smith jack <thinke...@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[0] for k in L] L2 = [k[1] 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 order. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. -- http://mail.python.org/mailman/listinfo/python-list
