/usr/lib/python2.7/dist-packages/oslo_middleware/tests/ is in python-oslo.middleware 3.8.0-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/__init__.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_base.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_catch_errors.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_correlation_id.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_cors.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_entry_points.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_healthcheck.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_http_proxy_to_wsgi.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_opts.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_request_id.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_sizelimit.py
/usr/lib/python2.7/dist-packages/oslo_middleware/tests/test_ssl.py