/usr/lib/python2.7/dist-packages/celery/tests/backends/ is in python-celery 3.1.20-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/celery/tests/backends/__init__.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_amqp.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_backends.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_base.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_cache.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_cassandra.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_couchbase.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_database.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_mongodb.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_redis.py
/usr/lib/python2.7/dist-packages/celery/tests/backends/test_rpc.py