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by jepler
627 days ago
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since this is a 'walled site, you can just have a read of the official release notes and then the related PEPs ... https://docs.python.org/3.13/whatsnew/3.13.html New typing features: * PEP 696: Type parameters (typing.TypeVar, typing.ParamSpec, and typing.TypeVarTuple) now support defaults. * PEP 702: The new warnings.deprecated() decorator adds support
for marking deprecations in the type system and at runtime. * PEP 705: typing.ReadOnly can be used to mark an item of a typing.TypedDict as read-only for type checkers. * PEP 742: typing.TypeIs provides more intuitive type narrowing behavior, as an alternative to typing.TypeGuard. Personally the ability for the type checker to note calls to deprecated functions in a signature-dependent way looks useful. I'm sure the others will be useful too. |
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