how to separate a list into two lists?
timr at probo.com
Sun Aug 7 02:58:30 CEST 2011
smith jack <thinke365 at gmail.com> 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?
There will always be a loop. It might not be written with a "for"
statement, but there will always be a loop.
L1 = [k for k in L]
L2 = [k for k in L]
I did momentarily consider the following slimy solution:
L1 = dict(L).keys()
L2 = dict(L).values()
but that reorders the tuples. They still correspond, but in a different
Tim Roberts, timr at probo.com
Providenza & Boekelheide, Inc.
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