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Groups > comp.lang.python > #35486
| Date | 2012-12-25 01:18 -0500 |
|---|---|
| From | Dave Angel <d@davea.name> |
| Subject | Re: Custom alphabetical sort |
| References | <roy-BEEA73.11183724122012@news.panix.com> <mailman.1262.1356372812.29569.python-list@python.org> <945054f8-9827-4aaf-9c4d-00970404ca18@googlegroups.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.1268.1356416441.29569.python-list@python.org> (permalink) |
On 12/24/2012 06:19 PM, Pander Musubi wrote:
> <snip>
> to prevent
>
> Traceback (most recent call last):
> File "./sort.py", line 23, in <module>
> things_to_sort.sort(key=string2sortlist)
> File "./sort.py", line 15, in string2sortlist
> return [hashindex[s] for s in string]
> KeyError: '\xc3'
>
> Thanks very much for this efficient code.
Perhaps you missed Ian Kelly's correction of Thomas Bach's approach:
d = { k: v for v, k in enumerate(cs) }
def collate(x):
return list(map(d.get, x))
sorted(data, key=collate)
I'd use Ian Kelly's approach. It's not only more compact, it shouldn't
give an exception for a character not in the table. At least, not for
Python 2.x. I'm not sure about Python 3, since it can give an exception
comparing None to int.
--
DaveA
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Re: Custom alphabetical sort Roy Smith <roy@panix.com> - 2012-12-24 11:18 -0500
Re: Custom alphabetical sort Pander Musubi <pander.musubi@gmail.com> - 2012-12-24 08:40 -0800
Re: Custom alphabetical sort Roy Smith <roy@panix.com> - 2012-12-24 12:40 -0500
Re: Custom alphabetical sort Pander Musubi <pander.musubi@gmail.com> - 2012-12-24 09:53 -0800
Re: Custom alphabetical sort Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-12-24 18:07 +0000
Re: Custom alphabetical sort Joshua Landau <joshua.landau.ws@gmail.com> - 2012-12-24 18:12 +0000
Re: Custom alphabetical sort Pander Musubi <pander.musubi@gmail.com> - 2012-12-24 15:19 -0800
Re: Custom alphabetical sort Dave Angel <d@davea.name> - 2012-12-25 01:18 -0500
Re: Custom alphabetical sort Joshua Landau <joshua.landau.ws@gmail.com> - 2012-12-27 01:13 +0000
Re: Custom alphabetical sort Pander Musubi <pander.musubi@gmail.com> - 2012-12-24 15:19 -0800
Re: Custom alphabetical sort Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-12-24 22:57 +0000
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