/usr/lib/ is in python-simplestreams 0.1.0~bzr341-0ubuntu2.3.
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/simplestreams/
/usr/lib/python2.7/dist-packages/simplestreams/mirrors/
/usr/lib/python2.7/dist-packages/simplestreams/mirrors/command_hook.py
/usr/lib/python2.7/dist-packages/simplestreams/mirrors/__init__.py
/usr/lib/python2.7/dist-packages/simplestreams/mirrors/glance.py
/usr/lib/python2.7/dist-packages/simplestreams/util.py
/usr/lib/python2.7/dist-packages/simplestreams/openstack.py
/usr/lib/python2.7/dist-packages/simplestreams/objectstores/
/usr/lib/python2.7/dist-packages/simplestreams/objectstores/s3.py
/usr/lib/python2.7/dist-packages/simplestreams/objectstores/swift.py
/usr/lib/python2.7/dist-packages/simplestreams/objectstores/__init__.py
/usr/lib/python2.7/dist-packages/simplestreams/checksum_util.py
/usr/lib/python2.7/dist-packages/simplestreams/log.py
/usr/lib/python2.7/dist-packages/simplestreams/__init__.py
/usr/lib/python2.7/dist-packages/simplestreams/contentsource.py
/usr/lib/python2.7/dist-packages/simplestreams/filters.py