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Title: Improve narrowing with numeric types by hauntsaninja · Pull Request #20727 · python/mypy · GitHub

Open Graph Title: Improve narrowing with numeric types by hauntsaninja · Pull Request #20727 · python/mypy

X Title: Improve narrowing with numeric types by hauntsaninja · Pull Request #20727 · python/mypy

Description: I added tests for this change in #20709 so it's easier to see the diff. Like a few others, this was factored out of #20660 to make that one easier to land. The change in bytes narrowing is also desirable (but unfortunately only applies with --no-strict-bytes). We can figure out something else for that case, as discussed in #20704

Open Graph Description: I added tests for this change in #20709 so it's easier to see the diff. Like a few others, this was factored out of #20660 to make that one easier to land. The change in bytes narrowing is also...

X Description: I added tests for this change in #20709 so it's easier to see the diff. Like a few others, this was factored out of #20660 to make that one easier to land. The change in bytes narrowing is ...

Opengraph URL: https://github.com/python/mypy/pull/20727

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4ac3457 Improve narrowing with numeric types hauntsaninja Feb 3, 2026 https://github.com/python/mypy/pull/20727/commits/4ac345732f550e5ae443119b82149cfe9c93345b
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