I'm wondering if anyone has an idea for a work around with my problem. I've written a gui using pyqt which I guess uses gtk 3.x. When I import graph_tool.draw, I get an error message saying (main.py:3823): Gtk-ERROR **: GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported Trace/breakpoint trap (core dumped) I've been thinking that the easiest solution would be to call anything graph_tool related in a separate process. Thoughts on this? How would I import graph_tool without importing draw? More specifically, which submodule provides the core functionality? -- 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.