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Title: (馃悶) generics not resolving correctly when multiple `TypeVar`s don't meet the expected type 路 Issue #17553 路 python/mypy 路 GitHub

Open Graph Title: (馃悶) generics not resolving correctly when multiple `TypeVar`s don't meet the expected type 路 Issue #17553 路 python/mypy

X Title: (馃悶) generics not resolving correctly when multiple `TypeVar`s don't meet the expected type 路 Issue #17553 路 python/mypy

Description: from typing import TypeVar T1 = TypeVar("T1") T2 = TypeVar("T2") def f(t1: T1, t2: T2) -> T1 | T2: return t1 a: int = f(1, None) or 1 # error: Argument 2 to "f" has incompatible type "None"; expected "int" [arg-type] def f1(t1: T1, t2: T...

Open Graph Description: from typing import TypeVar T1 = TypeVar("T1") T2 = TypeVar("T2") def f(t1: T1, t2: T2) -> T1 | T2: return t1 a: int = f(1, None) or 1 # error: Argument 2 to "f" has incompatible type "None"; expect...

X Description: from typing import TypeVar T1 = TypeVar("T1") T2 = TypeVar("T2") def f(t1: T1, t2: T2) -> T1 | T2: return t1 a: int = f(1, None) or 1 # error: Argument 2 to "f" has...

Opengraph URL: https://github.com/python/mypy/issues/17553

X: @github

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Domain: github.com


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(馃悶) generics not resolving correctly when multiple TypeVars don't meet the expected typehttps://github.com/python/mypy/issues/17553#top
#18976https://github.com/python/mypy/pull/18976
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on Jul 22, 2024https://github.com/python/mypy/issues/17553#issue-2421708091
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