[Boost-users] [graph] [python]

Hi folks, The bgl-python documentation says that the _graph.Graph.add_vertex() function returns a Vertex object. From my testing, the Vertex object that gets returned doesn't actually seem to be a member of the graph. Is this intentional? I was hoping that the returned Vertex object was valid, since I need access to it immediately. Here's a test program. I woudl expect the values for v1 and v2 to be in the graph, but they are not: =================== import boost.graph as bgl graph = bgl.Graph() v1 = graph.add_vertex() print "new v1=", v1 v2 = graph.add_vertex() print "new v2=", v2 e = graph.add_edge(v1, v2) print "new edge=", e for vertex in graph.vertices: print "vertex: ", vertex for edge in graph.edges: print "edge: ", edge print "edge source:", graph.source(e) ========================= Here's what I see: new v1= new v2= new edge= vertex: vertex: edge: edge source: As you can see, v1 and v2 return and have different addresses than the Vertex objects that are listed by the vertices iterator. My guess here is that the Vertex objects do point to the same underlying vertex in the C++ implementation of the graph.