Joel Koltner <[EMAIL PROTECTED]> wrote: > Is there an easy way to get a list comprehension to produce a flat > list of, say, [x,2*x] for each input argument? > > E.g., I'd like to do something like: > > [ [x,2*x] for x in range(4) ] > > ...and receive > > [ 0,0,1,2,2,4,3,6] > > ...but of course you really get a list of lists: > > [[0, 0], [1, 2], [2, 4], [3, 6]]
I'm not sure I would recommend it, but try: [v for x in range(4) for v in (x, 2 * x)] > A slightly similar problem: If I want to "merge," say, list1=[1,2,3] > with list2=[4,5,6] to obtain [1,4,2,5,3,6], is there some clever way > with "zip" to do so? A similar solution as above should work. Marc -- http://mail.python.org/mailman/listinfo/python-list