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[PEP 695] Fix covariance of frozen dataclasses#17783
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Fix this conformance test:```@DataClass(frozen=True)class ShouldBeCovariant4[T]: x: Tvo4_1: ShouldBeCovariant4[float] = ShouldBeCovariant4[int](1) # OKvo4_2: ShouldBeCovariant4[int] = ShouldBeCovariant4[float](1) # E```Link:https://github.com/python/typing/blob/main/conformance/tests/generics_variance_inference.py#L66
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According tomypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅ |
svalentin approved these changesSep 18, 2024
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Fix this conformance test:
Link:
https://github.com/python/typing/blob/main/conformance/tests/generics_variance_inference.py#L66