Sync typeshed #17988
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Sync typeshed #17988
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Source commit: python/typeshed@559ae97
This is allegedly causing large performance problems, see 13821 typeshed/8231 had zero hits on mypy_primer, so it's not the worst thing to undo. Patching this in typeshed also feels weird, since there's a more general soundness issue. If a typevar has a bound or constraint, we might not want to solve it to a Literal. If we can confirm the performance regression or fix the unsoundness within mypy, I might pursue upstreaming this in typeshed. (Reminder: add this to the sync_typeshed script once merged)
… checking: #13987 (comment) A manual cherry-pick of e437cdf.
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Syncing to pull in python/typeshed#12837 . If I cherry pick it to a release branch, I'd want to make sure master isn't still in the regressed state |
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Diff from mypy_primer, showing the effect of this PR on open source code: setuptools (https://github.com/pypa/setuptools)
- pkg_resources/__init__.py:2651: error: Value of type variable "AnyStr" of "abspath" cannot be "Sequence[object]" [type-var]
pandas-stubs (https://github.com/pandas-dev/pandas-stubs)
+ pandas-stubs/core/frame.pyi:608: error: Overloaded function signatures 2 and 3 overlap with incompatible return types [overload-overlap]
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Sync typeshed
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python/typeshed@559ae97
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