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kivy_venv/lib/python3.11/site-packages/virtualenv/activation/python/__init__.py

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+from __future__ import annotations
+
+import os
+from collections import OrderedDict
+
+from virtualenv.activation.via_template import ViaTemplateActivator
+
+
+class PythonActivator(ViaTemplateActivator):
+    def templates(self):
+        yield "activate_this.py"
+
+    def replacements(self, creator, dest_folder):
+        replacements = super().replacements(creator, dest_folder)
+        lib_folders = OrderedDict((os.path.relpath(str(i), str(dest_folder)), None) for i in creator.libs)
+        lib_folders = os.pathsep.join(lib_folders.keys()).replace("\\", "\\\\")  # escape Windows path characters
+        replacements.update(
+            {
+                "__LIB_FOLDERS__": lib_folders,
+                "__DECODE_PATH__": "",
+            },
+        )
+        return replacements
+
+
+__all__ = [
+    "PythonActivator",
+]

kivy_venv/lib/python3.11/site-packages/virtualenv/activation/python/activate_this.py

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+"""
+Activate virtualenv for current interpreter:
+
+import runpy
+runpy.run_path(this_file)
+
+This can be used when you must use an existing Python interpreter, not the virtualenv bin/python.
+"""  # noqa: D415
+
+from __future__ import annotations
+
+import os
+import site
+import sys
+
+try:
+    abs_file = os.path.abspath(__file__)
+except NameError as exc:
+    msg = "You must use import runpy; runpy.run_path(this_file)"
+    raise AssertionError(msg) from exc
+
+bin_dir = os.path.dirname(abs_file)
+base = bin_dir[: -len("__BIN_NAME__") - 1]  # strip away the bin part from the __file__, plus the path separator
+
+# prepend bin to PATH (this file is inside the bin directory)
+os.environ["PATH"] = os.pathsep.join([bin_dir, *os.environ.get("PATH", "").split(os.pathsep)])
+os.environ["VIRTUAL_ENV"] = base  # virtual env is right above bin directory
+os.environ["VIRTUAL_ENV_PROMPT"] = "__VIRTUAL_PROMPT__" or os.path.basename(base)  # noqa: SIM222
+
+# add the virtual environments libraries to the host python import mechanism
+prev_length = len(sys.path)
+for lib in "__LIB_FOLDERS__".split(os.pathsep):
+    path = os.path.realpath(os.path.join(bin_dir, lib))
+    site.addsitedir(path.decode("utf-8") if "__DECODE_PATH__" else path)
+sys.path[:] = sys.path[prev_length:] + sys.path[0:prev_length]
+
+sys.real_prefix = sys.prefix
+sys.prefix = base