/usr/lib/python2.7/dist-packages/defusedxml/sax.py is in python-defusedxml 0.4.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/defusedxml/../../../../share/pyshared/defusedxml/sax.py