gh-144190: Clarify get_type_hints() instance behavior in docs#144831
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hugovk merged 1 commit intopython:mainfrom Feb 26, 2026
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gh-144190: Clarify get_type_hints() instance behavior in docs#144831hugovk merged 1 commit intopython:mainfrom
hugovk merged 1 commit intopython:mainfrom
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Thanks @iamrajhans for the PR, and @hugovk for merging it 🌮🎉.. I'm working now to backport this PR to: 3.14. |
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…ythonGH-144831) (cherry picked from commit e234662) Co-authored-by: Rajhans Jadhao <[email protected]>
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GH-145258 is a backport of this pull request to the 3.14 branch. |
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…H-144831) (#145258) Co-authored-by: Rajhans Jadhao <[email protected]>
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Summary
Document
typing.get_type_hints()behavior for instance objects in Python 3.14+.get_type_hints()is intended for modules, classes, and callables.get_type_hints()on instances is not supported.get_type_hints(type(obj))for instance use cases.versionchanged:: 3.14note explaining that instance support in earlier versions was undocumented behavior.Why
Issue #144190 reported a regression when calling
get_type_hints(self)in a dataclass__init__.Core-dev discussion confirmed this is intentional in 3.14 and should be documented.
Testing
Docs-only change; no runtime behavior changed.
get_type_hintsfails fordataclassin 3.14 #144190📚 Documentation preview 📚: https://cpython-previews--144831.org.readthedocs.build/