Eric Snow added the comment:
It does not necessarily require a metaclass. You can accomplish it using a
custom descriptor:
class classattr:
def __init__(self, getter):
self.getter = getter
def __get__(self, obj, cls):
return self.getter(cls)
FWIW, this is a descriptor that may be worth adding somewhere regardless.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue19640>
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