Hi, why can't I do this:
dummy = self.elements[toy][tox] self.elements[toy][tox] = self.elements[fromy][fromx] self.elements[fromy][fromx] = dummy after initialising my nested list like this: self.elements = [[0 for column in range(dim)] for row in range(dim) ] -- http://mail.python.org/mailman/listinfo/python-list