pairwise combination of two lists

Date	2011-08-17 16:22 -0400
From	Yingjie Lin <Yingjie.Lin@mssm.edu>
Subject	pairwise combination of two lists
Newsgroups	comp.lang.python
Message-ID	<mailman.146.1313614713.27778.python-list@python.org> (permalink)

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Hi Python users,

I have two lists: 

li1 = ['a', 'b']
li2 = ['1', '2']

and I wish to obtain a list like this

li3 = ['a1', 'a2', 'b1', 'b2']

Is there a handy and efficient function to do this, especially when li1 and li2 are long lists.
I found zip() but it only gives [('a', '1'), ('b', '2')],  not exactly what I am looking for.

Thank you.


- Yingjie

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Thread

pairwise combination of two lists Yingjie Lin <Yingjie.Lin@mssm.edu> - 2011-08-17 16:22 -0400
  Re: pairwise combination of two lists Mel <mwilson@the-wire.com> - 2011-08-17 17:15 -0400
    Re: pairwise combination of two lists Mel <mwilson@the-wire.com> - 2011-08-17 17:18 -0400
  Re: pairwise combination of two lists Marc Christiansen <usenet@solar-empire.de> - 2011-08-17 23:43 +0200
  Re: pairwise combination of two lists Luis M. González <luismgz@gmail.com> - 2011-08-17 16:27 -0700
  Re: pairwise combination of two lists Paul Rubin <no.email@nospam.invalid> - 2011-08-18 00:18 -0700
  Re: pairwise combination of two lists Alain Ketterlin <alain@dpt-info.u-strasbg.fr> - 2011-08-18 09:30 +0200
  Re: pairwise combination of two lists SigmundV <sigmundv@gmail.com> - 2011-08-18 14:51 -0700

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