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Author tinchester
Recipients gvanrossum, tinchester
Date 2020-11-12.12:04:08
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
For example, dict[int, int] cannot be used with singledispatch because types.GenericAlias doesn't support weak references.

I'm an author of a third party library ( for which this functionality would be useful.

Here's a similar issue in typing (note that this issue is for *types*.GenericAlias) that was fixed:
Date User Action Args
2020-11-12 12:04:09tinchestersetrecipients: + tinchester, gvanrossum
2020-11-12 12:04:09tinchestersetmessageid: <>
2020-11-12 12:04:09tinchesterlinkissue42332 messages
2020-11-12 12:04:08tinchestercreate