Python 3.11.4 and Qt.KeyboardModifier bug

[John Ehresman]

~Qt.KeyboardModifier.AltModifier raises an exception when using Python 3.11.4 and PyQt6.5. The exception is as follows --

Python 3.11.4 (tags/v3.11.4:d2340ef, Jun  7 2023, 05:45:37) [MSC v.1934 64 bit (AMD64)] on win32
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>>> from PyQt6.QtCore import Qt
>>> ~Qt.KeyboardModifier.AltModifier
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python311\Lib\enum.py", line 1542, in __invert__
    self._inverted_ = self.__class__(self._flag_mask_ ^ self._value_)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\enum.py", line 711, in __call__
    return cls.__new__(cls, value)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\enum.py", line 1136, in __new__
    raise exc
  File "C:\Python311\Lib\enum.py", line 1113, in __new__
    result = cls._missing_(value)
             ^^^^^^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\enum.py", line 1454, in _missing_
    raise ValueError('%r: no members with value %r' % (cls, unknown))
ValueError: <flag 'KeyboardModifier'>: no members with value 2147483648

I happened to test Python 3.11.2 with PyQt6.5 and it works there. The exception might be due to Qt.KeyboardModifier.KeyboardModifierMask including bits that aren’t assigned a name, but I’m not sure.

Thanks,

John