/usr/lib/python3/ is in python3-zope.event 4.0.1-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/
/usr/lib/python3/dist-packages/zope.event-4.0.1-nspkg.pth
/usr/lib/python3/dist-packages/zope/
/usr/lib/python3/dist-packages/zope/event/
/usr/lib/python3/dist-packages/zope/event/tests.py
/usr/lib/python3/dist-packages/zope/event/__init__.py
/usr/lib/python3/dist-packages/zope.event-4.0.1.egg-info/
/usr/lib/python3/dist-packages/zope.event-4.0.1.egg-info/top_level.txt
/usr/lib/python3/dist-packages/zope.event-4.0.1.egg-info/not-zip-safe
/usr/lib/python3/dist-packages/zope.event-4.0.1.egg-info/dependency_links.txt
/usr/lib/python3/dist-packages/zope.event-4.0.1.egg-info/requires.txt
/usr/lib/python3/dist-packages/zope.event-4.0.1.egg-info/namespace_packages.txt
/usr/lib/python3/dist-packages/zope.event-4.0.1.egg-info/PKG-INFO
/usr/lib/python3/dist-packages/zope.event-4.0.1.egg-info/SOURCES.txt