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Title: fix: isinstance narrowing regression with dynamic tuple argument by Bahtya · Pull Request #21190 · python/mypy · GitHub

Open Graph Title: fix: isinstance narrowing regression with dynamic tuple argument by Bahtya · Pull Request #21190 · python/mypy

X Title: fix: isinstance narrowing regression with dynamic tuple argument by Bahtya · Pull Request #21190 · python/mypy

Description: Optional static typing for Python. Contribute to python/mypy development by creating an account on GitHub.

Open Graph Description: Problem When isinstance is called with a dynamically-computed tuple of types (e.g. isinstance(exc, tuple(expected_excs))), mypy 1.20 incorrectly narrows the expression to object instead of keeping ...

X Description: Problem When isinstance is called with a dynamically-computed tuple of types (e.g. isinstance(exc, tuple(expected_excs))), mypy 1.20 incorrectly narrows the expression to object instead of keeping ...

Opengraph URL: https://github.com/python/mypy/pull/21190

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