[Python-Dev] Exception for setting attributes of built-in type

Benjamin Peterson benjamin at python.org
Mon Jun 15 21:09:00 CEST 2009

2009/6/15 Nick Coghlan <ncoghlan at gmail.com>:
> Guido van Rossum wrote:
>> In general, CPython isn't always consistent in raising AttributeError
>> and TypeError when it comes to such policy issues: there are various
>> places that raise TypeError in typeobject.c (and probably elsewhere)
>> that simply forbid setting a specific attribute (another example is
>> __name__).
> We're pretty inconsistent when it comes to looking up special methods as
> well - those that are looked up through dedicated slots in abstract.c
> usually raise TypeError, while those that are looked up via a PyType
> method usually raise AttributeError.

What's a PyType method?


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