[issue4260] ctypes.xFUNCTYPE are decorators.

[Kevin Watters]

Kevin Watters <kevinwatters at gmail.com> added the comment:

As far as I know, the above code will fail randomly in release mode if 
you have multiple threads running Python, because when ctypes calls out 
to CFUNCTYPE functions, it releases the GIL.

For decorating a python function to give to qsort, maybe you can use 
PYFUNCTYPE?

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nosy: +kevinwatters

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