/usr/lib/python2.7/dist-packages/matplotlib/style/__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 3 | from __future__ import absolute_import
from .core import use, context, available, library, reload_library
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