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| From | Peter Otten <__peter__@web.de> |
| Newsgroups | comp.lang.python |
| Subject | Re: Dictionaries and incrementing keys |
| Followup-To | comp.lang.python |
| Date | Tue, 14 Jun 2011 13:16:47 +0200 |
| Organization | None |
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| References | <slrnivefl8.47d.steve@news.mixmin.net> |
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Steve Crook wrote: > I've always done key creation/incrementation using: > > if key in dict: > dict[key] += 1 > else: > dict[key] = 1 Your way is usually faster than > dict[key] = dict.get(key, 0) + 1 > > Whilst certainly more compact, I'd be interested in views on how > pythonesque this method is. You may also consider http://docs.python.org/library/collections.html#collections.defaultdict http://docs.python.org/library/collections.html#collections.Counter
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Dictionaries and incrementing keys Steve Crook <steve@mixmin.net> - 2011-06-14 10:57 +0000
Re: Dictionaries and incrementing keys Peter Otten <__peter__@web.de> - 2011-06-14 13:16 +0200
Re: Dictionaries and incrementing keys AlienBaby <matt.j.warren@gmail.com> - 2011-06-14 05:37 -0700
Re: Dictionaries and incrementing keys Steve Crook <steve@mixmin.net> - 2011-06-14 12:53 +0000
Re: Dictionaries and incrementing keys Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-06-14 13:26 +0000
Re: Dictionaries and incrementing keys Steve Crook <steve@mixmin.net> - 2011-06-14 12:57 +0000
Re: Dictionaries and incrementing keys Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-06-14 13:24 +0000
Re: Dictionaries and incrementing keys Asen Bozhilov <asen.bozhilov@gmail.com> - 2011-06-14 09:30 -0700
Re: Dictionaries and incrementing keys Raymond Hettinger <python@rcn.com> - 2011-06-25 01:13 -0700
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