/usr/lib/ is in python-windowmocker 1.4+14.04.20140220.1-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/window_mocker-1.4.egg-info/
/usr/lib/python2.7/dist-packages/window_mocker-1.4.egg-info/top_level.txt
/usr/lib/python2.7/dist-packages/window_mocker-1.4.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/window_mocker-1.4.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/windowmocker/
/usr/lib/python2.7/dist-packages/windowmocker/plugins/
/usr/lib/python2.7/dist-packages/windowmocker/plugins/qt4.py
/usr/lib/python2.7/dist-packages/windowmocker/plugins/qt5.py
/usr/lib/python2.7/dist-packages/windowmocker/plugins/__init__.py
/usr/lib/python2.7/dist-packages/windowmocker/plugins/base.py
/usr/lib/python2.7/dist-packages/windowmocker/__init__.py