[issue30247] Make importlib.machinery class handle os.PathLike path

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

I'm not sure it's a good idea. FileLoader, FileFinder, and other classes usually are a part of import machinery, they can have other restrictions on path type than general filesystem related functions. This change has a non-zero cost, it complicates the code and makes it slower. Do you have a use case for using these classes with a path different from None or str?

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nosy: +eric.snow, ncoghlan, serhiy.storchaka

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<http://bugs.python.org/issue30247>
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