Sync typeshed #18248
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Sync typeshed #18248
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Source commit: python/typeshed@633a4d7
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: python#13987 (comment) A manual cherry-pick of e437cdf.
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Diff from mypy_primer, showing the effect of this PR on open source code: sphinx (https://github.com/sphinx-doc/sphinx)
+ sphinx/ext/autodoc/importer.py: note: In function "import_object":
+ sphinx/ext/autodoc/importer.py:182:25: error: Cannot assign to final name "TYPE_CHECKING" [misc]
+ sphinx/ext/autodoc/importer.py:188:25: error: Cannot assign to final name "TYPE_CHECKING" [misc]
pip (https://github.com/pypa/pip)
+ src/pip/_internal/utils/unpacking.py:179: note: def open(name: str | bytes | PathLike[str] | PathLike[bytes] | Buffer | None = ..., *, mode: Literal['r|*', 'r|', 'r|gz', 'r|bz2', 'r|xz'], fileobj: IO[bytes] | None = ..., bufsize: int = ..., format: int | None = ..., tarinfo: type[TarInfo] | None = ..., dereference: bool | None = ..., ignore_zeros: bool | None = ..., encoding: str | None = ..., errors: str = ..., pax_headers: Mapping[str, str] | None = ..., debug: int | None = ..., errorlevel: int | None = ..., preset: int | None = ...) -> TarFile
- src/pip/_internal/utils/unpacking.py:179: note: def open(name: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., *, mode: str, fileobj: IO[bytes] | None = ..., bufsize: int = ..., format: int | None = ..., tarinfo: type[TarInfo] | None = ..., dereference: bool | None = ..., ignore_zeros: bool | None = ..., encoding: str | None = ..., errors: str = ..., pax_headers: Mapping[str, str] | None = ..., debug: int | None = ..., errorlevel: int | None = ..., preset: int | None = ...) -> TarFile
+ src/pip/_internal/utils/unpacking.py:179: note: def open(name: str | bytes | PathLike[str] | PathLike[bytes] | Buffer | None = ..., *, mode: Literal['w|', 'w|gz', 'w|bz2', 'w|xz'], fileobj: IO[bytes] | None = ..., bufsize: int = ..., format: int | None = ..., tarinfo: type[TarInfo] | None = ..., dereference: bool | None = ..., ignore_zeros: bool | None = ..., encoding: str | None = ..., errors: str = ..., pax_headers: Mapping[str, str] | None = ..., debug: int | None = ..., errorlevel: int | None = ..., preset: int | None = ...) -> TarFile
django-stubs (https://github.com/typeddjango/django-stubs)
+ django-stubs/core/serializers/xml_serializer.pyi:2: error: Unused "type: ignore" comment [unused-ignore]
vision (https://github.com/pytorch/vision)
+ torchvision/datasets/utils.py:215: note: def open(name: str | bytes | PathLike[str] | PathLike[bytes] | Buffer | None = ..., *, mode: Literal['r|*', 'r|', 'r|gz', 'r|bz2', 'r|xz'], fileobj: IO[bytes] | None = ..., bufsize: int = ..., format: int | None = ..., tarinfo: type[TarInfo] | None = ..., dereference: bool | None = ..., ignore_zeros: bool | None = ..., encoding: str | None = ..., errors: str = ..., pax_headers: Mapping[str, str] | None = ..., debug: int | None = ..., errorlevel: int | None = ..., preset: int | None = ...) -> TarFile
- torchvision/datasets/utils.py:215: note: def open(name: str | bytes | PathLike[str] | PathLike[bytes] | None = ..., *, mode: str, fileobj: IO[bytes] | None = ..., bufsize: int = ..., format: int | None = ..., tarinfo: type[TarInfo] | None = ..., dereference: bool | None = ..., ignore_zeros: bool | None = ..., encoding: str | None = ..., errors: str = ..., pax_headers: Mapping[str, str] | None = ..., debug: int | None = ..., errorlevel: int | None = ..., preset: int | None = ...) -> TarFile
+ torchvision/datasets/utils.py:215: note: def open(name: str | bytes | PathLike[str] | PathLike[bytes] | Buffer | None = ..., *, mode: Literal['w|', 'w|gz', 'w|bz2', 'w|xz'], fileobj: IO[bytes] | None = ..., bufsize: int = ..., format: int | None = ..., tarinfo: type[TarInfo] | None = ..., dereference: bool | None = ..., ignore_zeros: bool | None = ..., encoding: str | None = ..., errors: str = ..., pax_headers: Mapping[str, str] | None = ..., debug: int | None = ..., errorlevel: int | None = ..., preset: int | None = ...) -> TarFile
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Source commit:
python/typeshed@633a4d7