/usr/lib/python3/dist-packages/castellan/tests/unit/key_manager/ is in python3-castellan 0.17.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/castellan/tests/unit/key_manager/__init__.py
/usr/lib/python3/dist-packages/castellan/tests/unit/key_manager/fake.py
/usr/lib/python3/dist-packages/castellan/tests/unit/key_manager/mock_key_manager.py
/usr/lib/python3/dist-packages/castellan/tests/unit/key_manager/test_barbican_key_manager.py
/usr/lib/python3/dist-packages/castellan/tests/unit/key_manager/test_key_manager.py
/usr/lib/python3/dist-packages/castellan/tests/unit/key_manager/test_migration_key_manager.py
/usr/lib/python3/dist-packages/castellan/tests/unit/key_manager/test_mock_key_manager.py
/usr/lib/python3/dist-packages/castellan/tests/unit/key_manager/test_not_implemented_key_manager.py