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Title: Delay errors in semanal for proper unreachability information by A5rocks · Pull Request #20425 · python/mypy · GitHub

Open Graph Title: Delay errors in semanal for proper unreachability information by A5rocks · Pull Request #20425 · python/mypy

X Title: Delay errors in semanal for proper unreachability information by A5rocks · Pull Request #20425 · python/mypy

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

Open Graph Description: Fixes unexpected attr-defined error in imports in dead code #20408 Fixes Platform check is not remembered after return #14940 This is a draft PR because: it doesn't work with dmypy it's a...

X Description: Fixes unexpected attr-defined error in imports in dead code #20408 Fixes Platform check is not remembered after return #14940 This is a draft PR because: it doesn't work with dmypy it&...

Opengraph URL: https://github.com/python/mypy/pull/20425

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unexpected attr-defined error in imports in dead code #20408https://github.com/python/mypy/issues/20408
Platform check is not remembered after return #14940https://github.com/python/mypy/issues/14940
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Delay errors in semanal for proper unreachability informationhttps://github.com/python/mypy/pull/20425/commits/64ba2a4b727964921de7e5de2e4c0d33e0f97032
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December 17, 2025 16:53https://github.com/python/mypy/pull/20425#commits-pushed-edbd57b
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Only opt into delayed erors for the most important semanal pointshttps://github.com/python/mypy/pull/20425/commits/edbd57b3c05d95996ae929c00c335743824b2c69
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Opt out of unnecessary checks in checker.pyhttps://github.com/python/mypy/pull/20425/commits/806266c53875d8891cfeff412e75dafbd33faa30
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Make semanal's side fasterhttps://github.com/python/mypy/pull/20425/commits/1dd8690c5ff059f87691f6f7486cc1dad67c1021
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Try to fix spurious unreachability warningshttps://github.com/python/mypy/pull/20425/commits/ec6b98d43e914d327f7b81bff24d6f1eca2a6cdc
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Fix test failureshttps://github.com/python/mypy/pull/20425/commits/8267da1b078c122a20287a13a9ce586cf52355f3
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Start removing special cased assert Falsehttps://github.com/python/mypy/pull/20425/commits/6eba664fc9ef72cde66a8394b051288cbbe7fe68
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unexpected attr-defined error in imports in dead code https://github.com/python/mypy/issues/20408
Platform check is not remembered after return https://github.com/python/mypy/issues/14940
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