Bruno Cauet added the comment:
Hi,
I feel like this behaviour does not only affect IntEnum & related but anything
that inherits from int.
Example:
>>> class foo(int):
... def __init__(self, value, base=10):
... if value == 2:
... raise ValueError("not that!!")
... super(foo, self).__init__(value, base=base)
...
>>> x = foo.from_bytes(b"\2", "big")
>>> x
2
>>> type(x)
foo
2 solutions come to mind:
- always return an int, and not the type. deleting
Objects/longobjects.c:4845,4866 does the job.
- instantiate the required type with the value as the (sole?) argument,
correctly initializing the object to be returned. In Serhyi's example this
results in x == AddressFamily.AF_UNIX. the same lines are concerned.
----------
nosy: +bru
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<http://bugs.python.org/issue23640>
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