[issue8627] Unchecked PyErr_WarnPy3k return value in Objects/typeobject.c
Mark Dickinson
report at bugs.python.org
Sat Nov 17 19:07:01 CET 2012
Mark Dickinson added the comment:
To clarify, here's the bug: the following code should raise an exception, but doesn't:
iwasawa:cpython mdickinson$ ./python.exe -3
Python 2.7.3+ (2.7:333fe4c4897a, Nov 17 2012, 18:01:00)
[GCC 4.2.1 (Apple Inc. build 5664)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import warnings; warnings.filterwarnings("error")
>>> class A(object):
... def __eq__(self, other):
... return False
...
Without "warnings.filterwarnings("error")", the warning gets issued as expected:
iwasawa:cpython mdickinson$ ./python.exe -3
Python 2.7.3+ (2.7:333fe4c4897a, Nov 17 2012, 18:01:00)
[GCC 4.2.1 (Apple Inc. build 5664)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> class A(object):
... def __eq__(self, object):
... return False
...
__main__:1: DeprecationWarning: Overriding __eq__ blocks inheritance of __hash__ in 3.x
Brett, is it okay to re-open this? Perhaps a change of title would help? Or I can open a new issue for the remaining problem, if you think that's better.
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<http://bugs.python.org/issue8627>
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