Ah, yes, someone else has already made a patch here: http://bugs.python.org/file39090/callable.diff

This is the issue: http://bugs.python.org/issue23990

Would you add your thoughts there?


Thanks,
-- Ionel
Cristian Mărieș, http://blog.ionelmc.ro

On Sat, Apr 18, 2015 at 1:19 AM, Guido van Rossum <guido@python.org> wrote:
So propose a patch for callable() along these lines. It'll have to be C code.

On Fri, Apr 17, 2015 at 2:21 PM, Ionel Cristian Mărieș <contact@ionelmc.ro> wrote:
Yes indeed, that's one way but I wouldn't want to monkeypatch the `callable` builtin. People wouldn't expect that library would even dare monkeypatch builtin.


Thanks,
-- Ionel
Cristian Mărieș, http://blog.ionelmc.ro

On Sat, Apr 18, 2015 at 12:10 AM, Ethan Furman <ethan@stoneleaf.us> wrote:
On 04/18, Ionel Cristian Mărieș wrote:

> Also there's the issue about not being able to implement a true proxy (as
> outlined before).

Proxies are a bit of a pain.  But you can create your own callable function.

Something like (untested):

def callable(obj):
    try:
        func = obj.__call__
        return True
    except AttributeError:
        return False

--
~Ethan~
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--
--Guido van Rossum (python.org/~guido)