Mark inspect.getmembers as Optional for both Py2 and Py3 #2172
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yedpodtrzitko
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Description
Looking at the code of
getmembersinLib/inspect.py(https://github.com/python/cpython/blob/master/Lib/inspect.py#L316) it really likepredicatecould beNonesometime, especially since the default value isNone.And we seems to check even for this possibility at https://github.com/python/cpython/blob/master/Lib/inspect.py#L354
Proposition
Change the type assertion from
Callable[[Any], bool]toOptional[Callable[[Any], bool]]both for Python 2 and Python 3 for every versions.