[graph-tool] Error: Gtk, Gdk, GdkPixbuf

Hi, this is the first time I'm dabbling into graph-tool as I had always been using networkx. Anyway, I managed to successfully install the package via MacPorts. When I run: import graph_tool -- everything seems to be running okay. However, when I run: from graph_tool.all import * I am getting the following: ERROR:root:Could not find any typelib for Gtk ERROR:root:Could not find any typelib for Gdk ERROR:root:Could not find any typelib for GdkPixbuf Has anyone encountered this before? Were you able to resolve it? Thank you. E