[issue43901] Lazy-create an empty annotations dict in all unannotated user classes and modules

[Guido van Rossum]

Guido van Rossum <guido at python.org> added the comment:

I think "no user-visible changes" is a pipe dream. Deleting __annotations__ seems fairly pointless so I don't mind changes that are only visible when you do that.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43901>
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