[Python-3000] PEP 3119 - Introducing Abstract Base Classes

[Barry Warsaw]

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On Apr 30, 2007, at 7:43 PM, Guido van Rossum wrote:

> Right. int (long doesn't exist in py3k!) doesn't change -- the only
> thing that "changes" is that the question subclass(int, Integer) is
> answered positively, but since you can't ask that question without
> first importing Integer (from abc), there is no way that you can
> detect this as a change. Note that you won't find Integer if you
> traverse int.__mro__ or int.__bases__.

Cool.
- -Barry

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