I got the problem. Graph Tool by default accepts only vertex objects or int(index) values on edge list and hence either I pass on vertex object list or keep the options* hashed=True and string_vals=True* in the add_edge_list option.
The problem is resolved now. Thank you -- Sent from: http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/ _______________________________________________ graph-tool mailing list graph-tool@skewed.de https://lists.skewed.de/mailman/listinfo/graph-tool
