gnome-python2-extras seems to be compiled with very few modules enabled. In particular, to package the much-anticipated Glom tool, I would requires the gda module to be available (pygda-1.2). Since 2.14.1 was just released, this could be good timing for an update. Enabling gda should cause two extras BRs: libgda-devel and pygtk2-devel
libgda is in extras. Fell free to create a gnome-python2-gda package in Extras.