example.py <http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/file/n4025204/example.py> example.xml.gz <http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/file/n4025204/example.xml.gz> My OS is Ubuntu 12.04 LTS. The graph_tool version is python-graph-tool/precise uptodate 2.2.26-1. The same error exists when I build animation_sirs.py at the line 31: g = Graph(g, prune=True) Besides, I would like to set the pos of vertices by their communities. Such as, the vertices in the same community should locate at the near position. Can I set pos by myself ? Thank you. -- View this message in context: http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/... Sent from the Main discussion list for the graph-tool project mailing list archive at Nabble.com.