Georg Brandl wrote:
> Bernhard Herzog wrote:
>> "Travis E. Oliphant" <[EMAIL PROTECTED]> writes:
>>
>>> 2) The __index__ special method will have the signature
>>>
>>> def __index__(self):
>>> return obj
>>>
>>> Where obj must be either an int or a long or another object
>>> that has the __index__ special method (but not self).
>> So int objects will not have an __index__ method (assuming that ints
>> won't return a different but equal int object). However:
>>
>>> 4) A new operator.index(obj) function will be added that calls
>>> equivalent of obj.__index__() and raises an error if obj does not
>>> implement the special method.
>> So operator.index(1) will raise an exception. I would expect
>> operator.index to be implemented using PyNumber_index.
>
> I'd expect that __index__ won't be called on an int in the first place.
The PEP has been updated to cover adding the __index__ slot to int/long so
that "one check finds all". The slot will just get bypassed for ints and longs
by a lot of the C code in the interpreter.
Cheers,
Nick.
--
Nick Coghlan | [EMAIL PROTECTED] | Brisbane, Australia
---------------------------------------------------------------
http://www.boredomandlaziness.org
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