On Mon, 2010-03-22 at 14:45 +0000, kj wrote: > I have a list of items L, and a test function is_invalid that checks > the validity of each item. To check that there are no invalid > items in L, I could check the value of any(map(is_invalid, L)). > But this approach is suboptimal in the sense that, no matter what > L is, is_invalid will be executed for all elements of L,
any( is_invalid(a) for a in L ) ... generator expression will be lazily computed. Tim -- http://mail.python.org/mailman/listinfo/python-list
