[3.10] bpo-46539: Pass status of special typeforms to forward references (GH-30926) #30947
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…thonGH-30926) Previously this didn't matter because there weren't any valid code paths that could trigger a type check with a special form, but after the bug fix for `Annotated` wrapping special forms it's now possible to annotate something like `Annotated['ClassVar[int]', (3, 4)]`. This change would also be needed for proposed future changes, such as allowing `ClassVar` and `Final` to nest each other in dataclasses. (cherry picked from commit ced5005) Co-authored-by: Gregory Beauregard <greg@greg.red>
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@GBeauregard and @gvanrossum: Status check is done, and it's a success ✅ . |
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@GBeauregard and @gvanrossum: Status check is done, and it's a success ✅ . |
JelleZijlstra
approved these changes
Jan 27, 2022
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@GBeauregard and @gvanrossum: Status check is done, and it's a success ✅ . |
gvanrossum
approved these changes
Jan 27, 2022
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Previously this didn't matter because there weren't any valid code paths
that could trigger a type check with a special form, but after the bug
fix for
Annotatedwrapping special forms it's now possible to annotatesomething like
Annotated['ClassVar[int]', (3, 4)]. This change wouldalso be needed for proposed future changes, such as allowing
ClassVarand
Finalto nest each other in dataclasses.(cherry picked from commit ced5005)
Co-authored-by: Gregory Beauregard greg@greg.red
https://bugs.python.org/issue46539