can't set attributes of built-in/extension type

[Neal Becker]

7stud wrote:

> On Feb 21, 11:19 am, Neal Becker <ndbeck... at gmail.com> wrote:
>> I'm working on a simple extension.  Following the classic 'noddy'
>> example.
>>
>> In [15]: cmplx_int32
>> Out[15]: <type 'numpy.cmplx_int32'>
>>
>> Now I want to add an attribute to this type.  More precisely, I want a
>> class attribute.
>>
>> cmplx_int32.test = 0
>> ---------------------------------------------------------------------------
>> TypeError                                 Traceback (most recent call
>> last)
>>
>> /home/nbecker/numpy/<ipython console> in <module>()
>>
>> TypeError: can't set attributes of built-in/extension
>> type 'numpy.cmplx_int32'
>>
>> What am I missing?
> 
> 
> class Dog(object):
>     def __setattr__(self, attr, val):
>         print "TypeError: can't set attributes of built-in/extension"
>         print "type 'Dog.cmplx_int32'"
> 
> d = Dog()
> d.test = 0
> 
> --output:--
> TypeError: can't set attributes of built-in/extension
> type 'Dog.cmplx_int32'

Not quite, I'm setting a class attribute, not an attribute on an instance.