[Release 1.1] Cherry-pick some mypyc build fixes #14820
Merged
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The mypyc build was recently broken by a new release of
types-setuptools
. This was fixed onmaster
by the following two PRs:types-setuptools
build dependency #14787However, the mypyc build is still broken on the 1.1 branch: https://github.com/python/mypy/actions/runs/4311688115/jobs/7521345529.
This PR cherry-picks the two PRs that fixed the build to the 1.1 branch.