[Python-ideas] Fix that broken callable builtin

[Guido van Rossum]

No, but you can refer to this thread.

On Fri, Apr 17, 2015 at 3:34 PM, Ionel Cristian Mărieș <contact at ionelmc.ro>
wrote:

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


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