ValueError：“键'u'未映射到任何已知键。在 mac 上使用键盘模块时，我会遇到这种情况

问：

所以我正在制作一个 python 脚本，当按下某个键时它会切换录制/播放，所以为了监听这些键，我使用键盘模块来监听它，但是当我运行我的脚本时，它不起作用。法典

Exception in thread Thread-1 (listen):
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/threading.py", line 1038, in _bootstrap_inner
Traceback (most recent call last):
  File "/Users/*****/Desktop/test.py", line 36, in <module>
    if keyboard.is_pressed('u'):
       ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/keyboard/__init__.py", line 417, in is_pressed
    steps = parse_hotkey(hotkey)
            ^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/keyboard/__init__.py", line 344, in parse_hotkey
    scan_codes = key_to_scan_codes(hotkey)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/keyboard/__init__.py", line 324, in key_to_scan_codes
    raise ValueError('Key {} is not mapped to any known key.'.format(repr(key)), e)
    self.run()
ValueError: ("Key 'u' is not mapped to any known key.", ValueError('Unrecognized character: u'))
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/threading.py", line 975, in run

我期望我的脚本在我按下“u”或“p”键时触发事件。然而，相反，我得到了一长串错误。