/usr/lib/ is in python-testing.mysqld 1.4.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/testing/
/usr/lib/python2.7/dist-packages/testing/mysqld.py
/usr/lib/python2.7/dist-packages/testing.mysqld-1.4.0-nspkg.pth
/usr/lib/python2.7/dist-packages/testing.mysqld-1.4.0.egg-info/
/usr/lib/python2.7/dist-packages/testing.mysqld-1.4.0.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/testing.mysqld-1.4.0.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/testing.mysqld-1.4.0.egg-info/namespace_packages.txt
/usr/lib/python2.7/dist-packages/testing.mysqld-1.4.0.egg-info/requires.txt
/usr/lib/python2.7/dist-packages/testing.mysqld-1.4.0.egg-info/top_level.txt