[issue13258] replace hasattr(obj, '__call__') with callable(obj)

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

callable() is not just faster, it's also "more correct": hasattr(obj, "__call__") doesn't call base classes. See callable() of the six module:


def callable(obj):
  return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)

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nosy: +haypo

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<http://bugs.python.org/issue13258>
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