Hi again Tiago! I tried editing the Homebrew formula for librsvg to obtain the latest version and enable introspection, and sure enough I can now produce an interactive graph! Hooray! I've posted the issue on the Homebrew github page that you referred. BUT: now I have a different problem. In my beautiful interactive graphs, the second node I select infallibly triggers a fatal error that kills the kernel. Here it is: /usr/local/lib/python2.7/site-packages/graph_tool/draw/gtk_draw.py:493: Warning: g_object_ref: assertion 'G_IS_OBJECT (object)' failed icon = self.render_icon(Gtk.STOCK_EXECUTE, Gtk.IconSize.BUTTON) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) /usr/local/lib/python2.7/site-packages/graph_tool/draw/gtk_draw.pyc in draw(self, da, cr) 492 if self.surface_callback is not None: 493 icon = self.render_icon(Gtk.STOCK_EXECUTE, Gtk.IconSize.BUTTON) --> 494 Gdk.cairo_set_source_pixbuf(cr, icon, 10, 10) 495 cr.paint() 496 TypeError: Argument 1 does not allow None as a value --------------------------------------------------------------------------- TypeError Traceback (most recent call last) /usr/local/lib/python2.7/site-packages/graph_tool/draw/gtk_draw.pyc in draw(self, da, cr) 492 if self.surface_callback is not None: 493 icon = self.render_icon(Gtk.STOCK_EXECUTE, Gtk.IconSize.BUTTON) --> 494 Gdk.cairo_set_source_pixbuf(cr, icon, 10, 10) 495 cr.paint() 496 TypeError: Argument 1 does not allow None as a value Any ideas? Thanks! -- 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.