[sre_compile] Use TypeGuard for isstring #15250
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉 |
srittau
approved these changes
Jan 10, 2026
| @overload | ||
| def isstring(obj: str | bytes) -> Literal[True]: ... | ||
| @overload | ||
| def isstring(obj: object) -> TypeGuard[str | bytes]: ... |
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Source: https://github.com/python/cpython/blob/aa8578dc54df2af9daa3353566359e602e5905cf/Lib/re/_compiler.py#L587