List Combinations

Reedick, Andrew jr9445 at ATT.COM
Wed Mar 12 16:38:12 CET 2008


> -----Original Message-----
> From: python-list-bounces+jr9445=att.com at python.org [mailto:python-
> list-bounces+jr9445=att.com at python.org] On Behalf Of Shane Geiger
> Sent: Wednesday, March 12, 2008 10:33 AM
> To: Michael Wieher
> Cc: python-list at python.org
> Subject: Re: List Combinations
> 
> >
> 
> 
> def gen(lists):
>     out =  '[' + ','.join(["v%s" % i for i in range(len(lists))]) +
']'
>     comp = ''.join([ " for v%d in lists[%d]" % (i, i) for i in
> range(len(lists))])
>     return eval('[ ' + out + comp + ' ]')
> 
> a,b,c = [1,2,3],[4,5,6],[7,8,9]
> 
> print gen([a, b, c])
> 
> 
> 
> 
> 
> --
> Shane Geiger
> IT Director
> National Council on Economic Education
> sgeiger at ncee.net  |  402-438-8958  |  http://www.ncee.net
> 


It helps to quote your source...
http://www.mail-archive.com/python-list@python.org/msg178457.html


Start here
	
http://www.mail-archive.com/python-list@python.org/msg178356.html
and go through the thread.  There are several ways to solve the problem
and we evaluated the performance and 'pythonicity' of each.  




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