h=graphs.ButterflyGraph()
graph_editor(h)
The result is the editor opens and the square the graph is supposed to be in is completely blank.
Sage 4.7.1, Firefox 7.0.1 running in notebook
When I click Save to see if that does anything, the result is the code graph_editor(h) is changed to:
h = Graph(}); h.set_pos(}); graph_editor(h);
which throws an error.