''' Application example using build() + return ========================================== An application can be built if you return a widget on build(), or if you set self.root. ''' import kivy kivy.require('1.0.7') from kivy.app import App from kivy.uix.button import Button class TestApp(App): def build(self): # return a Button() as a root widget return Button(text='hello world') if __name__ == '__main__': TestApp().run()