v0.0.31

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Released on 2026-04-15.

Bug fixes

• Avoid panic from double inference for namedtuple(typename=T, field_names=x, **{}) (#​24641)
• Avoid panic from double inference with missing functional Enum(...) names (#​24638)
• Avoid panic from double inference with functional Enum(value=...) (#​24639)
• Fix cases where invalid-key fix doesn't converge, and override-of-final-method produces invalid syntax (#​24649)
• Fix unnecessary ty:ignore comments inserted by --add-ignore for diagnostics starting on the same line (#​24651)

CLI

• Add --fix mode to enable auto-fix for diagnostics (#​24097)

Performance

• Avoid excessive memory usage for dataclasses with many fields (#​24620)

Core type checking

• Check inherited NamedTuple field conflicts (#​24542)
• Error when duplicate keywords are provided to TypedDict constructors (#​24449)
• Respect mixed positional and keyword arguments in TypedDict constructor (#​24448)
• Respect subclass shadowing for inherited NamedTuple fields (#​24640)
• Skip EnumMeta.__call__ for enum constructor signatures (#​24513)

Contributors

• @​sharkdp
• @​Glyphack
• @​MichaReiser
• @​charliermarsh