[New-bugs-announce] [issue22487] ABC register doesn't check abstract methods

[Ryan McCampbell]

New submission from Ryan McCampbell:

Is there a reason register() doesn't check for abstract methods, like subclassing does? Would it fail for some builtin classes? It seems that this would be a better guarantee that, say, something really is iterable when you check isinstance(Collections.Iterable, o), since someone could have called Collections.Iterable.register(o.__class__) without adding an __iter__ method to their class.

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messages: 227489
nosy: rmccampbell7
priority: normal
severity: normal
status: open
title: ABC register doesn't check abstract methods
type: enhancement

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22487>
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