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Cherry pick the typeshed fix for 12339 #12340

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merged 1 commit into from
Mar 14, 2022

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offbyone
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Description

Typeshed cherry-pick: Use import instead of type alias in email/message.pyi (#7022)

Fixes #12339

(Explain how this PR changes mypy.)

I've confirmed that this resolves the type checking error introduced in 0.940 using hamcrest as a testbed.

@AlexWaygood
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AlexWaygood commented Mar 12, 2022

The typeshed fix works fine, but is basically a hack to work around a bug in mypy. @sobolevn worked out how to fix the actual bug in #12134. #12134 is still a work in progress — but maybe it would be good to excise the Any-alias bugfix from that PR, and merge that as a standalone PR, instead of cherry-picking the typeshed hack?

@JelleZijlstra
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If we want to do a bugfix mypy release it's probably easier to merge this simple change.

@AlexWaygood
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If we want to do a bugfix mypy release it's probably easier to merge this simple change.

Yes, fair enough — best to keep it simple.

@github-actions
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

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@JukkaL JukkaL left a comment

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Ok, let's use this as a tempory fix.

@JukkaL JukkaL merged commit 9135795 into python:master Mar 14, 2022
JukkaL pushed a commit that referenced this pull request Mar 14, 2022
…age.pyi` (#7022) (#12340)

Co-authored-by: Chris Rose <offline@offby1.net>
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Typeshed regression in 0.940
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