Traceback (most recent call last):
  File "/build/webbrowser-app/staging/tests/autopilot/webbrowser_app/tests/test_fullscreen.py", line 70, in test_user_exit_ESC
    self.main_window.press_key('Escape')
  File "/build/webbrowser-app/staging/tests/autopilot/webbrowser_app/emulators/browser.py", line 192, in press_key
    self.keyboard.press_and_release(key)
  File "/usr/lib/python3/dist-packages/autopilot/input/_uinput.py", line 181, in press_and_release
    self.press(keys, delay)
  File "/usr/lib/python3/dist-packages/autopilot/input/_uinput.py", line 138, in press
    self._device.press(key_button)
  File "/usr/lib/python3/dist-packages/autopilot/input/_uinput.py", line 56, in press
    ecode = self._get_ecode_for_key(key)
  File "/usr/lib/python3/dist-packages/autopilot/input/_uinput.py", line 66, in _get_ecode_for_key
    raise ValueError('Unknown key name: %s.' % key)
ValueError: Unknown key name: Escape.