Further typing upgrades for Python 3.9 #4135
Merged
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Note for next year: if you're not upgrading
shed
at the same time, you need to runFORMAT_ALL=true make format
to get all the files. So here's the remainder.Along with the syntax update, I've deleted some redundant tests for
typing_extensions.Annotated
, since that's simply a re-export of the stdlib class on Python 3.9+