On Wed, Feb 08, 2006 at 12:50:19PM -0800, Swroteb wrote: > Hi there, > > I've got a reasonably sized list of objects that I'd like to pull out > all combinations of five elements from. Right now I have a way to do > this that's quite slow, but manageable. I know there must be a better > way to do this, but I'm not sure what it is. Here's what I've got so > far: >
import probstat # http://probstat.sourceforge.net for (a, b, c) in probstat.Combination(range(9), 3): # 0..9, pick 3 print a, b, c It is a C extension that does permutations & combinations and is about 10x faster than doing it in pure python [I'm the author]. It is also the 3rd result for "python combination" and 5th for "python permutaiton" but every month someone posts to c.l.py asking for something similar. Go figure. -jackdied -- http://mail.python.org/mailman/listinfo/python-list