Backport bd583ef 3.6#1277
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April 24, 2017 16:29
…#527) Many metaclasses in the standard library don't play nice with __init_subclass__. This bug makes ABCMeta in particular with __init_subclass__, which is an 80/20 solution for me personally. AFAICT, a general solution to this problem requires updating all metaclasses in the standard library to make sure they pass **kwargs to type.__new__, whereas this PR only fixes ABCMeta. For context, see https://bugs.python.org/issue29581. * added a test combining ABCMeta and __init_subclass__ * Added NEWS item (cherry picked from commit bd583ef)
…ythonGH-527) Many metaclasses in the standard library don't play nice with __init_subclass__. This bug makes ABCMeta in particular with __init_subclass__, which is an 80/20 solution for me personally. AFAICT, a general solution to this problem requires updating all metaclasses in the standard library to make sure they pass **kwargs to type.__new__, whereas this PR only fixes ABCMeta. For context, see https://bugs.python.org/issue29581. * added a test combining ABCMeta and __init_subclass__ * Added NEWS item. (cherry picked from commit bd583ef)
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There is an issue on the Misc/NEWS merge :-/ |
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Oops. I don't see an easy way to fix this using the cherry_picker tool, so I'm going to abandon this PR and make a new one (merging correctly) this time, unless you object. Also, I note that there's a "No issue number in the title or "trivial" label" problem listed in 'checks'. Do you want me to add the issue label of the original issue (for which this is a backport), or stick with the auto-generated backport PR name? |
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@Soares The preferred format for backport PR titles is "[X.Y] bpo-NNNNN: ...", where X.Y is the target branch and NNNNN is the bugs.python.org issue number |
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I think I followed the backporting instructions at https://docs.python.org/devguide/committing.html?highlight=backport correctly, but this is my first time, so please let me know if I erred, as is fairly likely.