/usr/lib/python2.7/dist-packages/pbr/tests/ is in python-pbr 3.1.1-3ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/pbr/tests/__init__.py
/usr/lib/python2.7/dist-packages/pbr/tests/base.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_commands.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_core.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_files.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_hooks.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_integration.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_packaging.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_pbr_json.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_setup.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_util.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_version.py
/usr/lib/python2.7/dist-packages/pbr/tests/test_wsgi.py
/usr/lib/python2.7/dist-packages/pbr/tests/util.py