test_kivy.py

import kivy

from kivy.app import App
from kivy.core.window import Window
from kivy.uix.widget import Widget


class MyKeyboardListener(Widget):
	def __init__(self, **kwargs):
		super(MyKeyboardListener, self).__init__(**kwargs)
		self._keyboard = Window.request_keyboard(
			self._keyboard_closed, self, 'text')
		if self._keyboard.widget:
			# If it exists, this widget is a VKeyboard object which you can use
			# to change the keyboard layout.
			pass
		self._keyboard.bind(on_key_down=self._on_keyboard_down)

	def _keyboard_closed(self):
		print('My keyboard have been closed!')
		self._keyboard.unbind(on_key_down=self._on_keyboard_down)
		self._keyboard = None

	def _on_keyboard_down(self, keyboard, keycode, text, modifiers):
		print('The key', keycode, 'have been pressed')
		print(' - text is %r' % text)
		print(' - modifiers are %r' % modifiers)

		# Keycode is composed of an integer + a string
		# If we hit escape, release the keyboard
		if keycode[1] == 'escape':
			keyboard.release()

		# Return True to accept the key. Otherwise, it will be used by
		# the system.
		return True


class MyPaintApp(App):
	def build(self):
		return MyKeyboardListener()


if __name__ == '__main__':
	MyPaintApp().run()