> If an object has no slots or dict and does not accept attribute assignment, is it not effectively immutable?
No, not necessarily. class A(list): __slots__ = () 2017-07-28 10:00 GMT+02:00 Mike Miller <python-id...@mgmiller.net>: > > > On 2017-07-27 18:02, Chris Angelico wrote: > > As Ivan said, this is to do with __slots__. It's nothing to do with > > immutability: > > >>> object().__slots__ > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > AttributeError: 'object' object has no attribute '__slots__' > > >>> object().__dict__ > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > AttributeError: 'object' object has no attribute '__dict__' > >>> > > If an object has no slots or dict and does not accept attribute > assignment, is it not effectively immutable? > > -Mike > > _______________________________________________ > Python-ideas mailing list > Python-ideas@python.org > https://mail.python.org/mailman/listinfo/python-ideas > Code of Conduct: http://python.org/psf/codeofconduct/ > -- Antoine Rozo
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