[Python-Dev] Int FutureWarnings and other 2.4 TODOs (original) (raw)

Andrew Koenig ark-mlist at att.net
Wed Dec 3 10:41:43 EST 2003

> 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.

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