Here is an example that looks less artificial: sage: list(set([-1,-2])) [-2, -1] sage: list(set([-2,-1])) [-1, -2] sage: G=Graph(); G.add_vertex(-2); G.add_vertex(-1) sage: H=Graph(); H.add_vertex(-1); H.add_vertex(-2) sage: G == H True sage: G.vertices() == H.vertices() True sage: list(G.vertex_iterator()) == list(H.vertex_iterator()) False
The trick underlying the example is the same as before: sage: hash(-1) == hash(-2) True Cheers, Erik Massop -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
