PathLike: change to Protocol #4447
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Hmm, discovered python/mypy#5775 |
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Also, the stubtest windows tests aren't doing anything (and I think this has been the case for a while, probably since they were moved to Github Actions) |
JelleZijlstra
requested changes
Aug 16, 2020
| class _PathLike(Generic[AnyStr]): | ||
| def __fspath__(self) -> AnyStr: ... | ||
| _AnyStr_co = TypeVar("_AnyStr_co", str, bytes, covariant=True) | ||
| class _PathLike(Protocol[_AnyStr_co]): |
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Should we put this in _typeshed?
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I'd prefer not to... even if it can be made to work, it'll involve a mypy-typeshed dance (and maybe changes to other type checkers) for little benefit.
Plus _typeshed is for making types internally reusable, and PathLike is already internally (and externally) reusable from os
hauntsaninja
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Sep 26, 2020
I made PathLike a protocol in python#4447, but it should also be runtime_checkable. Caught by mypy_primer: src/werkzeug/utils.py:646: error: Only @runtime_checkable protocols can be used with instance and class checks
JelleZijlstra
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that referenced
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Sep 27, 2020
I made PathLike a protocol in #4447, but it should also be runtime_checkable. Caught by mypy_primer: src/werkzeug/utils.py:646: error: Only @runtime_checkable protocols can be used with instance and class checks
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