Python 2 times slower than Perl

Christopher A. Craig com-nospam at ccraig.org
Fri Jul 20 03:24:22 CEST 2001


bokr at accessone.com (Bengt Richter) wrote in message news:<3b550e40.2201271731 at wa.news.verio.net>...
> Well rare, but not always dumb, I think. If you're only using a constant 
> in one place that happens to be in a loop, and the clearest way to express 
> it is as a constant expresssion, you do it that way when you know it's going
> to be folded. E.g., compare (5280.0/60.0*60.0) vs 1.4666667 -- which would 
> you feel surer about, reviewing the code, given the same comment saying
> mph->fps?
>
> Of course, with Python it would be dumb not to move it out of the loop, if
> you could save significant execution time.
>

Or worse I frequently need things like (1L<<1024)-1, and though I know my
powers of two quite well, I don't think I'd immediately recognize that one 
:-)



More information about the Python-list mailing list