NameError: name 'COMPointer' is not defined. Did you mean: 'COMPointerMeta'?

[MAHTMATCIS]

Why did this issue occur after I downgraded pyglet to 1.5.29?

Traceback (most recent call last):
  File "***\Minecraft_pyglet\main.py", line 10, in <module>
    from pyglet.gl import *
  File "***\Python314\Lib\site-packages\pyglet\gl\__init__.py", line 219, in <module>
    from .win32 import Win32Config as Config
  File "***\Python314\Lib\site-packages\pyglet\gl\win32.py", line 36, in <module>
    from pyglet.canvas.win32 import Win32Canvas
  File "***\Python314\Lib\site-packages\pyglet\canvas\__init__.py", line 110, in <module>
    from pyglet.canvas.win32 import Win32Display as Display
  File "***\Python314\Lib\site-packages\pyglet\canvas\win32.py", line 3, in <module>
    from pyglet.libs.win32 import _user32
  File "***\Python314\Lib\site-packages\pyglet\libs\win32\__init__.py", line 41, in <module>
    from . import com
  File "***\Python314\Lib\site-packages\pyglet\libs\win32\com.py", line 240, in <module>
    class COMPointer(ctypes.c_void_p, metaclass=COMPointerMeta):
    ...<18 lines>...
                    raise TypeError("Interface {} doesn't have a pointer in this class.".format(cls.__name__))
  File "D:\Program Files\Python314\Lib\site-packages\pyglet\libs\win32\com.py", line 214, in __new__
    _pointer_type_cache[cls] = type(COMPointer)("POINTER({})".format(cls.__name__),
                                    ^^^^^^^^^^
NameError: name 'COMPointer' is not defined. Did you mean: 'COMPointerMeta'?

[SteveZhang08]

It look like just a bug in pyglet 1.5.29. I recommend that you try pyglet 1.5.27, this version can work.

[MAHTMATCIS]

so what environment did the author use ?. is the error caused by python3.14?

[SteveZhang08]

maybe you can try 3.8.1? i'm using it.

[SteveZhang08]

i can't determine whether this error is caused by Python 3.14 or if it's just a bug in pyglet 1.5.29, because i'm currently using Windows 7 so that i cannot test it on Python 3.14.

[SteveZhang08]

i think i found,
When running pyglet version 1.5.29 in a Python 3.14 environment, the program crashes during initialization with an error message showing NameError: name 'COMPointer' is not defined. The root cause of this issue lies in the improvements made to Python 3.13's type system and metaclass handling mechanisms, while the COM component implementation in pyglet version 1.5 relies on a specific metaclass COMPointerMeta to dynamically create pointer types. Specifically, the COMPointer class defined in pyglet/libs/win32/com.py uses COMPointerMeta as its metaclass. When the metaclass's __new__ method attempts to reference the COMPointer class, which has not yet been fully created, it results in a reference failure in Python 3.14.