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Explain that GenericAlias instances are not considered to be a class #1993

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AbduazizZiyodov
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I added new explanations to the part of the document that relates to that issue (after explanation of "type erasure").

Related issue: python/cpython#132467

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python-cla-bot bot commented May 6, 2025

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@JelleZijlstra
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I don't think this belongs in the typing spec since it's about runtime behavior.

@erictraut
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I agree with Jelle that this doesn't belong in the typing spec. We've intentionally avoided documenting runtime implementation details in the typing spec.

@AbduazizZiyodov
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@JelleZijlstra @erictraut

Got you, thanks.

This part of the document(from typing docs) was "quoted" in the issue, I though that I should updated that part. Now I need to find out where I should document that behaviour in python docs.

If you have any suggestions, let me know, appreciated )

@JelleZijlstra
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This could be added to https://docs.python.org/3.14/library/stdtypes.html#generic-alias-type

@AbduazizZiyodov AbduazizZiyodov deleted the docs-genericalias-isclass branch May 6, 2025 14:25
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3 participants