Traceback (most recent call last):

 "/usr/lib/python2.6/doctest.py", line 2153, in runTest
raise self.failureException(self.format_failure(new.getvalue()))AssertionError: Failed doctest test for networkx.drawing.nx_pylab.draw_networkx_nodes
Traceback (most recent call last):

 "/usr/lib/python2.7/site-packages/scc/x11/scc-osd-daemon.py", line 164, in on_unknown_message
self._window.show()

 "/usr/lib/python2.7/site-packages/scc/osd/menu.py", line 279, in show
OSDWindow.show(self, *a)

 "/usr/lib/python2.7/site-packages/scc/osd/__init__.py", line 187, in show
geometry = screen.get_monitor_geometry(screen.get_monitor_at_window(screen.get_active_window()))TypeError: Argument 1 does not allow None as a value