ordered sets operations on lists..

[Felipe Almeida Lessa]

Em Dom, 2006-02-12 às 23:51 -0500, Steve Holden escreveu:
> The basic answer is that so far no developer has felt it worthwhile to 
> expend time on adding these optimizations.

I always thought these small optimizations could lead Python to be
faster overall. I remember about this every time I see CPython vs.
IronPython benchmarks (.NET and Mono do some nice optimizations at
compile and run times).

> > Also, IIRC Psyco does optimize these constant expressions. Or am I
> > wrong?
> > 
> Psyco does some very advanced things, but it does them all at run-time. 
> Unless I misunderstand (not unheard of), there are no circumstances 
> under which Psyco will improve run-time for a piece of code that is only 
> executed once.

Sorry, I think I should have been clearer. Yes, Psyco only helps at
runtime (when the function is called), but those constant folds only
practically help on parts of the code that are called many times anyway,
right?

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