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False negative: closed=False not allowed when subclassing from non-open TypedDict #10859

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False negative: closed=False not allowed when subclassing from non-open TypedDict#10859
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addressed in next versionIssue is fixed and will appear in next published versionbugSomething isn't workingspec compliance
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@erictraut
erictraut
opened on Aug 30, 2025

According to the subclassing rules introduced in PEP 728, when a class subclasses from a non-open TypedDict, it cannot use closed=False. Pyright doesn't currently flag this as an error condition.

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    addressed in next versionIssue is fixed and will appear in next published versionbugSomething isn't workingspec compliance

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