Fix type hint of format parameter in typing.get_type_hints()
#15268
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Contributor
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉 |
srittau
approved these changes
Jan 12, 2026
Collaborator
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This needs stubtest allowlist entries. |
Member
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I'd prefer to keep None because that's the actual runtime default, regardless of the motivation. |
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The runtime definition only has a default of
Noneto lazily importannotationlib: https://github.com/python/cpython/blob/66e1399311c17684c6e26f5d9d9603fbd0717d0d/Lib/typing.py#L2365-L2367.While providing
Noneexplicitly is technically valid, it's best to have the value present in the stub so that users can easily know the default value.