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Title: [spec] Document `NotImplemented` special casing? · Issue #2109 · python/typing · GitHub

Open Graph Title: [spec] Document `NotImplemented` special casing? · Issue #2109 · python/typing

X Title: [spec] Document `NotImplemented` special casing? · Issue #2109 · python/typing

Description: Type checkers and typeshed special case NotImplemented to be treated as Any, this appears to be not documented in the spec currently. A small paragraph should probably go here: https://typing.python.org/en/latest/spec/special-types.html

Open Graph Description: Type checkers and typeshed special case NotImplemented to be treated as Any, this appears to be not documented in the spec currently. A small paragraph should probably go here: https://typing.pytho...

X Description: Type checkers and typeshed special case NotImplemented to be treated as Any, this appears to be not documented in the spec currently. A small paragraph should probably go here: https://typing.pytho...

Opengraph URL: https://github.com/python/typing/issues/2109

X: @github

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Hey, it has json ld scripts: 
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[spec] Document NotImplemented special casing?https://patch-diff.githubusercontent.com/python/typing/issues/2109#top
topic: typing specFor improving the typing spechttps://github.com/python/typing/issues?q=state%3Aopen%20label%3A%22topic%3A%20typing%20spec%22
https://github.com/randolf-scholz
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randolf-scholzhttps://github.com/randolf-scholz
on Nov 2, 2025https://github.com/python/typing/issues/2109#issue-3579372034
appears to be not documentedhttps://typing.python.org/en/latest/search.html?q=NotImplemented
https://typing.python.org/en/latest/spec/special-types.htmlhttps://typing.python.org/en/latest/spec/special-types.html
topic: typing specFor improving the typing spechttps://github.com/python/typing/issues?q=state%3Aopen%20label%3A%22topic%3A%20typing%20spec%22
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