/usr/lib/python2.7/dist-packages/matplotlib/backends/qt_editor/__init__.py is in python-matplotlib 1.4.2-3.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | from __future__ import (absolute_import, division, print_function,
unicode_literals)
|