[Python-Dev] genexps slow?
Guido van Rossum
guido at python.org
Wed Mar 31 00:29:23 EST 2004
Can anybody explain this?
[guido at guido linux]$ ./python ../Lib/timeit.py -s 'r=range(10000)' 'sum([x for x in r])'
100 loops, best of 3: 7.75 msec per loop
[guido at guido linux]$ ./python ../Lib/timeit.py -s 'r=range(10000)' 'sum(x for x in r)'
100 loops, best of 3: 8.23 msec per loop
(I believe this is with the penultimate version of the patch from SF.)
--Guido van Rossum (home page: http://www.python.org/~guido/)
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