[issue23990] Callable builtin doesn't respect descriptors

[Ethan Furman]

Ethan Furman added the comment:

The purpose of callable is to report whether an instance is callable or not, and that information is available on the instance's class, via the presence of __call__.  It is not up to callable() nor iter() nor ... to figure out that, even though the special method __call__ or __iter__ or ... exist, the object isn't /really/ what it says it is.

If you have special needs then write special functions, and they can be imported and used instead of the regular built-in ones.

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type: behavior -> enhancement
versions: +Python 3.5 -Python 2.7, Python 3.2, Python 3.3, Python 3.4

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<http://bugs.python.org/issue23990>
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