Sync typeshed #16665
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Sync typeshed #16665
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Source commit: python/typeshed@b6740d0
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)
Since the plugin provides superior type checking: #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: pip (https://github.com/pypa/pip)
+ src/pip/_internal/metadata/_json.py:82: error: Incompatible types in assignment (expression has type "Message | Any | str | list[Message | str]", target has type "str | list[str]") [assignment]
websockets (https://github.com/aaugustin/websockets)
+ src/websockets/legacy/async_timeout.py:239: error: Argument 1 to "call_soon" of "AbstractEventLoop" has incompatible type "Callable[[Task[None]], None]"; expected "Callable[[Task[Any] | None], object]" [arg-type]
+ src/websockets/legacy/async_timeout.py:241: error: Argument 2 to "call_at" of "AbstractEventLoop" has incompatible type "Callable[[Task[None]], None]"; expected "Callable[[Task[Any] | None], object]" [arg-type]
tornado (https://github.com/tornadoweb/tornado)
+ tornado/platform/asyncio.py:705: error: Argument 3 of "add_reader" is incompatible with supertype "AbstractEventLoop"; supertype defines the argument type as "Unpack[_Ts]" [override]
+ tornado/platform/asyncio.py:705: note: This violates the Liskov substitution principle
+ tornado/platform/asyncio.py:705: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#incompatible-overrides
+ tornado/platform/asyncio.py:710: error: Argument 3 of "add_writer" is incompatible with supertype "AbstractEventLoop"; supertype defines the argument type as "Unpack[_Ts]" [override]
+ tornado/platform/asyncio.py:710: note: This violates the Liskov substitution principle
+ tornado/platform/asyncio.py:710: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#incompatible-overrides
graphql-core (https://github.com/graphql-python/graphql-core)
+ src/graphql/execution/execute.py:40: error: Unused "type: ignore" comment [unused-ignore]
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Sync typeshed
Source commit:
python/typeshed@b6740d0
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