/usr/lib/ is in python-webtest 2.0.14-1ubuntu1.
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/webtest/
/usr/lib/python2.7/dist-packages/webtest/compat.py
/usr/lib/python2.7/dist-packages/webtest/debugapp.py
/usr/lib/python2.7/dist-packages/webtest/response.py
/usr/lib/python2.7/dist-packages/webtest/lint.py
/usr/lib/python2.7/dist-packages/webtest/forms.py
/usr/lib/python2.7/dist-packages/webtest/utils.py
/usr/lib/python2.7/dist-packages/webtest/app.py
/usr/lib/python2.7/dist-packages/webtest/http.py
/usr/lib/python2.7/dist-packages/webtest/ext.py
/usr/lib/python2.7/dist-packages/webtest/__init__.py
/usr/lib/python2.7/dist-packages/webtest/sel.py
/usr/lib/python2.7/dist-packages/WebTest-2.0.14.egg-info/
/usr/lib/python2.7/dist-packages/WebTest-2.0.14.egg-info/requires.txt
/usr/lib/python2.7/dist-packages/WebTest-2.0.14.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/WebTest-2.0.14.egg-info/not-zip-safe
/usr/lib/python2.7/dist-packages/WebTest-2.0.14.egg-info/entry_points.txt
/usr/lib/python2.7/dist-packages/WebTest-2.0.14.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/WebTest-2.0.14.egg-info/top_level.txt