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Run self-check on Windows as part of CI #11909

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merged 3 commits into from
Jan 28, 2022

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AlexWaygood
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As discussed in #11895, mypy's test suite currently does not pass a mypy self-check when the self-check is run on Windows. This should hopefully be fixed by python/typeshed#6812. However, running a self-check on Windows as part of the CI tests should help avoid this issue in the future, and shouldn't slow down the CI too much, since it's a very fast test.

This new CI test should hopefully fail until #11905 is merged, confirming the diagnosis of the problem that I made in #11895. Once #11905 is merged, it should hopefully then pass, allowing this PR to be merged.

As discussed in python#11895, mypy's test suite currently does not pass a mypy self-check when run on Windows. This should hopefully be fixed by python/typeshed#6812, but running a self-check on Windows as part of the CI tests should help avoid this issue in the future.

This new CI test should hopefully fail until python#11905 is merged, confirming the diagnosis of the problem that I made in python#11895. Once python#11905 is merged, it should hopefully then pass, allowing this PR to be merged.
@AlexWaygood
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The new test is failing, as expected -- I'll leave this as a draft PR until #11905 is merged.

@hauntsaninja hauntsaninja marked this pull request as ready for review January 28, 2022 08:38
@hauntsaninja hauntsaninja reopened this Jan 28, 2022
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I synced typeshed, but it looks like we still have a number of failures. Probably fixable with some assert sys.platform == 'win32'

@AlexWaygood
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Aaaand the Windows self-check is finally green 🥳🥳

Comment on lines +520 to +521
if sys.platform == "win32":
assert False, "curses is not available on Windows"
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Suggested change
if sys.platform == "win32":
assert False, "curses is not available on Windows"
assert sys.platform != "win32", "curses is not available on Windows"

This should work, right?

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I tried that first, doesn't seem to work unfortunately

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Ironically the only reason why curses is causing the self-check to fail is because of my own PR to typeshed python/typeshed#6749

@JelleZijlstra JelleZijlstra merged commit 8f9ebf0 into python:master Jan 28, 2022
@AlexWaygood AlexWaygood deleted the windows-self-check branch January 28, 2022 20:37
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Thanks @JelleZijlstra!

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3 participants