True, False, None (was re. Pruss's manifesto)

[Skip Montanaro]

    Thomas> A much better way to achieve the same goal would be to make the
    Thomas> optimizer recognize that True isn't re-bound within the loop.

Easier said than done.  Given:

    while True:
        foo()

how do you know that foo() doesn't twiddle Python's builtins?

    Thomas> Making the optimizer better would improve the performance of
    Thomas> much more code than just 'while True' loops.

What optimizer? ;-)

Skip