/usr/lib/python2.7/dist-packages/keystone/token/ is in python-keystone 1:2014.1-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/keystone/token/__init__.py
/usr/lib/python2.7/dist-packages/keystone/token/backends/
/usr/lib/python2.7/dist-packages/keystone/token/backends/__init__.py
/usr/lib/python2.7/dist-packages/keystone/token/backends/kvs.py
/usr/lib/python2.7/dist-packages/keystone/token/backends/memcache.py
/usr/lib/python2.7/dist-packages/keystone/token/backends/sql.py
/usr/lib/python2.7/dist-packages/keystone/token/controllers.py
/usr/lib/python2.7/dist-packages/keystone/token/core.py
/usr/lib/python2.7/dist-packages/keystone/token/provider.py
/usr/lib/python2.7/dist-packages/keystone/token/providers/
/usr/lib/python2.7/dist-packages/keystone/token/providers/__init__.py
/usr/lib/python2.7/dist-packages/keystone/token/providers/common.py
/usr/lib/python2.7/dist-packages/keystone/token/providers/pki.py
/usr/lib/python2.7/dist-packages/keystone/token/providers/uuid.py
/usr/lib/python2.7/dist-packages/keystone/token/routers.py