Sync typeshed #20415
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Sync typeshed #20415
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Source commit: python/typeshed@2f3c3b7
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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Primer is python/typeshed#15085 |
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Diff from mypy_primer, showing the effect of this PR on open source code: starlette (https://github.com/encode/starlette)
+ tests/test_datastructures.py:171: error: No overload variant of "get" of "Mapping" matches argument types "str", "None" [call-overload]
+ tests/test_datastructures.py:171: note: Possible overload variants:
+ tests/test_datastructures.py:171: note: def get(self, str, /) -> str | None
+ tests/test_datastructures.py:171: note: def get(self, str, str, /) -> str
+ tests/test_datastructures.py:171: note: def [_T] get(self, str, _T, /) -> str | _T
+ tests/test_datastructures.py:287: error: No overload variant of "get" of "Mapping" matches argument types "str", "None" [call-overload]
+ tests/test_datastructures.py:287: note: Possible overload variants:
+ tests/test_datastructures.py:287: note: def get(self, str, /) -> str | None
+ tests/test_datastructures.py:287: note: def get(self, str, str, /) -> str
+ tests/test_datastructures.py:287: note: def [_T] get(self, str, _T, /) -> str | _T
+ tests/test_datastructures.py:371: error: No overload variant of "get" of "Mapping" matches argument types "str", "None" [call-overload]
+ tests/test_datastructures.py:371: note: Possible overload variants:
+ tests/test_datastructures.py:371: note: def get(self, str, /) -> UploadFile | str | None
+ tests/test_datastructures.py:371: note: def get(self, str, UploadFile | str, /) -> UploadFile | str
+ tests/test_datastructures.py:371: note: def [_T] get(self, str, _T, /) -> UploadFile | str | _T
+ tests/test_datastructures.py:406: error: No overload variant of "get" of "Mapping" matches argument types "str", "None" [call-overload]
+ tests/test_datastructures.py:406: note: Possible overload variants:
+ tests/test_datastructures.py:406: note: def get(self, Any, /) -> Any | None
+ tests/test_datastructures.py:406: note: def get(self, Any, Any, /) -> Any
+ tests/test_datastructures.py:406: note: def [_T] get(self, Any, _T, /) -> Any | _T
scrapy (https://github.com/scrapy/scrapy)
+ scrapy/cmdline.py:29: error: Return type "tuple[Action | None, str, str | None] | None" of "_parse_optional" incompatible with return type "list[tuple[Action | None, str, str | None, str | None]] | None" in supertype "argparse.ArgumentParser" [override]
+ scrapy/cmdline.py:37: error: Incompatible return value type (got "list[tuple[Action | None, str, str | None, str | None]] | None", expected "tuple[Action | None, str, str | None] | None") [return-value]
operator (https://github.com/canonical/operator)
- ops/model.py:1016: note: def get(self, str, /, default: Binding) -> Binding
+ ops/model.py:1016: note: def get(self, str, Binding, /) -> Binding
- ops/model.py:1016: note: def [_T] get(self, str, /, default: _T) -> Binding | _T
+ ops/model.py:1016: note: def [_T] get(self, str, _T, /) -> Binding | _T
steam.py (https://github.com/Gobot1234/steam.py)
- steam/ext/commands/utils.py:43: note: def get(self, str, /, default: _VT) -> _VT
+ steam/ext/commands/utils.py:43: note: def get(self, str, _VT, /) -> _VT
- steam/ext/commands/utils.py:43: note: def [_T] get(self, str, /, default: _T) -> _VT | _T
+ steam/ext/commands/utils.py:43: note: def [_T] get(self, str, _T, /) -> _VT | _T
- steam/ext/commands/utils.py:52: note: def pop(self, str, /, default: _VT) -> _VT
+ steam/ext/commands/utils.py:52: note: def pop(self, str, _VT, /) -> _VT
- steam/ext/commands/utils.py:52: note: def [_T] pop(self, str, /, default: _T) -> _VT | _T
+ steam/ext/commands/utils.py:52: note: def [_T] pop(self, str, _T, /) -> _VT | _T
discord.py (https://github.com/Rapptz/discord.py)
- ...venv/lib/python3.14/site-packages/mypy/typeshed/stdlib/typing.pyi:1041: note: "update" of "TypedDict" defined here
+ ...venv/lib/python3.14/site-packages/mypy/typeshed/stdlib/typing.pyi:1046: note: "update" of "TypedDict" defined here
pyodide (https://github.com/pyodide/pyodide)
- pyodide-build/pyodide_build/xbuildenv_releases.py:220: note: def get(self, str, /, default: str) -> str
+ pyodide-build/pyodide_build/xbuildenv_releases.py:220: note: def get(self, str, str, /) -> str
- pyodide-build/pyodide_build/xbuildenv_releases.py:220: note: def [_T] get(self, str, /, default: _T) -> str | _T
+ pyodide-build/pyodide_build/xbuildenv_releases.py:220: note: def [_T] get(self, str, _T, /) -> str | _T
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Sync typeshed
Source commit:
python/typeshed@2f3c3b7
Note that you will need to close and re-open the PR in order to trigger CI.