/usr/ is in python-libnacl 1.5.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/libnacl/
/usr/lib/python2.7/dist-packages/libnacl/__init__.py
/usr/lib/python2.7/dist-packages/libnacl/base.py
/usr/lib/python2.7/dist-packages/libnacl/blake.py
/usr/lib/python2.7/dist-packages/libnacl/dual.py
/usr/lib/python2.7/dist-packages/libnacl/encode.py
/usr/lib/python2.7/dist-packages/libnacl/public.py
/usr/lib/python2.7/dist-packages/libnacl/secret.py
/usr/lib/python2.7/dist-packages/libnacl/sign.py
/usr/lib/python2.7/dist-packages/libnacl/utils.py
/usr/lib/python2.7/dist-packages/libnacl/version.py
/usr/lib/python2.7/dist-packages/libnacl-1.5.0.egg-info/
/usr/lib/python2.7/dist-packages/libnacl-1.5.0.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/libnacl-1.5.0.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/libnacl-1.5.0.egg-info/top_level.txt
/usr/share/
/usr/share/doc/
/usr/share/doc/python-libnacl/
/usr/share/doc/python-libnacl/changelog.Debian.gz
/usr/share/doc/python-libnacl/copyright