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Groups > comp.lang.python > #10987
| From | Gelonida N <gelonida@gmail.com> |
|---|---|
| Subject | Re: how to separate a list into two lists? |
| Date | 2011-08-06 22:00 +0200 |
| References | <mailman.1983.1312650424.1164.python-list@python.org> <4e3d8440$0$5872$c3e8da3$12bcf670@news.astraweb.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.1994.1312661111.1164.python-list@python.org> (permalink) |
On 08/06/2011 08:13 PM, bud wrote: > On Sun, 07 Aug 2011 01:07:00 +0800, smith jack wrote: > >> if a list L is composed with tuple consists of two elements, that is L = >> [(a1, b1), (a2, b2) ... (an, bn)] >> >> is there any simple way to divide this list into two separate lists , >> such that L1 = [a1, a2... an] >> L2=[b1,b2 ... bn] >> >> i do not want to use loop, any methods to make this done? > > > (x,y) = [ [z[i] for z in L] for i in range(len(L[0]))] > > x > : ['a1', 'a2', 'an'] > > y > : ['b1', 'b2', 'bn'] > > Asuming you are not an alias of Jack Smith and assuming you did not see Jack's thread asking the same question: x,y = unzip(*L)
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how to separate a list into two lists? smith jack <thinke365@gmail.com> - 2011-08-07 01:07 +0800
Re: how to separate a list into two lists? bud <only@fleshwound.org> - 2011-08-06 18:13 +0000
Re: how to separate a list into two lists? Gelonida N <gelonida@gmail.com> - 2011-08-06 22:00 +0200
Re: how to separate a list into two lists? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-07 10:07 +1000
Re: how to separate a list into two lists? Gelonida N <gelonida@gmail.com> - 2011-08-07 19:11 +0200
Re: how to separate a list into two lists? Tim Roberts <timr@probo.com> - 2011-08-06 17:58 -0700
Re: how to separate a list into two lists? Chris Angelico <rosuav@gmail.com> - 2011-08-07 02:05 +0100
Re: how to separate a list into two lists? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-07 11:35 +1000
Re: how to separate a list into two lists? Paul Rubin <no.email@nospam.invalid> - 2011-08-06 22:29 -0700
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