On Mon, Dec 15, 2008 at 12:24 PM, Kirk Strauser <k...@daycos.com> wrote: > At 2008-12-15T20:03:14Z, "Chris Rebert" <c...@rebertia.com> writes: > >> You just need a recursive list-flattening function. There are many >> recipes for these. Here's mine: > >>>>> flattened = flatten([1,2,3,[5,6,[10, 11]],7,[9,[1, 2, 3, 4, 5 ]]]) >>>>> flattened >> [1, 2, 3, 5, 6, 10, 11, 7, 9, 1, 2, 3, 4, 5] >>>>> '-'.join(str(num) for num in flattened) >> '1-2-3-5-6-10-11-7-9-1-2-3-4-5' > > He doesn't want to flatten them directly. He's using [1,2,3] sort of like a > regular expression, so that 1,[2,3],4 means "1,2,4" or "1,3,4", not > "1,2,3,4".
Ah, my bad. Misinterpreted. Still, it's a similar principle involved. He just needs to code up the right recursive function. Not all that hard. Cheers, Chris -- Follow the path of the Iguana... http://rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
