[Python-3000] Abilities / Interfaces

[Guido van Rossum]

On 11/22/06, Bill Janssen <janssen at parc.com> wrote:
> Something like
>
>   class MyNewClass (ExistingClass, OtherInterfaceIJustNoticedExistingClassImplements):
>     pass

No, unless you can also patch up all code that creates ExistingClass
instances. You alluded to this before and it sounded like you didn't
think it was an issue. Why do you think that? I see it as a huge
problem when retrofitting pre-existing third-party code.

-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)