/usr/lib/ is in python-oslo.rootwrap 1.2.0-0ubuntu1.
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/oslo.rootwrap-1.2.0-nspkg.pth
/usr/lib/python2.7/dist-packages/oslo.rootwrap-1.2.0.egg-info/
/usr/lib/python2.7/dist-packages/oslo.rootwrap-1.2.0.egg-info/namespace_packages.txt
/usr/lib/python2.7/dist-packages/oslo.rootwrap-1.2.0.egg-info/requires.txt
/usr/lib/python2.7/dist-packages/oslo.rootwrap-1.2.0.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/oslo.rootwrap-1.2.0.egg-info/not-zip-safe
/usr/lib/python2.7/dist-packages/oslo.rootwrap-1.2.0.egg-info/top_level.txt
/usr/lib/python2.7/dist-packages/oslo.rootwrap-1.2.0.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/oslo.rootwrap-1.2.0.egg-info/SOURCES.txt
/usr/lib/python2.7/dist-packages/oslo/
/usr/lib/python2.7/dist-packages/oslo/rootwrap/
/usr/lib/python2.7/dist-packages/oslo/rootwrap/filters.py
/usr/lib/python2.7/dist-packages/oslo/rootwrap/cmd.py
/usr/lib/python2.7/dist-packages/oslo/rootwrap/__init__.py
/usr/lib/python2.7/dist-packages/oslo/rootwrap/wrapper.py