On Sun, Oct 2, 2011 at 12:57 PM, Antoine Pitrou <solipsis at pitrou.net> wrote: > Hello? > The issue is not that walking over an iterator changes the state of the > iterator, it is that "x in A" iterates over A at all. Hello? That is the original definition of "in". -- --Guido van Rossum (python.org/~guido)