[Python-Dev] Int FutureWarnings and other 2.4 TODOs

[Andrew Koenig]

> > Isn't the 'long' format the more general representation, with the 'int'
> > format then being a performance hack to take advantage of the speed of C
> > integer arithmetic?
> >
> > I'm just wondering if a different way of thinking about it might help
> > with figuring out how to handle a combined implementation.
> 
> I proposed that too, but Andrew Koenig didn't like it.

It's not me, it's Barbara Liskov at MIT.

The general notion is that if Y is derived from X, then you should be able
to use a Y wherever you might otherwise want to use an X.  In other words, Y
should support every operation that X supports, but Y can add operations of
its own.