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Groups > comp.lang.python > #49997
| From | Helmut Jarausch <jarausch@igpm.rwth-aachen.de> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: How to make this faster |
| Date | 2013-07-05 15:47 +0000 |
| Message-ID | <b3o851Fu5lhU1@mid.dfncis.de> (permalink) |
| References | <b3ne2rFojnkU1@mid.dfncis.de> <b3nmtfFojnkU3@mid.dfncis.de> |
On Fri, 05 Jul 2013 16:18:41 +0100, Fábio Santos wrote: > On 5 Jul 2013 15:59, "Helmut Jarausch" <jarausch@igpm.rwth-aachen.de> wrote: >> >> On Fri, 05 Jul 2013 13:44:57 +0100, Fábio Santos wrote: >> May I suggest you avoid range and use enumerate(the_array) instead? It >> might be faster. >> >> How does this work? >> >> Given >> >> Grid= [[0 for j in range(9)] for i in range(9)] >> >> for (r,c,val) in ????(Grid) : >> >> Helmut > > for r, row_lst in enumerate(Grid): > for c, val in enumerate(row_lst): This is only slightly faster. I assume the creation of the temporary lists "row_list" is a bit expensive. Taking 5.4 seconds it's much slower than the current champion ( 0.79 seconds ) Thanks, Helmut.
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How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 08:22 +0000
Re: How to make this faster Fábio Santos <fabiosantosart@gmail.com> - 2013-07-05 10:38 +0100
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 10:07 +0000
Re: How to make this faster Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-07-05 11:13 +0100
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 10:53 +0000
Re: How to make this faster Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-07-05 12:02 +0000
Re: How to make this faster Fábio Santos <fabiosantosart@gmail.com> - 2013-07-05 13:44 +0100
Re: How to make this faster Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-07-05 14:41 +0100
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 14:28 +0000
Re: How to make this faster Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-07-05 15:45 +0100
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 14:48 +0000
Re: How to make this faster Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-07-05 16:26 +0100
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 14:54 +0000
Re: How to make this faster Fábio Santos <fabiosantosart@gmail.com> - 2013-07-05 16:18 +0100
Re: How to make this faster Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-07-05 16:24 +0000
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 15:17 +0000
Re: How to make this faster Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-07-05 16:38 +0100
Re: How to make this faster MRAB <python@mrabarnett.plus.com> - 2013-07-05 17:25 +0100
Re: How to make this faster Joshua Landau <joshua.landau.ws@gmail.com> - 2013-07-06 02:45 +0100
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 15:47 +0000
Re: How to make this faster Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-07-05 16:52 +0000
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 16:07 +0000
Re: How to make this faster Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-07-05 16:50 +0000
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 18:39 +0000
Re: How to make this faster Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-07-06 03:05 +0000
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-06 07:25 +0000
Re: How to make this faster Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-07-05 18:42 +0000
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