/usr/share/pyshared/mpl_toolkits/axes_grid/axislines.py is in python-matplotlib 1.1.1~rc1+git20120423-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | from mpl_toolkits.axisartist.axislines import *
|