from functools import partial
from kivy.core.window import Window
from kivy.app import App
from kivy.uix.label import Label


class TestApp(App):
    def build(self):
        Window.bind(
            on_key_down=partial(self.check_key, 'down'),
            on_keyboard=partial(self.check_key, 'keyboard'),
            on_key_up=partial(self.check_key, 'up'),
        )
        return Label(text='hello')

    def check_key(self, *args):
        print(*args)

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