Issue attachments for pydot/pydot-ng#92: https://github.com/pydot/pydot-ng/issues/92

pydot_simplify.patch

--- /usr/lib/python2.6/site-packages/pydot.pydot2014-06-12 06:22:57.000000000 +0400
+++ virtenv/lib/python2.6/site-packages/pydot.pydot2014-06-12 06:28:42.515864719 +0400
@@ -1455,11 +1455,11 @@

                 edge = Edge(obj_dict=obj)

-                if self.obj_dict.get('simplify', False) and elm in edges_done:
+                if self.obj_dict.get('simplify', False) and edge.obj_dict['points'] in edges_done:
                     continue
-
+
                 graph.append( edge.to_string() + '\n' )
-                edges_done.add(edge)
+                edges_done.add(edge.obj_dict['points'])

             else: