Even stranger: The same happens for Graph as well. It seems constructing an empty graph or digraph with
G=Graph(multiple_edges=True) or G=Graph([],multiple_edges=True) does not set the property of being a multi-graph. E.g. doing G afterwards gives the information Graph on 0 vertices instead of Multi-graph on 0 vertices Now I think it really is a bug. Is there already a ticket for this? Best M. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
