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GeezerVison is showing mail.python.org — [Python-Dev] Make __class_getitem__ a class method [Python-Dev] Make __class_getitem__ a class methodIvan Levkivskyi levkivskyi at gmail.comFri Dec 15 12:04:38 EST 2017
On 15 December 2017 at 17:47, Yury Selivanov <yselivanov.ml at gmail.com> wrote: > Shouldn't we optimize the usability for pure-Python first, and then for C > API? > > Right now we have the '__new__' magic method, which isn't a > @classmethod. Making '__class_getitem__' a @classmethod will confuse > regular Python users. For example: > > class Foo: > def __new__(cls, ...): pass > > @classmethod > def __class_getitem__(cls, item): pass > > To me it makes sense that type methods that are supposed to be called > on type by the Python interpreter don't need the classmethod > decorator. > Good point! Pure Python will be the primary use case and we have another precedent for "automatic" class method: __init_subclass__ (it does not need to be decorated). > METH_STATIC is a public working API, and in my opinion it's totally > fine if we use it. It's not even hard to use it, it's just *mildly* > inconvenient at most. > OK, then documenting this "recipe" (METH_STATIC plus tuple unpacking) should be sufficient. -- Ivan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20171215/ca2c2610/attachment.html>
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