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Groups > comp.lang.python > #105790
| From | Mark Lawrence <breamoreboy@yahoo.co.uk> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: Exclude every nth element from list? |
| Date | 2016-03-26 22:57 +0000 |
| Message-ID | <mailman.60.1459033114.28225.python-list@python.org> (permalink) |
| References | <94237154-22af-4e64-85ee-9b4cf334fa6f@googlegroups.com> <mailman.43.1459011712.28225.python-list@python.org> <eb30d5b5-f8f5-4c51-8b71-2033dc8c65c5@googlegroups.com> |
On 26/03/2016 22:08, beliavsky--- via Python-list wrote: > On Saturday, March 26, 2016 at 1:02:06 PM UTC-4, Gary Herron wrote: >> On 03/26/2016 09:49 AM, beliavsky--- via Python-list wrote: >>> I can use x[::n] to select every nth element of a list. Is there a one-liner to get a list that excludes every nth element? >> >> Yes: >> >> >>> L=list(range(20)) >> >>> [x for i,x in enumerate(L) if i%3 != 0] >> [1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19] >> >> >> Gary Herron >> > > Thanks to you and others who replied. I see that enumerate is a useful function. > It is, but you may like to note that you don't have to count from zero. The 'start' keyword can be set to anything you like. -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. Mark Lawrence
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Exclude every nth element from list? beliavsky@aol.com - 2016-03-26 09:49 -0700
Re: Exclude every nth element from list? Gary Herron <gherron@digipen.edu> - 2016-03-26 10:01 -0700
Re: Exclude every nth element from list? beliavsky@aol.com - 2016-03-26 15:08 -0700
Re: Exclude every nth element from list? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-26 22:57 +0000
Re: Exclude every nth element from list? Bob Gailer <bgailer@gmail.com> - 2016-03-26 13:03 -0400
Re: Exclude every nth element from list? Erik <python@lucidity.plus.com> - 2016-03-26 17:06 +0000
Re: Exclude every nth element from list? Vincent Vande Vyvre <vincent.vande.vyvre@telenet.be> - 2016-03-26 18:06 +0100
Re: Exclude every nth element from list? Peter Otten <__peter__@web.de> - 2016-03-26 18:06 +0100
Re: Exclude every nth element from list? Vincent Vande Vyvre <vincent.vande.vyvre@telenet.be> - 2016-03-26 18:12 +0100
Re: Exclude every nth element from list? BartC <bc@freeuk.com> - 2016-03-26 17:50 +0000
Re: Exclude every nth element from list? "Sven R. Kunze" <srkunze@mail.de> - 2016-03-29 15:45 +0200
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