Add stubs for importlib.(resources.)simple
#10931
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| # On py311+, things are actually defined in importlib.resources.readers, | ||
| # and re-exported here, | ||
| # but doing it this way leads to less code duplication for us | ||
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Not a matter for this PR, but at runtime (at least on main) this file re-exports code from importlib.resources.readers, so ideally we should do the same in our stub.
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Yeah, see the comments on lines 1-3 of this file :)
| def open(self, *args: Never, **kwargs: Never) -> NoReturn: ... # type: ignore[override] | ||
| def joinpath(self, *descendants: str) -> Traversable: ... | ||
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| class TraversableReader(TraversableResources, SimpleReader, metaclass=abc.ABCMeta): |
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Why do we need the metaclass? Doesn't seem to exist at runtime.
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It inherits from a class that has abstract methods, but does not implement those abstract methods, meaning it is still abstract. Because it's really easy to do that accidentally in a stub, mypy has an undocumented feature that says you have to explicitly redeclare the metaclass if that's really what you want: https://github.com/python/mypy/blob/9011ca8b4dedc0e7177737b5265f69694afa91b5/mypy/semanal_classprop.py#L94
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Oh yes, I implemented that feature :)
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Aha, I see pre-commit is now doing the same thing to me here that it's doing to @hamdanal in #10721 🙃 See #10939 (review) for explanation... |
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉 |
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And do some minor cleanup of
importlib.(resources.)readersfollowing 1c184fe