pygame key code issue

I have a crashed problem with the MASTER branch when start the cardwirth.py .

The error trace is the same as this issue:

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Then I found that, in my enviroment (Windows 7), the pygame’s(or SDL2) key code is too big than normal:

>>> hex(pygame.K_LCTRL)
'0x400000e0'

>>> hex(pygame.key.key_code('left ctrl'))
'0x400000e0'

This key code is come from:

Returned by SDL_GetKeyFromName.

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I don’t know why the key code is so big, but I work around the problem in cw/eventrelay.py class KeyEventRelay .

I make a new method of the class KeyEventRelay :

def local_keycode(self, sdl_keycode: int):
    return 0xffff & sdl_keycode

And then, call it in every other methods like this:

def keydown(self, keycode: int) -> None:
    keycode = self.local_keycode(keycode)
    key = self.keymap.get(keycode, None)

        ...

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After all of that, I finally succeeded in running the game。

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