Use of iterators for state machine (was Re: 2.2 features)

Peter Hansen peter at
Thu Jul 26 14:29:42 CEST 2001

Tim Peters wrote:
> [Peter Hansen]
[on iterators]
> > I'm especially looking forward to using them to implement state machines.
> Have you read PEP 255 ("Simple Generators")?  There's a long section at the
> start discussing exactly that.  [...]

Clearly I had not :-).  I shall.  Thanks for the background.

> If you don't think about it too much <wink>, it all works the way you
> expect; if you do think about it too much, it takes an "aha!" (or maybe even
> two) to figure out *why* it all works.  It took me about 8 years to explain
> it to Guido <wink> -- although, in his defense, he may wish to protest that
> the first time he actually paid attention to what I was screaming at him, he
> "got it" in about one minute flat.

Thanks for leaving me an "out":  I'll let you know when *I* actually
start paying attention, since I don't entirely get it just yet. ;-)

Peter Hansen, P.Eng.
peter at

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