)
+            return types
+
+        def resolve_assignments(assignments):
+            resolved = set()
+            for assmt in assignments:
+                deps = dependencies[assmt]
+                # All assignments are resolved
+                if assmts_resolved.issuperset(deps):
+                    for node in assmt_to_names[assmt]:
+                        infer_name_node_type(node)
+                    # Resolve assmt
+                    inferred_type = assmt.infer_type()
+                    assmts_resolved.add(assmt)
+                    resolved.add(assmt)
+            assignments.difference_update(resolved)
+            return resolved
+
+        def partial_infer(assmt):
+            partial_types = []
+            for node in assmt_to_names[assmt]:
+                partial_type = infer_name_node_type_partial(node)
+                if partial_type is None:
+                    return False
+                partial_types.append((node, partial_type))
+            for node, partial_type in partial_types:
+                node.inferred_type = partial_type
+            assmt.infer_type()
+            return True
+
+        partial_assmts = set()
+        def resolve_partial(assignments):
+            # try to handle circular references
+            partials = set()
+            for assmt in assignments:
+                if assmt in partial_assmts:
+                    continue
+                if partial_infer(assmt):
+                    partials.add(assmt)
+                    assmts_resolved.add(assmt)
+            partial_assmts.update(partials)
+            return partials
+
+        # Infer assignments
+        while True:
+            if not resolve_assignments(assignments):
+                if not resolve_partial(assignments):
+                    break
+        inferred = set()
+        # First pass
+        for entry in scope.entries.values():
+            if entry.type is not unspecified_type:
+                continue
+            entry_type = py_object_type
+            if assmts_resolved.issuperset(entry.cf_assignments):
+                types = inferred_types(entry)
+                if types and all(types):
+                    entry_type = spanning_type(
+                        types, entry.might_overflow, entry.pos, scope)
+                    inferred.add(entry)
+            self.set_entry_type(entry, entry_type)
+
+        def reinfer():
+            dirty = False
+            for entry in inferred:
+                for assmt in entry.cf_assignments:
+                    assmt.infer_type()
+                types = inferred_types(entry)
+                new_type = spanning_type(types, entry.might_overflow, entry.pos, scope)
+                if new_type != entry.type:
+                    self.set_entry_type(entry, new_type)
+                    dirty = True
+            return dirty
+
+        # types propagation
+        while reinfer():
+            pass
+
+        if verbose:
+            for entry in inferred:
+                message(entry.pos, "inferred '%s' to be of type '%s'" % (
+                    entry.name, entry.type))
+
+
+def find_spanning_type(type1, type2):
+    if type1 is type2:
+        result_type = type1
+    elif type1 is PyrexTypes.c_bint_type or type2 is PyrexTypes.c_bint_type:
+        # type inference can break the coercion back to a Python bool
+        # if it returns an arbitrary int type here
+        return py_object_type
+    else:
+        result_type = PyrexTypes.spanning_type(type1, type2)
+    if result_type in (PyrexTypes.c_double_type, PyrexTypes.c_float_type,
+                       Builtin.float_type):
+        # Python's float type is just a C double, so it's safe to
+        # use the C type instead
+        return PyrexTypes.c_double_type
+    return result_type
+
+def simply_type(result_type, pos):
+    if result_type.is_reference:
+        result_type = result_type.ref_base_type
+    if result_type.is_const:
+        result_type = result_type.const_base_type
+    if result_type.is_cpp_class:
+        result_type.check_nullary_constructor(pos)
+    if result_type.is_array:
+        result_type = PyrexTypes.c_ptr_type(result_type.base_type)
+    return result_type
+
+def aggressive_spanning_type(types, might_overflow, pos, scope):
+    return simply_type(reduce(find_spanning_type, types), pos)
+
+def safe_spanning_type(types, might_overflow, pos, scope):
+    result_type = simply_type(reduce(find_spanning_type, types), pos)
+    if result_type.is_pyobject:
+        # In theory, any specific Python type is always safe to
+        # infer. However, inferring str can cause some existing code
+        # to break, since we are also now much more strict about
+        # coercion from str to char *. See trac #553.
+        if result_type.name == 'str':
+            return py_object_type
+        else:
+            return result_type
+    elif result_type is PyrexTypes.c_double_type:
+        # Python's float type is just a C double, so it's safe to use
+        # the C type instead
+        return result_type
+    elif result_type is PyrexTypes.c_bint_type:
+        # find_spanning_type() only returns 'bint' for clean boolean
+        # operations without other int types, so this is safe, too
+        return result_type
+    elif result_type.is_pythran_expr:
+        return result_type
+    elif result_type.is_ptr:
+        # Any pointer except (signed|unsigned|) char* can't implicitly
+        # become a PyObject, and inferring char* is now accepted, too.
+        return result_type
+    elif result_type.is_cpp_class:
+        # These can't implicitly become Python objects either.
+        return result_type
+    elif result_type.is_struct:
+        # Though we have struct -> object for some structs, this is uncommonly
+        # used, won't arise in pure Python, and there shouldn't be side
+        # effects, so I'm declaring this safe.
+        return result_type
+    # TODO: double complex should be OK as well, but we need
+    # to make sure everything is supported.
+    elif (result_type.is_int or result_type.is_enum) and not might_overflow:
+        return result_type
+    elif (not result_type.can_coerce_to_pyobject(scope)
+            and not result_type.is_error):
+        return result_type
+    return py_object_type
+
+
+def get_type_inferer():
+    return SimpleAssignmentTypeInferer()

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/TypeSlots.py

@@ -0,0 +1,941 @@
+#
+#   Tables describing slots in the CPython type object
+#   and associated know-how.
+#
+
+from __future__ import absolute_import
+
+from . import Naming
+from . import PyrexTypes
+from .Errors import error
+
+invisible = ['__cinit__', '__dealloc__', '__richcmp__',
+             '__nonzero__', '__bool__']
+
+richcmp_special_methods = ['__eq__', '__ne__', '__lt__', '__gt__', '__le__', '__ge__']
+
+
+class Signature(object):
+    #  Method slot signature descriptor.
+    #
+    #  has_dummy_arg      boolean
+    #  has_generic_args   boolean
+    #  fixed_arg_format   string
+    #  ret_format         string
+    #  error_value        string
+    #
+    #  The formats are strings made up of the following
+    #  characters:
+    #
+    #    'O'  Python object
+    #    'T'  Python object of the type of 'self'
+    #    'v'  void
+    #    'p'  void *
+    #    'P'  void **
+    #    'i'  int
+    #    'b'  bint
+    #    'I'  int *
+    #    'l'  long
+    #    'f'  float
+    #    'd'  double
+    #    'h'  Py_hash_t
+    #    'z'  Py_ssize_t
+    #    'Z'  Py_ssize_t *
+    #    's'  char *
+    #    'S'  char **
+    #    'r'  int used only to signal exception
+    #    'B'  Py_buffer *
+    #    '-'  dummy 'self' argument (not used)
+    #    '*'  rest of args passed as generic Python
+    #           arg tuple and kw dict (must be last
+    #           char in format string)
+
+    format_map = {
+        'O': PyrexTypes.py_object_type,
+        'v': PyrexTypes.c_void_type,
+        'p': PyrexTypes.c_void_ptr_type,
+        'P': PyrexTypes.c_void_ptr_ptr_type,
+        'i': PyrexTypes.c_int_type,
+        'b': PyrexTypes.c_bint_type,
+        'I': PyrexTypes.c_int_ptr_type,
+        'l': PyrexTypes.c_long_type,
+        'f': PyrexTypes.c_float_type,
+        'd': PyrexTypes.c_double_type,
+        'h': PyrexTypes.c_py_hash_t_type,
+        'z': PyrexTypes.c_py_ssize_t_type,
+        'Z': PyrexTypes.c_py_ssize_t_ptr_type,
+        's': PyrexTypes.c_char_ptr_type,
+        'S': PyrexTypes.c_char_ptr_ptr_type,
+        'r': PyrexTypes.c_returncode_type,
+        'B': PyrexTypes.c_py_buffer_ptr_type,
+        # 'T', '-' and '*' are handled otherwise
+        # and are not looked up in here
+    }
+
+    type_to_format_map = dict(
+        (type_, format_) for format_, type_ in format_map.items())
+
+    error_value_map = {
+        'O': "NULL",
+        'T': "NULL",
+        'i': "-1",
+        'b': "-1",
+        'l': "-1",
+        'r': "-1",
+        'h': "-1",
+        'z': "-1",
+    }
+
+    def __init__(self, arg_format, ret_format):
+        self.has_dummy_arg = 0
+        self.has_generic_args = 0
+        if arg_format[:1] == '-':
+            self.has_dummy_arg = 1
+            arg_format = arg_format[1:]
+        if arg_format[-1:] == '*':
+            self.has_generic_args = 1
+            arg_format = arg_format[:-1]
+        self.fixed_arg_format = arg_format
+        self.ret_format = ret_format
+        self.error_value = self.error_value_map.get(ret_format, None)
+        self.exception_check = ret_format != 'r' and self.error_value is not None
+        self.is_staticmethod = False
+
+    def __repr__(self):
+        return '<Signature[%s(%s%s)]>' % (
+            self.ret_format,
+            ', '.join(self.fixed_arg_format),
+            '*' if self.has_generic_args else '')
+
+    def num_fixed_args(self):
+        return len(self.fixed_arg_format)
+
+    def is_self_arg(self, i):
+        # argument is 'self' for methods or 'class' for classmethods
+        return self.fixed_arg_format[i] == 'T'
+
+    def returns_self_type(self):
+        # return type is same as 'self' argument type
+        return self.ret_format == 'T'
+
+    def fixed_arg_type(self, i):
+        return self.format_map[self.fixed_arg_format[i]]
+
+    def return_type(self):
+        return self.format_map[self.ret_format]
+
+    def format_from_type(self, arg_type):
+        if arg_type.is_pyobject:
+            arg_type = PyrexTypes.py_object_type
+        return self.type_to_format_map[arg_type]
+
+    def exception_value(self):
+        return self.error_value_map.get(self.ret_format)
+
+    def function_type(self, self_arg_override=None):
+        #  Construct a C function type descriptor for this signature
+        args = []
+        for i in range(self.num_fixed_args()):
+            if self_arg_override is not None and self.is_self_arg(i):
+                assert isinstance(self_arg_override, PyrexTypes.CFuncTypeArg)
+                args.append(self_arg_override)
+            else:
+                arg_type = self.fixed_arg_type(i)
+                args.append(PyrexTypes.CFuncTypeArg("", arg_type, None))
+        if self_arg_override is not None and self.returns_self_type():
+            ret_type = self_arg_override.type
+        else:
+            ret_type = self.return_type()
+        exc_value = self.exception_value()
+        return PyrexTypes.CFuncType(
+            ret_type, args, exception_value=exc_value,
+            exception_check=self.exception_check)
+
+    def method_flags(self):
+        if self.ret_format == "O":
+            full_args = self.fixed_arg_format
+            if self.has_dummy_arg:
+                full_args = "O" + full_args
+            if full_args in ["O", "T"]:
+                if self.has_generic_args:
+                    return [method_varargs, method_keywords]
+                else:
+                    return [method_noargs]
+            elif full_args in ["OO", "TO"] and not self.has_generic_args:
+                return [method_onearg]
+
+            if self.is_staticmethod:
+                return [method_varargs, method_keywords]
+        return None
+
+
+class SlotDescriptor(object):
+    #  Abstract base class for type slot descriptors.
+    #
+    #  slot_name    string           Member name of the slot in the type object
+    #  is_initialised_dynamically    Is initialised by code in the module init function
+    #  is_inherited                  Is inherited by subtypes (see PyType_Ready())
+    #  py3                           Indicates presence of slot in Python 3
+    #  py2                           Indicates presence of slot in Python 2
+    #  ifdef                         Full #ifdef string that slot is wrapped in. Using this causes py3, py2 and flags to be ignored.)
+
+    def __init__(self, slot_name, dynamic=False, inherited=False,
+                 py3=True, py2=True, ifdef=None):
+        self.slot_name = slot_name
+        self.is_initialised_dynamically = dynamic
+        self.is_inherited = inherited
+        self.ifdef = ifdef
+        self.py3 = py3
+        self.py2 = py2
+
+    def preprocessor_guard_code(self):
+        ifdef = self.ifdef
+        py2 = self.py2
+        py3 = self.py3
+        guard = None
+        if ifdef:
+            guard = ("#if %s" % ifdef)
+        elif not py3 or py3 == '<RESERVED>':
+            guard = ("#if PY_MAJOR_VERSION < 3")
+        elif not py2:
+            guard = ("#if PY_MAJOR_VERSION >= 3")
+        return guard
+
+    def generate(self, scope, code):
+        preprocessor_guard = self.preprocessor_guard_code()
+        if preprocessor_guard:
+            code.putln(preprocessor_guard)
+
+        end_pypy_guard = False
+        if self.is_initialised_dynamically:
+            value = "0"
+        else:
+            value = self.slot_code(scope)
+            if value == "0" and self.is_inherited:
+                # PyPy currently has a broken PyType_Ready() that fails to
+                # inherit some slots.  To work around this, we explicitly
+                # set inherited slots here, but only in PyPy since CPython
+                # handles this better than we do.
+                inherited_value = value
+                current_scope = scope
+                while (inherited_value == "0"
+                       and current_scope.parent_type
+                       and current_scope.parent_type.base_type
+                       and current_scope.parent_type.base_type.scope):
+                    current_scope = current_scope.parent_type.base_type.scope
+                    inherited_value = self.slot_code(current_scope)
+                if inherited_value != "0":
+                    code.putln("#if CYTHON_COMPILING_IN_PYPY")
+                    code.putln("%s, /*%s*/" % (inherited_value, self.slot_name))
+                    code.putln("#else")
+                    end_pypy_guard = True
+
+        code.putln("%s, /*%s*/" % (value, self.slot_name))
+
+        if end_pypy_guard:
+            code.putln("#endif")
+
+        if self.py3 == '<RESERVED>':
+            code.putln("#else")
+            code.putln("0, /*reserved*/")
+        if preprocessor_guard:
+            code.putln("#endif")
+
+    # Some C implementations have trouble statically
+    # initialising a global with a pointer to an extern
+    # function, so we initialise some of the type slots
+    # in the module init function instead.
+
+    def generate_dynamic_init_code(self, scope, code):
+        if self.is_initialised_dynamically:
+            value = self.slot_code(scope)
+            if value != "0":
+                code.putln("%s.%s = %s;" % (
+                    scope.parent_type.typeobj_cname,
+                    self.slot_name,
+                    value
+                    )
+                )
+
+
+class FixedSlot(SlotDescriptor):
+    #  Descriptor for a type slot with a fixed value.
+    #
+    #  value        string
+
+    def __init__(self, slot_name, value, py3=True, py2=True, ifdef=None):
+        SlotDescriptor.__init__(self, slot_name, py3=py3, py2=py2, ifdef=ifdef)
+        self.value = value
+
+    def slot_code(self, scope):
+        return self.value
+
+
+class EmptySlot(FixedSlot):
+    #  Descriptor for a type slot whose value is always 0.
+
+    def __init__(self, slot_name, py3=True, py2=True, ifdef=None):
+        FixedSlot.__init__(self, slot_name, "0", py3=py3, py2=py2, ifdef=ifdef)
+
+
+class MethodSlot(SlotDescriptor):
+    #  Type slot descriptor for a user-definable method.
+    #
+    #  signature    Signature
+    #  method_name  string           The __xxx__ name of the method
+    #  alternatives [string]         Alternative list of __xxx__ names for the method
+
+    def __init__(self, signature, slot_name, method_name, fallback=None,
+                 py3=True, py2=True, ifdef=None, inherited=True):
+        SlotDescriptor.__init__(self, slot_name, py3=py3, py2=py2,
+                                ifdef=ifdef, inherited=inherited)
+        self.signature = signature
+        self.slot_name = slot_name
+        self.method_name = method_name
+        self.alternatives = []
+        method_name_to_slot[method_name] = self
+        #
+        if fallback:
+            self.alternatives.append(fallback)
+        for alt in (self.py2, self.py3):
+            if isinstance(alt, (tuple, list)):
+                slot_name, method_name = alt
+                self.alternatives.append(method_name)
+                method_name_to_slot[method_name] = self
+
+    def slot_code(self, scope):
+        entry = scope.lookup_here(self.method_name)
+        if entry and entry.is_special and entry.func_cname:
+            return entry.func_cname
+        for method_name in self.alternatives:
+            entry = scope.lookup_here(method_name)
+            if entry and entry.is_special and entry.func_cname:
+                return entry.func_cname
+        return "0"
+
+
+class InternalMethodSlot(SlotDescriptor):
+    #  Type slot descriptor for a method which is always
+    #  synthesized by Cython.
+    #
+    #  slot_name    string           Member name of the slot in the type object
+
+    def __init__(self, slot_name, **kargs):
+        SlotDescriptor.__init__(self, slot_name, **kargs)
+
+    def slot_code(self, scope):
+        return scope.mangle_internal(self.slot_name)
+
+
+class GCDependentSlot(InternalMethodSlot):
+    #  Descriptor for a slot whose value depends on whether
+    #  the type participates in GC.
+
+    def __init__(self, slot_name, **kargs):
+        InternalMethodSlot.__init__(self, slot_name, **kargs)
+
+    def slot_code(self, scope):
+        if not scope.needs_gc():
+            return "0"
+        if not scope.has_cyclic_pyobject_attrs:
+            # if the type does not have GC relevant object attributes, it can
+            # delegate GC methods to its parent - iff the parent functions
+            # are defined in the same module
+            parent_type_scope = scope.parent_type.base_type.scope
+            if scope.parent_scope is parent_type_scope.parent_scope:
+                entry = scope.parent_scope.lookup_here(scope.parent_type.base_type.name)
+                if entry.visibility != 'extern':
+                    return self.slot_code(parent_type_scope)
+        return InternalMethodSlot.slot_code(self, scope)
+
+
+class GCClearReferencesSlot(GCDependentSlot):
+
+    def slot_code(self, scope):
+        if scope.needs_tp_clear():
+            return GCDependentSlot.slot_code(self, scope)
+        return "0"
+
+
+class ConstructorSlot(InternalMethodSlot):
+    #  Descriptor for tp_new and tp_dealloc.
+
+    def __init__(self, slot_name, method, **kargs):
+        InternalMethodSlot.__init__(self, slot_name, **kargs)
+        self.method = method
+
+    def slot_code(self, scope):
+        entry = scope.lookup_here(self.method)
+        if (self.slot_name != 'tp_new'
+                and scope.parent_type.base_type
+                and not scope.has_pyobject_attrs
+                and not scope.has_memoryview_attrs
+                and not scope.has_cpp_class_attrs
+                and not (entry and entry.is_special)):
+            # if the type does not have object attributes, it can
+            # delegate GC methods to its parent - iff the parent
+            # functions are defined in the same module
+            parent_type_scope = scope.parent_type.base_type.scope
+            if scope.parent_scope is parent_type_scope.parent_scope:
+                entry = scope.parent_scope.lookup_here(scope.parent_type.base_type.name)
+                if entry.visibility != 'extern':
+                    return self.slot_code(parent_type_scope)
+        if entry and not entry.is_special:
+            return "0"
+        return InternalMethodSlot.slot_code(self, scope)
+
+
+class SyntheticSlot(InternalMethodSlot):
+    #  Type slot descriptor for a synthesized method which
+    #  dispatches to one or more user-defined methods depending
+    #  on its arguments. If none of the relevant methods are
+    #  defined, the method will not be synthesized and an
+    #  alternative default value will be placed in the type
+    #  slot.
+
+    def __init__(self, slot_name, user_methods, default_value, **kargs):
+        InternalMethodSlot.__init__(self, slot_name, **kargs)
+        self.user_methods = user_methods
+        self.default_value = default_value
+
+    def slot_code(self, scope):
+        if scope.defines_any_special(self.user_methods):
+            return InternalMethodSlot.slot_code(self, scope)
+        else:
+            return self.default_value
+
+
+class RichcmpSlot(MethodSlot):
+    def slot_code(self, scope):
+        entry = scope.lookup_here(self.method_name)
+        if entry and entry.is_special and entry.func_cname:
+            return entry.func_cname
+        elif scope.defines_any_special(richcmp_special_methods):
+            return scope.mangle_internal(self.slot_name)
+        else:
+            return "0"
+
+
+class TypeFlagsSlot(SlotDescriptor):
+    #  Descriptor for the type flags slot.
+
+    def slot_code(self, scope):
+        value = "Py_TPFLAGS_DEFAULT"
+        if scope.directives['type_version_tag']:
+            # it's not in 'Py_TPFLAGS_DEFAULT' in Py2
+            value += "|Py_TPFLAGS_HAVE_VERSION_TAG"
+        else:
+            # it's enabled in 'Py_TPFLAGS_DEFAULT' in Py3
+            value = "(%s&~Py_TPFLAGS_HAVE_VERSION_TAG)" % value
+        value += "|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER"
+        if not scope.parent_type.is_final_type:
+            value += "|Py_TPFLAGS_BASETYPE"
+        if scope.needs_gc():
+            value += "|Py_TPFLAGS_HAVE_GC"
+        return value
+
+
+class DocStringSlot(SlotDescriptor):
+    #  Descriptor for the docstring slot.
+
+    def slot_code(self, scope):
+        doc = scope.doc
+        if doc is None:
+            return "0"
+        if doc.is_unicode:
+            doc = doc.as_utf8_string()
+        return doc.as_c_string_literal()
+
+
+class SuiteSlot(SlotDescriptor):
+    #  Descriptor for a substructure of the type object.
+    #
+    #  sub_slots   [SlotDescriptor]
+
+    def __init__(self, sub_slots, slot_type, slot_name, ifdef=None):
+        SlotDescriptor.__init__(self, slot_name, ifdef=ifdef)
+        self.sub_slots = sub_slots
+        self.slot_type = slot_type
+        substructures.append(self)
+
+    def is_empty(self, scope):
+        for slot in self.sub_slots:
+            if slot.slot_code(scope) != "0":
+                return False
+        return True
+
+    def substructure_cname(self, scope):
+        return "%s%s_%s" % (Naming.pyrex_prefix, self.slot_name, scope.class_name)
+
+    def slot_code(self, scope):
+        if not self.is_empty(scope):
+            return "&%s" % self.substructure_cname(scope)
+        return "0"
+
+    def generate_substructure(self, scope, code):
+        if not self.is_empty(scope):
+            code.putln("")
+            if self.ifdef:
+                code.putln("#if %s" % self.ifdef)
+            code.putln(
+                "static %s %s = {" % (
+                    self.slot_type,
+                    self.substructure_cname(scope)))
+            for slot in self.sub_slots:
+                slot.generate(scope, code)
+            code.putln("};")
+            if self.ifdef:
+                code.putln("#endif")
+
+substructures = []   # List of all SuiteSlot instances
+
+class MethodTableSlot(SlotDescriptor):
+    #  Slot descriptor for the method table.
+
+    def slot_code(self, scope):
+        if scope.pyfunc_entries:
+            return scope.method_table_cname
+        else:
+            return "0"
+
+
+class MemberTableSlot(SlotDescriptor):
+    #  Slot descriptor for the table of Python-accessible attributes.
+
+    def slot_code(self, scope):
+        return "0"
+
+
+class GetSetSlot(SlotDescriptor):
+    #  Slot descriptor for the table of attribute get & set methods.
+
+    def slot_code(self, scope):
+        if scope.property_entries:
+            return scope.getset_table_cname
+        else:
+            return "0"
+
+
+class BaseClassSlot(SlotDescriptor):
+    #  Slot descriptor for the base class slot.
+
+    def __init__(self, name):
+        SlotDescriptor.__init__(self, name, dynamic = 1)
+
+    def generate_dynamic_init_code(self, scope, code):
+        base_type = scope.parent_type.base_type
+        if base_type:
+            code.putln("%s.%s = %s;" % (
+                scope.parent_type.typeobj_cname,
+                self.slot_name,
+                base_type.typeptr_cname))
+
+
+class DictOffsetSlot(SlotDescriptor):
+    #  Slot descriptor for a class' dict offset, for dynamic attributes.
+
+    def slot_code(self, scope):
+        dict_entry = scope.lookup_here("__dict__") if not scope.is_closure_class_scope else None
+        if dict_entry and dict_entry.is_variable:
+            if getattr(dict_entry.type, 'cname', None) != 'PyDict_Type':
+                error(dict_entry.pos, "__dict__ slot must be of type 'dict'")
+                return "0"
+            type = scope.parent_type
+            if type.typedef_flag:
+                objstruct = type.objstruct_cname
+            else:
+                objstruct = "struct %s" % type.objstruct_cname
+            return ("offsetof(%s, %s)" % (
+                        objstruct,
+                        dict_entry.cname))
+        else:
+            return "0"
+
+
+# The following dictionary maps __xxx__ method names to slot descriptors.
+
+method_name_to_slot = {}
+
+## The following slots are (or could be) initialised with an
+## extern function pointer.
+#
+#slots_initialised_from_extern = (
+#    "tp_free",
+#)
+
+#------------------------------------------------------------------------------------------
+#
+#  Utility functions for accessing slot table data structures
+#
+#------------------------------------------------------------------------------------------
+
+def get_special_method_signature(name):
+    #  Given a method name, if it is a special method,
+    #  return its signature, else return None.
+    slot = method_name_to_slot.get(name)
+    if slot:
+        return slot.signature
+    elif name in richcmp_special_methods:
+        return ibinaryfunc
+    else:
+        return None
+
+
+def get_property_accessor_signature(name):
+    #  Return signature of accessor for an extension type
+    #  property, else None.
+    return property_accessor_signatures.get(name)
+
+
+def get_base_slot_function(scope, slot):
+    #  Returns the function implementing this slot in the baseclass.
+    #  This is useful for enabling the compiler to optimize calls
+    #  that recursively climb the class hierarchy.
+    base_type = scope.parent_type.base_type
+    if scope.parent_scope is base_type.scope.parent_scope:
+        parent_slot = slot.slot_code(base_type.scope)
+        if parent_slot != '0':
+            entry = scope.parent_scope.lookup_here(scope.parent_type.base_type.name)
+            if entry.visibility != 'extern':
+                return parent_slot
+    return None
+
+
+def get_slot_function(scope, slot):
+    #  Returns the function implementing this slot in the baseclass.
+    #  This is useful for enabling the compiler to optimize calls
+    #  that recursively climb the class hierarchy.
+    slot_code = slot.slot_code(scope)
+    if slot_code != '0':
+        entry = scope.parent_scope.lookup_here(scope.parent_type.name)
+        if entry.visibility != 'extern':
+            return slot_code
+    return None
+
+
+def get_slot_by_name(slot_name):
+    # For now, only search the type struct, no referenced sub-structs.
+    for slot in slot_table:
+        if slot.slot_name == slot_name:
+            return slot
+    assert False, "Slot not found: %s" % slot_name
+
+
+def get_slot_code_by_name(scope, slot_name):
+    slot = get_slot_by_name(slot_name)
+    return slot.slot_code(scope)
+
+def is_reverse_number_slot(name):
+    """
+    Tries to identify __radd__ and friends (so the METH_COEXIST flag can be applied).
+
+    There's no great consequence if it inadvertently identifies a few other methods
+    so just use a simple rule rather than an exact list.
+    """
+    if name.startswith("__r") and name.endswith("__"):
+        forward_name = name.replace("r", "", 1)
+        for meth in PyNumberMethods:
+            if getattr(meth, "method_name", None) == forward_name:
+                return True
+    return False
+
+
+#------------------------------------------------------------------------------------------
+#
+#  Signatures for generic Python functions and methods.
+#
+#------------------------------------------------------------------------------------------
+
+pyfunction_signature = Signature("-*", "O")
+pymethod_signature = Signature("T*", "O")
+
+#------------------------------------------------------------------------------------------
+#
+#  Signatures for simple Python functions.
+#
+#------------------------------------------------------------------------------------------
+
+pyfunction_noargs = Signature("-", "O")
+pyfunction_onearg = Signature("-O", "O")
+
+#------------------------------------------------------------------------------------------
+#
+#  Signatures for the various kinds of function that
+#  can appear in the type object and its substructures.
+#
+#------------------------------------------------------------------------------------------
+
+unaryfunc = Signature("T", "O")            # typedef PyObject * (*unaryfunc)(PyObject *);
+binaryfunc = Signature("OO", "O")          # typedef PyObject * (*binaryfunc)(PyObject *, PyObject *);
+ibinaryfunc = Signature("TO", "O")         # typedef PyObject * (*binaryfunc)(PyObject *, PyObject *);
+ternaryfunc = Signature("OOO", "O")        # typedef PyObject * (*ternaryfunc)(PyObject *, PyObject *, PyObject *);
+iternaryfunc = Signature("TOO", "O")       # typedef PyObject * (*ternaryfunc)(PyObject *, PyObject *, PyObject *);
+callfunc = Signature("T*", "O")            # typedef PyObject * (*ternaryfunc)(PyObject *, PyObject *, PyObject *);
+inquiry = Signature("T", "i")              # typedef int (*inquiry)(PyObject *);
+lenfunc = Signature("T", "z")              # typedef Py_ssize_t (*lenfunc)(PyObject *);
+
+                                           # typedef int (*coercion)(PyObject **, PyObject **);
+intargfunc = Signature("Ti", "O")          # typedef PyObject *(*intargfunc)(PyObject *, int);
+ssizeargfunc = Signature("Tz", "O")        # typedef PyObject *(*ssizeargfunc)(PyObject *, Py_ssize_t);
+intintargfunc = Signature("Tii", "O")      # typedef PyObject *(*intintargfunc)(PyObject *, int, int);
+ssizessizeargfunc = Signature("Tzz", "O")  # typedef PyObject *(*ssizessizeargfunc)(PyObject *, Py_ssize_t, Py_ssize_t);
+intobjargproc = Signature("TiO", 'r')      # typedef int(*intobjargproc)(PyObject *, int, PyObject *);
+ssizeobjargproc = Signature("TzO", 'r')    # typedef int(*ssizeobjargproc)(PyObject *, Py_ssize_t, PyObject *);
+intintobjargproc = Signature("TiiO", 'r')  # typedef int(*intintobjargproc)(PyObject *, int, int, PyObject *);
+ssizessizeobjargproc = Signature("TzzO", 'r') # typedef int(*ssizessizeobjargproc)(PyObject *, Py_ssize_t, Py_ssize_t, PyObject *);
+
+intintargproc = Signature("Tii", 'r')
+ssizessizeargproc = Signature("Tzz", 'r')
+objargfunc = Signature("TO", "O")
+objobjargproc = Signature("TOO", 'r')      # typedef int (*objobjargproc)(PyObject *, PyObject *, PyObject *);
+readbufferproc = Signature("TzP", "z")     # typedef Py_ssize_t (*readbufferproc)(PyObject *, Py_ssize_t, void **);
+writebufferproc = Signature("TzP", "z")    # typedef Py_ssize_t (*writebufferproc)(PyObject *, Py_ssize_t, void **);
+segcountproc = Signature("TZ", "z")        # typedef Py_ssize_t (*segcountproc)(PyObject *, Py_ssize_t *);
+charbufferproc = Signature("TzS", "z")     # typedef Py_ssize_t (*charbufferproc)(PyObject *, Py_ssize_t, char **);
+objargproc = Signature("TO", 'r')          # typedef int (*objobjproc)(PyObject *, PyObject *);
+                                           # typedef int (*visitproc)(PyObject *, void *);
+                                           # typedef int (*traverseproc)(PyObject *, visitproc, void *);
+
+destructor = Signature("T", "v")           # typedef void (*destructor)(PyObject *);
+# printfunc = Signature("TFi", 'r')        # typedef int (*printfunc)(PyObject *, FILE *, int);
+                                           # typedef PyObject *(*getattrfunc)(PyObject *, char *);
+getattrofunc = Signature("TO", "O")        # typedef PyObject *(*getattrofunc)(PyObject *, PyObject *);
+                                           # typedef int (*setattrfunc)(PyObject *, char *, PyObject *);
+setattrofunc = Signature("TOO", 'r')       # typedef int (*setattrofunc)(PyObject *, PyObject *, PyObject *);
+delattrofunc = Signature("TO", 'r')
+cmpfunc = Signature("TO", "i")             # typedef int (*cmpfunc)(PyObject *, PyObject *);
+reprfunc = Signature("T", "O")             # typedef PyObject *(*reprfunc)(PyObject *);
+hashfunc = Signature("T", "h")             # typedef Py_hash_t (*hashfunc)(PyObject *);
+richcmpfunc = Signature("TOi", "O")        # typedef PyObject *(*richcmpfunc) (PyObject *, PyObject *, int);
+getiterfunc = Signature("T", "O")          # typedef PyObject *(*getiterfunc) (PyObject *);
+iternextfunc = Signature("T", "O")         # typedef PyObject *(*iternextfunc) (PyObject *);
+descrgetfunc = Signature("TOO", "O")       # typedef PyObject *(*descrgetfunc) (PyObject *, PyObject *, PyObject *);
+descrsetfunc = Signature("TOO", 'r')       # typedef int (*descrsetfunc) (PyObject *, PyObject *, PyObject *);
+descrdelfunc = Signature("TO", 'r')
+initproc = Signature("T*", 'r')            # typedef int (*initproc)(PyObject *, PyObject *, PyObject *);
+                                           # typedef PyObject *(*newfunc)(struct _typeobject *, PyObject *, PyObject *);
+                                           # typedef PyObject *(*allocfunc)(struct _typeobject *, int);
+
+getbufferproc = Signature("TBi", "r")      # typedef int (*getbufferproc)(PyObject *, Py_buffer *, int);
+releasebufferproc = Signature("TB", "v")   # typedef void (*releasebufferproc)(PyObject *, Py_buffer *);
+
+
+#------------------------------------------------------------------------------------------
+#
+#  Signatures for accessor methods of properties.
+#
+#------------------------------------------------------------------------------------------
+
+property_accessor_signatures = {
+    '__get__': Signature("T", "O"),
+    '__set__': Signature("TO", 'r'),
+    '__del__': Signature("T", 'r')
+}
+
+#------------------------------------------------------------------------------------------
+#
+#  Descriptor tables for the slots of the various type object
+#  substructures, in the order they appear in the structure.
+#
+#------------------------------------------------------------------------------------------
+
+PyNumberMethods_Py3_GUARD = "PY_MAJOR_VERSION < 3 || (CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x03050000)"
+
+PyNumberMethods = (
+    MethodSlot(binaryfunc, "nb_add", "__add__"),
+    MethodSlot(binaryfunc, "nb_subtract", "__sub__"),
+    MethodSlot(binaryfunc, "nb_multiply", "__mul__"),
+    MethodSlot(binaryfunc, "nb_divide", "__div__", ifdef = PyNumberMethods_Py3_GUARD),
+    MethodSlot(binaryfunc, "nb_remainder", "__mod__"),
+    MethodSlot(binaryfunc, "nb_divmod", "__divmod__"),
+    MethodSlot(ternaryfunc, "nb_power", "__pow__"),
+    MethodSlot(unaryfunc, "nb_negative", "__neg__"),
+    MethodSlot(unaryfunc, "nb_positive", "__pos__"),
+    MethodSlot(unaryfunc, "nb_absolute", "__abs__"),
+    MethodSlot(inquiry, "nb_nonzero", "__nonzero__", py3 = ("nb_bool", "__bool__")),
+    MethodSlot(unaryfunc, "nb_invert", "__invert__"),
+    MethodSlot(binaryfunc, "nb_lshift", "__lshift__"),
+    MethodSlot(binaryfunc, "nb_rshift", "__rshift__"),
+    MethodSlot(binaryfunc, "nb_and", "__and__"),
+    MethodSlot(binaryfunc, "nb_xor", "__xor__"),
+    MethodSlot(binaryfunc, "nb_or", "__or__"),
+    EmptySlot("nb_coerce", ifdef = PyNumberMethods_Py3_GUARD),
+    MethodSlot(unaryfunc, "nb_int", "__int__", fallback="__long__"),
+    MethodSlot(unaryfunc, "nb_long", "__long__", fallback="__int__", py3 = "<RESERVED>"),
+    MethodSlot(unaryfunc, "nb_float", "__float__"),
+    MethodSlot(unaryfunc, "nb_oct", "__oct__", ifdef = PyNumberMethods_Py3_GUARD),
+    MethodSlot(unaryfunc, "nb_hex", "__hex__", ifdef = PyNumberMethods_Py3_GUARD),
+
+    # Added in release 2.0
+    MethodSlot(ibinaryfunc, "nb_inplace_add", "__iadd__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_subtract", "__isub__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_multiply", "__imul__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_divide", "__idiv__", ifdef = PyNumberMethods_Py3_GUARD),
+    MethodSlot(ibinaryfunc, "nb_inplace_remainder", "__imod__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_power", "__ipow__"), # actually ternaryfunc!!!
+    MethodSlot(ibinaryfunc, "nb_inplace_lshift", "__ilshift__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_rshift", "__irshift__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_and", "__iand__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_xor", "__ixor__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_or", "__ior__"),
+
+    # Added in release 2.2
+    # The following require the Py_TPFLAGS_HAVE_CLASS flag
+    MethodSlot(binaryfunc, "nb_floor_divide", "__floordiv__"),
+    MethodSlot(binaryfunc, "nb_true_divide", "__truediv__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_floor_divide", "__ifloordiv__"),
+    MethodSlot(ibinaryfunc, "nb_inplace_true_divide", "__itruediv__"),
+
+    # Added in release 2.5
+    MethodSlot(unaryfunc, "nb_index", "__index__"),
+
+    # Added in release 3.5
+    MethodSlot(binaryfunc, "nb_matrix_multiply", "__matmul__", ifdef="PY_VERSION_HEX >= 0x03050000"),
+    MethodSlot(ibinaryfunc, "nb_inplace_matrix_multiply", "__imatmul__", ifdef="PY_VERSION_HEX >= 0x03050000"),
+)
+
+PySequenceMethods = (
+    MethodSlot(lenfunc, "sq_length", "__len__"),
+    EmptySlot("sq_concat"), # nb_add used instead
+    EmptySlot("sq_repeat"), # nb_multiply used instead
+    SyntheticSlot("sq_item", ["__getitem__"], "0"),    #EmptySlot("sq_item"),   # mp_subscript used instead
+    MethodSlot(ssizessizeargfunc, "sq_slice", "__getslice__"),
+    EmptySlot("sq_ass_item"), # mp_ass_subscript used instead
+    SyntheticSlot("sq_ass_slice", ["__setslice__", "__delslice__"], "0"),
+    MethodSlot(cmpfunc, "sq_contains", "__contains__"),
+    EmptySlot("sq_inplace_concat"), # nb_inplace_add used instead
+    EmptySlot("sq_inplace_repeat"), # nb_inplace_multiply used instead
+)
+
+PyMappingMethods = (
+    MethodSlot(lenfunc, "mp_length", "__len__"),
+    MethodSlot(objargfunc, "mp_subscript", "__getitem__"),
+    SyntheticSlot("mp_ass_subscript", ["__setitem__", "__delitem__"], "0"),
+)
+
+PyBufferProcs = (
+    MethodSlot(readbufferproc, "bf_getreadbuffer", "__getreadbuffer__", py3 = False),
+    MethodSlot(writebufferproc, "bf_getwritebuffer", "__getwritebuffer__", py3 = False),
+    MethodSlot(segcountproc, "bf_getsegcount", "__getsegcount__", py3 = False),
+    MethodSlot(charbufferproc, "bf_getcharbuffer", "__getcharbuffer__", py3 = False),
+
+    MethodSlot(getbufferproc, "bf_getbuffer", "__getbuffer__"),
+    MethodSlot(releasebufferproc, "bf_releasebuffer", "__releasebuffer__")
+)
+
+PyAsyncMethods = (
+    MethodSlot(unaryfunc, "am_await", "__await__"),
+    MethodSlot(unaryfunc, "am_aiter", "__aiter__"),
+    MethodSlot(unaryfunc, "am_anext", "__anext__"),
+    EmptySlot("am_send", ifdef="PY_VERSION_HEX >= 0x030A00A3"),
+)
+
+#------------------------------------------------------------------------------------------
+#
+#  The main slot table. This table contains descriptors for all the
+#  top-level type slots, beginning with tp_dealloc, in the order they
+#  appear in the type object.
+#
+#------------------------------------------------------------------------------------------
+
+slot_table = (
+    ConstructorSlot("tp_dealloc", '__dealloc__'),
+    EmptySlot("tp_print", ifdef="PY_VERSION_HEX < 0x030800b4"),
+    EmptySlot("tp_vectorcall_offset", ifdef="PY_VERSION_HEX >= 0x030800b4"),
+    EmptySlot("tp_getattr"),
+    EmptySlot("tp_setattr"),
+
+    # tp_compare (Py2) / tp_reserved (Py3<3.5) / tp_as_async (Py3.5+) is always used as tp_as_async in Py3
+    MethodSlot(cmpfunc, "tp_compare", "__cmp__", ifdef="PY_MAJOR_VERSION < 3"),
+    SuiteSlot(PyAsyncMethods, "__Pyx_PyAsyncMethodsStruct", "tp_as_async", ifdef="PY_MAJOR_VERSION >= 3"),
+
+    MethodSlot(reprfunc, "tp_repr", "__repr__"),
+
+    SuiteSlot(PyNumberMethods, "PyNumberMethods", "tp_as_number"),
+    SuiteSlot(PySequenceMethods, "PySequenceMethods", "tp_as_sequence"),
+    SuiteSlot(PyMappingMethods, "PyMappingMethods", "tp_as_mapping"),
+
+    MethodSlot(hashfunc, "tp_hash", "__hash__", inherited=False),    # Py3 checks for __richcmp__
+    MethodSlot(callfunc, "tp_call", "__call__"),
+    MethodSlot(reprfunc, "tp_str", "__str__"),
+
+    SyntheticSlot("tp_getattro", ["__getattr__","__getattribute__"], "0"), #"PyObject_GenericGetAttr"),
+    SyntheticSlot("tp_setattro", ["__setattr__", "__delattr__"], "0"), #"PyObject_GenericSetAttr"),
+
+    SuiteSlot(PyBufferProcs, "PyBufferProcs", "tp_as_buffer"),
+
+    TypeFlagsSlot("tp_flags"),
+    DocStringSlot("tp_doc"),
+
+    GCDependentSlot("tp_traverse"),
+    GCClearReferencesSlot("tp_clear"),
+
+    RichcmpSlot(richcmpfunc, "tp_richcompare", "__richcmp__", inherited=False),  # Py3 checks for __hash__
+
+    EmptySlot("tp_weaklistoffset"),
+
+    MethodSlot(getiterfunc, "tp_iter", "__iter__"),
+    MethodSlot(iternextfunc, "tp_iternext", "__next__"),
+
+    MethodTableSlot("tp_methods"),
+    MemberTableSlot("tp_members"),
+    GetSetSlot("tp_getset"),
+
+    BaseClassSlot("tp_base"), #EmptySlot("tp_base"),
+    EmptySlot("tp_dict"),
+
+    SyntheticSlot("tp_descr_get", ["__get__"], "0"),
+    SyntheticSlot("tp_descr_set", ["__set__", "__delete__"], "0"),
+
+    DictOffsetSlot("tp_dictoffset"),
+
+    MethodSlot(initproc, "tp_init", "__init__"),
+    EmptySlot("tp_alloc"), #FixedSlot("tp_alloc", "PyType_GenericAlloc"),
+    InternalMethodSlot("tp_new"),
+    EmptySlot("tp_free"),
+
+    EmptySlot("tp_is_gc"),
+    EmptySlot("tp_bases"),
+    EmptySlot("tp_mro"),
+    EmptySlot("tp_cache"),
+    EmptySlot("tp_subclasses"),
+    EmptySlot("tp_weaklist"),
+    EmptySlot("tp_del"),
+    EmptySlot("tp_version_tag"),
+    EmptySlot("tp_finalize", ifdef="PY_VERSION_HEX >= 0x030400a1"),
+    EmptySlot("tp_vectorcall", ifdef="PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)"),
+    EmptySlot("tp_print", ifdef="PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000"),
+    # PyPy specific extension - only here to avoid C compiler warnings.
+    EmptySlot("tp_pypy_flags", ifdef="CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000"),
+)
+
+#------------------------------------------------------------------------------------------
+#
+#  Descriptors for special methods which don't appear directly
+#  in the type object or its substructures. These methods are
+#  called from slot functions synthesized by Cython.
+#
+#------------------------------------------------------------------------------------------
+
+MethodSlot(initproc, "", "__cinit__")
+MethodSlot(destructor, "", "__dealloc__")
+MethodSlot(objobjargproc, "", "__setitem__")
+MethodSlot(objargproc, "", "__delitem__")
+MethodSlot(ssizessizeobjargproc, "", "__setslice__")
+MethodSlot(ssizessizeargproc, "", "__delslice__")
+MethodSlot(getattrofunc, "", "__getattr__")
+MethodSlot(getattrofunc, "", "__getattribute__")
+MethodSlot(setattrofunc, "", "__setattr__")
+MethodSlot(delattrofunc, "", "__delattr__")
+MethodSlot(descrgetfunc, "", "__get__")
+MethodSlot(descrsetfunc, "", "__set__")
+MethodSlot(descrdelfunc, "", "__delete__")
+
+
+# Method flags for python-exposed methods.
+
+method_noargs   = "METH_NOARGS"
+method_onearg   = "METH_O"
+method_varargs  = "METH_VARARGS"
+method_keywords = "METH_KEYWORDS"
+method_coexist  = "METH_COEXIST"

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/UtilNodes.py

@@ -0,0 +1,359 @@
+#
+# Nodes used as utilities and support for transforms etc.
+# These often make up sets including both Nodes and ExprNodes
+# so it is convenient to have them in a separate module.
+#
+
+from __future__ import absolute_import
+
+from . import Nodes
+from . import ExprNodes
+from .Nodes import Node
+from .ExprNodes import AtomicExprNode
+from .PyrexTypes import c_ptr_type
+
+
+class TempHandle(object):
+    # THIS IS DEPRECATED, USE LetRefNode instead
+    temp = None
+    needs_xdecref = False
+    def __init__(self, type, needs_cleanup=None):
+        self.type = type
+        if needs_cleanup is None:
+            self.needs_cleanup = type.is_pyobject
+        else:
+            self.needs_cleanup = needs_cleanup
+
+    def ref(self, pos):
+        return TempRefNode(pos, handle=self, type=self.type)
+
+
+class TempRefNode(AtomicExprNode):
+    # THIS IS DEPRECATED, USE LetRefNode instead
+    # handle   TempHandle
+
+    def analyse_types(self, env):
+        assert self.type == self.handle.type
+        return self
+
+    def analyse_target_types(self, env):
+        assert self.type == self.handle.type
+        return self
+
+    def analyse_target_declaration(self, env):
+        pass
+
+    def calculate_result_code(self):
+        result = self.handle.temp
+        if result is None: result = "<error>" # might be called and overwritten
+        return result
+
+    def generate_result_code(self, code):
+        pass
+
+    def generate_assignment_code(self, rhs, code, overloaded_assignment=False):
+        if self.type.is_pyobject:
+            rhs.make_owned_reference(code)
+            # TODO: analyse control flow to see if this is necessary
+            code.put_xdecref(self.result(), self.ctype())
+        code.putln('%s = %s;' % (
+            self.result(),
+            rhs.result() if overloaded_assignment else rhs.result_as(self.ctype()),
+        ))
+        rhs.generate_post_assignment_code(code)
+        rhs.free_temps(code)
+
+
+class TempsBlockNode(Node):
+    # THIS IS DEPRECATED, USE LetNode instead
+
+    """
+    Creates a block which allocates temporary variables.
+    This is used by transforms to output constructs that need
+    to make use of a temporary variable. Simply pass the types
+    of the needed temporaries to the constructor.
+
+    The variables can be referred to using a TempRefNode
+    (which can be constructed by calling get_ref_node).
+    """
+
+    # temps   [TempHandle]
+    # body    StatNode
+
+    child_attrs = ["body"]
+
+    def generate_execution_code(self, code):
+        for handle in self.temps:
+            handle.temp = code.funcstate.allocate_temp(
+                handle.type, manage_ref=handle.needs_cleanup)
+        self.body.generate_execution_code(code)
+        for handle in self.temps:
+            if handle.needs_cleanup:
+                if handle.needs_xdecref:
+                    code.put_xdecref_clear(handle.temp, handle.type)
+                else:
+                    code.put_decref_clear(handle.temp, handle.type)
+            code.funcstate.release_temp(handle.temp)
+
+    def analyse_declarations(self, env):
+        self.body.analyse_declarations(env)
+
+    def analyse_expressions(self, env):
+        self.body = self.body.analyse_expressions(env)
+        return self
+
+    def generate_function_definitions(self, env, code):
+        self.body.generate_function_definitions(env, code)
+
+    def annotate(self, code):
+        self.body.annotate(code)
+
+
+class ResultRefNode(AtomicExprNode):
+    # A reference to the result of an expression.  The result_code
+    # must be set externally (usually a temp name).
+
+    subexprs = []
+    lhs_of_first_assignment = False
+
+    def __init__(self, expression=None, pos=None, type=None, may_hold_none=True, is_temp=False):
+        self.expression = expression
+        self.pos = None
+        self.may_hold_none = may_hold_none
+        if expression is not None:
+            self.pos = expression.pos
+            if hasattr(expression, "type"):
+                self.type = expression.type
+        if pos is not None:
+            self.pos = pos
+        if type is not None:
+            self.type = type
+        if is_temp:
+            self.is_temp = True
+        assert self.pos is not None
+
+    def clone_node(self):
+        # nothing to do here
+        return self
+
+    def type_dependencies(self, env):
+        if self.expression:
+            return self.expression.type_dependencies(env)
+        else:
+            return ()
+
+    def update_expression(self, expression):
+        self.expression = expression
+        if hasattr(expression, "type"):
+            self.type = expression.type
+
+    def analyse_types(self, env):
+        if self.expression is not None:
+            if not self.expression.type:
+              self.expression = self.expression.analyse_types(env)
+            self.type = self.expression.type
+        return self
+
+    def infer_type(self, env):
+        if self.type is not None:
+            return self.type
+        if self.expression is not None:
+            if self.expression.type is not None:
+                return self.expression.type
+            return self.expression.infer_type(env)
+        assert False, "cannot infer type of ResultRefNode"
+
+    def may_be_none(self):
+        if not self.type.is_pyobject:
+            return False
+        return self.may_hold_none
+
+    def _DISABLED_may_be_none(self):
+        # not sure if this is safe - the expression may not be the
+        # only value that gets assigned
+        if self.expression is not None:
+            return self.expression.may_be_none()
+        if self.type is not None:
+            return self.type.is_pyobject
+        return True # play safe
+
+    def is_simple(self):
+        return True
+
+    def result(self):
+        try:
+            return self.result_code
+        except AttributeError:
+            if self.expression is not None:
+                self.result_code = self.expression.result()
+        return self.result_code
+
+    def generate_evaluation_code(self, code):
+        pass
+
+    def generate_result_code(self, code):
+        pass
+
+    def generate_disposal_code(self, code):
+        pass
+
+    def generate_assignment_code(self, rhs, code, overloaded_assignment=False):
+        if self.type.is_pyobject:
+            rhs.make_owned_reference(code)
+            if not self.lhs_of_first_assignment:
+                code.put_decref(self.result(), self.ctype())
+        code.putln('%s = %s;' % (
+            self.result(),
+            rhs.result() if overloaded_assignment else rhs.result_as(self.ctype()),
+        ))
+        rhs.generate_post_assignment_code(code)
+        rhs.free_temps(code)
+
+    def allocate_temps(self, env):
+        pass
+
+    def release_temp(self, env):
+        pass
+
+    def free_temps(self, code):
+        pass
+
+
+class LetNodeMixin:
+    def set_temp_expr(self, lazy_temp):
+        self.lazy_temp = lazy_temp
+        self.temp_expression = lazy_temp.expression
+
+    def setup_temp_expr(self, code):
+        self.temp_expression.generate_evaluation_code(code)
+        self.temp_type = self.temp_expression.type
+        if self.temp_type.is_array:
+            self.temp_type = c_ptr_type(self.temp_type.base_type)
+        self._result_in_temp = self.temp_expression.result_in_temp()
+        if self._result_in_temp:
+            self.temp = self.temp_expression.result()
+        else:
+            self.temp_expression.make_owned_reference(code)
+            self.temp = code.funcstate.allocate_temp(
+                self.temp_type, manage_ref=True)
+            code.putln("%s = %s;" % (self.temp, self.temp_expression.result()))
+            self.temp_expression.generate_disposal_code(code)
+            self.temp_expression.free_temps(code)
+        self.lazy_temp.result_code = self.temp
+
+    def teardown_temp_expr(self, code):
+        if self._result_in_temp:
+            self.temp_expression.generate_disposal_code(code)
+            self.temp_expression.free_temps(code)
+        else:
+            if self.temp_type.is_pyobject:
+                code.put_decref_clear(self.temp, self.temp_type)
+            code.funcstate.release_temp(self.temp)
+
+
+class EvalWithTempExprNode(ExprNodes.ExprNode, LetNodeMixin):
+    # A wrapper around a subexpression that moves an expression into a
+    # temp variable and provides it to the subexpression.
+
+    subexprs = ['temp_expression', 'subexpression']
+
+    def __init__(self, lazy_temp, subexpression):
+        self.set_temp_expr(lazy_temp)
+        self.pos = subexpression.pos
+        self.subexpression = subexpression
+        # if called after type analysis, we already know the type here
+        self.type = self.subexpression.type
+
+    def infer_type(self, env):
+        return self.subexpression.infer_type(env)
+
+    def may_be_none(self):
+        return self.subexpression.may_be_none()
+
+    def result(self):
+        return self.subexpression.result()
+
+    def analyse_types(self, env):
+        self.temp_expression = self.temp_expression.analyse_types(env)
+        self.lazy_temp.update_expression(self.temp_expression)  # overwrite in case it changed
+        self.subexpression = self.subexpression.analyse_types(env)
+        self.type = self.subexpression.type
+        return self
+
+    def free_subexpr_temps(self, code):
+        self.subexpression.free_temps(code)
+
+    def generate_subexpr_disposal_code(self, code):
+        self.subexpression.generate_disposal_code(code)
+
+    def generate_evaluation_code(self, code):
+        self.setup_temp_expr(code)
+        self.subexpression.generate_evaluation_code(code)
+        self.teardown_temp_expr(code)
+
+
+LetRefNode = ResultRefNode
+
+
+class LetNode(Nodes.StatNode, LetNodeMixin):
+    # Implements a local temporary variable scope. Imagine this
+    # syntax being present:
+    # let temp = VALUE:
+    #     BLOCK (can modify temp)
+    #     if temp is an object, decref
+    #
+    # Usually used after analysis phase, but forwards analysis methods
+    # to its children
+
+    child_attrs = ['temp_expression', 'body']
+
+    def __init__(self, lazy_temp, body):
+        self.set_temp_expr(lazy_temp)
+        self.pos = body.pos
+        self.body = body
+
+    def analyse_declarations(self, env):
+        self.temp_expression.analyse_declarations(env)
+        self.body.analyse_declarations(env)
+
+    def analyse_expressions(self, env):
+        self.temp_expression = self.temp_expression.analyse_expressions(env)
+        self.body = self.body.analyse_expressions(env)
+        return self
+
+    def generate_execution_code(self, code):
+        self.setup_temp_expr(code)
+        self.body.generate_execution_code(code)
+        self.teardown_temp_expr(code)
+
+    def generate_function_definitions(self, env, code):
+        self.temp_expression.generate_function_definitions(env, code)
+        self.body.generate_function_definitions(env, code)
+
+
+class TempResultFromStatNode(ExprNodes.ExprNode):
+    # An ExprNode wrapper around a StatNode that executes the StatNode
+    # body.  Requires a ResultRefNode that it sets up to refer to its
+    # own temp result.  The StatNode must assign a value to the result
+    # node, which then becomes the result of this node.
+
+    subexprs = []
+    child_attrs = ['body']
+
+    def __init__(self, result_ref, body):
+        self.result_ref = result_ref
+        self.pos = body.pos
+        self.body = body
+        self.type = result_ref.type
+        self.is_temp = 1
+
+    def analyse_declarations(self, env):
+        self.body.analyse_declarations(env)
+
+    def analyse_types(self, env):
+        self.body = self.body.analyse_expressions(env)
+        return self
+
+    def generate_result_code(self, code):
+        self.result_ref.result_code = self.result()
+        self.body.generate_execution_code(code)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/UtilityCode.py

@@ -0,0 +1,237 @@
+from __future__ import absolute_import
+
+from .TreeFragment import parse_from_strings, StringParseContext
+from . import Symtab
+from . import Naming
+from . import Code
+
+
+class NonManglingModuleScope(Symtab.ModuleScope):
+
+    def __init__(self, prefix, *args, **kw):
+        self.prefix = prefix
+        self.cython_scope = None
+        self.cpp = kw.pop('cpp', False)
+        Symtab.ModuleScope.__init__(self, *args, **kw)
+
+    def add_imported_entry(self, name, entry, pos):
+        entry.used = True
+        return super(NonManglingModuleScope, self).add_imported_entry(name, entry, pos)
+
+    def mangle(self, prefix, name=None):
+        if name:
+            if prefix in (Naming.typeobj_prefix, Naming.func_prefix, Naming.var_prefix, Naming.pyfunc_prefix):
+                # Functions, classes etc. gets a manually defined prefix easily
+                # manually callable instead (the one passed to CythonUtilityCode)
+                prefix = self.prefix
+            return "%s%s" % (prefix, name)
+        else:
+            return Symtab.ModuleScope.mangle(self, prefix)
+
+
+class CythonUtilityCodeContext(StringParseContext):
+    scope = None
+
+    def find_module(self, module_name, relative_to=None, pos=None, need_pxd=True, absolute_fallback=True):
+        if relative_to:
+            raise AssertionError("Relative imports not supported in utility code.")
+        if module_name != self.module_name:
+            if module_name not in self.modules:
+                raise AssertionError("Only the cython cimport is supported.")
+            else:
+                return self.modules[module_name]
+
+        if self.scope is None:
+            self.scope = NonManglingModuleScope(
+                self.prefix, module_name, parent_module=None, context=self, cpp=self.cpp)
+
+        return self.scope
+
+
+class CythonUtilityCode(Code.UtilityCodeBase):
+    """
+    Utility code written in the Cython language itself.
+
+    The @cname decorator can set the cname for a function, method of cdef class.
+    Functions decorated with @cname('c_func_name') get the given cname.
+
+    For cdef classes the rules are as follows:
+        obj struct      -> <cname>_obj
+        obj type ptr    -> <cname>_type
+        methods         -> <class_cname>_<method_cname>
+
+    For methods the cname decorator is optional, but without the decorator the
+    methods will not be prototyped. See Cython.Compiler.CythonScope and
+    tests/run/cythonscope.pyx for examples.
+    """
+
+    is_cython_utility = True
+
+    def __init__(self, impl, name="__pyxutil", prefix="", requires=None,
+                 file=None, from_scope=None, context=None, compiler_directives=None,
+                 outer_module_scope=None):
+        # 1) We need to delay the parsing/processing, so that all modules can be
+        #    imported without import loops
+        # 2) The same utility code object can be used for multiple source files;
+        #    while the generated node trees can be altered in the compilation of a
+        #    single file.
+        # Hence, delay any processing until later.
+        context_types = {}
+        if context is not None:
+            from .PyrexTypes import BaseType
+            for key, value in context.items():
+                if isinstance(value, BaseType):
+                    context[key] = key
+                    context_types[key] = value
+            impl = Code.sub_tempita(impl, context, file, name)
+        self.impl = impl
+        self.name = name
+        self.file = file
+        self.prefix = prefix
+        self.requires = requires or []
+        self.from_scope = from_scope
+        self.outer_module_scope = outer_module_scope
+        self.compiler_directives = compiler_directives
+        self.context_types = context_types
+
+    def __eq__(self, other):
+        if isinstance(other, CythonUtilityCode):
+            return self._equality_params() == other._equality_params()
+        else:
+            return False
+
+    def _equality_params(self):
+        outer_scope = self.outer_module_scope
+        while isinstance(outer_scope, NonManglingModuleScope):
+            outer_scope = outer_scope.outer_scope
+        return self.impl, outer_scope, self.compiler_directives
+
+    def __hash__(self):
+        return hash(self.impl)
+
+    def get_tree(self, entries_only=False, cython_scope=None):
+        from .AnalysedTreeTransforms import AutoTestDictTransform
+        # The AutoTestDictTransform creates the statement "__test__ = {}",
+        # which when copied into the main ModuleNode overwrites
+        # any __test__ in user code; not desired
+        excludes = [AutoTestDictTransform]
+
+        from . import Pipeline, ParseTreeTransforms
+        context = CythonUtilityCodeContext(
+            self.name, compiler_directives=self.compiler_directives,
+            cpp=cython_scope.is_cpp() if cython_scope else False)
+        context.prefix = self.prefix
+        context.cython_scope = cython_scope
+        #context = StringParseContext(self.name)
+        tree = parse_from_strings(
+            self.name, self.impl, context=context, allow_struct_enum_decorator=True)
+        pipeline = Pipeline.create_pipeline(context, 'pyx', exclude_classes=excludes)
+
+        if entries_only:
+            p = []
+            for t in pipeline:
+                p.append(t)
+                if isinstance(p, ParseTreeTransforms.AnalyseDeclarationsTransform):
+                    break
+
+            pipeline = p
+
+        transform = ParseTreeTransforms.CnameDirectivesTransform(context)
+        # InterpretCompilerDirectives already does a cdef declarator check
+        #before = ParseTreeTransforms.DecoratorTransform
+        before = ParseTreeTransforms.InterpretCompilerDirectives
+        pipeline = Pipeline.insert_into_pipeline(pipeline, transform,
+                                                 before=before)
+
+        def merge_scope(scope):
+            def merge_scope_transform(module_node):
+                module_node.scope.merge_in(scope)
+                return module_node
+            return merge_scope_transform
+
+        if self.from_scope:
+            pipeline = Pipeline.insert_into_pipeline(
+                pipeline, merge_scope(self.from_scope),
+                before=ParseTreeTransforms.AnalyseDeclarationsTransform)
+
+        for dep in self.requires:
+            if isinstance(dep, CythonUtilityCode) and hasattr(dep, 'tree') and not cython_scope:
+                pipeline = Pipeline.insert_into_pipeline(
+                    pipeline, merge_scope(dep.tree.scope),
+                    before=ParseTreeTransforms.AnalyseDeclarationsTransform)
+
+        if self.outer_module_scope:
+            # inject outer module between utility code module and builtin module
+            def scope_transform(module_node):
+                module_node.scope.outer_scope = self.outer_module_scope
+                return module_node
+
+            pipeline = Pipeline.insert_into_pipeline(
+                pipeline, scope_transform,
+                before=ParseTreeTransforms.AnalyseDeclarationsTransform)
+
+        if self.context_types:
+            # inject types into module scope
+            def scope_transform(module_node):
+                for name, type in self.context_types.items():
+                    entry = module_node.scope.declare_type(name, type, None, visibility='extern')
+                    entry.in_cinclude = True
+                return module_node
+
+            pipeline = Pipeline.insert_into_pipeline(
+                pipeline, scope_transform,
+                before=ParseTreeTransforms.AnalyseDeclarationsTransform)
+
+        (err, tree) = Pipeline.run_pipeline(pipeline, tree, printtree=False)
+        assert not err, err
+        self.tree = tree
+        return tree
+
+    def put_code(self, output):
+        pass
+
+    @classmethod
+    def load_as_string(cls, util_code_name, from_file=None, **kwargs):
+        """
+        Load a utility code as a string. Returns (proto, implementation)
+        """
+        util = cls.load(util_code_name, from_file, **kwargs)
+        return util.proto, util.impl # keep line numbers => no lstrip()
+
+    def declare_in_scope(self, dest_scope, used=False, cython_scope=None,
+                         whitelist=None):
+        """
+        Declare all entries from the utility code in dest_scope. Code will only
+        be included for used entries. If module_name is given, declare the
+        type entries with that name.
+        """
+        tree = self.get_tree(entries_only=True, cython_scope=cython_scope)
+
+        entries = tree.scope.entries
+        entries.pop('__name__')
+        entries.pop('__file__')
+        entries.pop('__builtins__')
+        entries.pop('__doc__')
+
+        for entry in entries.values():
+            entry.utility_code_definition = self
+            entry.used = used
+
+        original_scope = tree.scope
+        dest_scope.merge_in(original_scope, merge_unused=True, whitelist=whitelist)
+        tree.scope = dest_scope
+
+        for dep in self.requires:
+            if dep.is_cython_utility:
+                dep.declare_in_scope(dest_scope, cython_scope=cython_scope)
+
+        return original_scope
+
+
+def declare_declarations_in_scope(declaration_string, env, private_type=True,
+                                  *args, **kwargs):
+    """
+    Declare some declarations given as Cython code in declaration_string
+    in scope env.
+    """
+    CythonUtilityCode(declaration_string, *args, **kwargs).declare_in_scope(env)

kivy_venv/lib/python3.11/site-packages/Cython/Compiler/Version.py

@@ -0,0 +1,9 @@
+# for backwards compatibility
+
+from __future__ import absolute_import
+
+from .. import __version__ as version
+
+# For 'generated by' header line in C files.
+
+watermark = str(version)