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Tue Aug 24 17:13:31 CEST 2010 · https://mail.python.org/pipermail/python-dev/2010-August/103252.html

2010/8/24 James Y Knight <foom at fuhm.net>:
>
> On Aug 24, 2010, at 10:26 AM, Benjamin Peterson wrote:
>
>> 2010/8/24 P.J. Eby <pje at telecommunity.com>:
>>>
>>> At 03:37 PM 8/24/2010 +0200, Hrvoje Niksic wrote:
>>>>
>>>> a) a "business" case of throwing anything other than AttributeError from
>>>> __getattr__ and friends is almost certainly a bug waiting to happen, and
>>>
>>> FYI, best practice for __getattr__ is generally to bail with an
>>> AttributeError as soon as you see double underscores in the name, unless
>>> you
>>> intend to support special attributes.
>>
>> Unless you're in an old-style class, you shouldn't get an double
>> underscore methods in __getattr__ (or __getattribute__). If you do,
>> it's a bug.
>
> Uh, did you see the message that was in response to?
>
> Maybe it should be a bug report?

Old version of Python I think.

-- 
Regards,
Benjamin

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[Python-Dev] 'hasattr' is broken by design