Completing functionality for enum.auto #1331
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Full context: python/mypy#3441
stdlib/3.4/enum.pyi
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| @@ -32,8 +32,9 @@ def unique(enumeration: _S) -> _S: ... | |||
| if sys.version_info >= (3, 6): | |||
| _auto_null = ... # type: Any | |||
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| class auto: | |||
| class auto(IntFlag): | |||
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Can you add a comment explaining why we're lying here? Maybe link to the mypy issue or PR.
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enum.IntFlag has all the right methods & properties to most closely match the behavior of anything returned by enum.auto()
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Could you add that in the code itself?
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Done. I hope a docstring is apporopriate.
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A comment is preferred. (Also, why is an __init__ needed?)
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As written in my comment, I don't think the comment is telling the truth but the inadvertent result of some misunderstanding. https://youtrack.jetbrains.com/issue/PY-53388/PyCharm-thinks-enumauto-needs-an-argument#focus=Comments-27-6301482.0-0
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If you think there are problems with how things are implemented, please open a new issue.
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Please open a typeshed issue if you want typeshed people to do something about it.
Full context: python/mypy#3434
This diff is needed to properly exercise enum.auto when type-checking. Otherwise, enum.auto just renders out to Any().
The attached issue, along with the proposed changes here python/mypy#3441 would suggest a proper method for testing this precise feature.