Traceback (most recent call last):

 "/usr/local/lib/python2.7/dist-packages/paperwork/frontend/util/canvas/__init__.py", line 208, in __on_draw
drawer.draw(cairo_ctx)

 "/usr/local/lib/python2.7/dist-packages/paperwork/frontend/util/canvas/animations.py", line 197, in draw
(self.frame % self.nb_frames[0]),ZeroDivisionError: integer division or modulo by zero
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_edge_labels