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Title: Extend special case for context-based typevar inference to typevar unions in return position by sterliakov · Pull Request #18976 · python/mypy · GitHub

Open Graph Title: Extend special case for context-based typevar inference to typevar unions in return position by sterliakov · Pull Request #18976 · python/mypy

X Title: Extend special case for context-based typevar inference to typevar unions in return position by sterliakov · Pull Request #18976 · python/mypy

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

Open Graph Description: Fixes wrongly reported typing error in min with key lambda function and default value when result is Optional #17221. Fixes [arg-type] wrong argument type in generic function with union #17654. Fix...

X Description: Fixes wrongly reported typing error in min with key lambda function and default value when result is Optional #17221. Fixes [arg-type] wrong argument type in generic function with union #17654. Fix...

Opengraph URL: https://github.com/python/mypy/pull/18976

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Extend special case for context-based typevar inference to typevar unions in return positionhttps://github.com/python/mypy/pull/18976/commits#top
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Extend special-case for context-based typevar inference in return position to typevar unionshttps://github.com/python/mypy/pull/18976/commits/c4baf4ed23b0648198f6e3e32a3d591d850d081c
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Fix a regression with `mapping.get(key, default_singleton)`https://github.com/python/mypy/pull/18976/commits/7fcae0f3ed168eb8044bfb58d6276ebd3b82e385
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Switch to detecting *any* typevar in union in return position - `T | str` is no less problematichttps://github.com/python/mypy/pull/18976/commits/43c097c4e8ee7889ba256a0d161368cc0cf6ab61
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Revert attempt to fix Mapping.gethttps://github.com/python/mypy/pull/18976/commits/e3771159078378eb1a2cfc047c959305e0ef40d9
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Revert to `all()` - inferring for unions of typevar and something seem to be helpfulhttps://github.com/python/mypy/pull/18976/commits/3f04d8ee0ad7807867ea952036930d65165df5e2
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Merge branch 'master' into bugfix/gh-17221-typevar-union-contexthttps://github.com/python/mypy/pull/18976/commits/01cbfbcf89cd9d7de5a853bfe13c2cc5138edf08
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Remove xfail test - fixed in previous PRhttps://github.com/python/mypy/pull/18976/commits/f1e4dfc60f60ecd64d073dcc519939d5fea023e7
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Merge branch 'master' into bugfix/gh-17221-typevar-union-contexthttps://github.com/python/mypy/pull/18976/commits/8b5d1404487270017097721226856204ddbae779
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