Remove Whitespace
Felipe Almeida Lessa
felipe.lessa at gmail.com
Thu Apr 13 22:51:38 EDT 2006
Em Sex, 2006-04-14 às 12:46 +1000, Steven D'Aprano escreveu:
> Why would you want to call in the heavy sledgehammer of regular
> expressions for cracking this peanut?
And put heavy on that!
$ python2.4 -mtimeit -s "str = 'D c a V e r \" = d w o r d : 0 0 0 0 0 6
4 0'" 'str.replace(" ", "")'
100000 loops, best of 3: 3.07 usec per loop
$ python2.4 -mtimeit -s "str = 'D c a V e r \" = d w o r d : 0 0 0 0 0 6
4 0'" '"".join(str.split())'
100000 loops, best of 3: 4.16 usec per loop
$ python2.4 -mtimeit -s "from re import sub; str = 'D c a V e r \" = d w
o r d : 0 0 0 0 0 6 4 0'" 'sub("\\s", "", str)'
10000 loops, best of 3: 23.6 usec per loop
$ calc 23.6 / 3.07
~7.68729641693811074919
I couldn't be expressed better:
"Some people, when confronted with a problem, think "I know, I'll use
regular expressions." Now they have two problems."
— Jamie Zawinski, in comp.lang.emacs
--
Felipe.
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