/usr/lib/python2.7/dist-packages/horizon/test/tests/ is in python-django-horizon 1:2014.1.5-0ubuntu2.1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/horizon/test/tests/__init__.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/base.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/forms.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/messages.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/middleware.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/selenium.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/tables.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/tabs.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/templatetags.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/utils.py
/usr/lib/python2.7/dist-packages/horizon/test/tests/workflows.py