On Fri, May 1, 2009 at 4:25 PM, Dave Angel <da...@ieee.org> wrote: > The problem is in it2, which is initialized only once. Thus the second time > you're going through the c2 loop, it doesn't have any more values. > > If you need the indirection provided by those it1 and it2, you need to > postpone the function evaluation, at least for it2. > > I'd do > it1 = gen > it2 = gen > > list(c1 + c2 for c1 in it1() for c2 in it2()) > or more simply: > [c1 + c2 for c1 in it1() for c2 in it2()]
Another possibility would be to use the outcome of looping through the generator rather than the generator itself: it1 = list(gen()) it2 = list(gen()) [c1 + c2 for c1 in it1() for c2 in it2()] -- André Engels, andreeng...@gmail.com -- http://mail.python.org/mailman/listinfo/python-list
