/usr/lib/python3/ is in python3-aptdaemon 1.1.1-1ubuntu5.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/
/usr/lib/python3/dist-packages/aptdaemon/
/usr/lib/python3/dist-packages/aptdaemon/crash.py
/usr/lib/python3/dist-packages/aptdaemon/policykit1.py
/usr/lib/python3/dist-packages/aptdaemon/logger.py
/usr/lib/python3/dist-packages/aptdaemon/lock.py
/usr/lib/python3/dist-packages/aptdaemon/enums.py
/usr/lib/python3/dist-packages/aptdaemon/core.py
/usr/lib/python3/dist-packages/aptdaemon/debconf.py
/usr/lib/python3/dist-packages/aptdaemon/console.py
/usr/lib/python3/dist-packages/aptdaemon/progress.py
/usr/lib/python3/dist-packages/aptdaemon/worker.py
/usr/lib/python3/dist-packages/aptdaemon/__init__.py
/usr/lib/python3/dist-packages/aptdaemon/client.py
/usr/lib/python3/dist-packages/aptdaemon/errors.py
/usr/lib/python3/dist-packages/aptdaemon/networking.py
/usr/lib/python3/dist-packages/aptdaemon/config.py
/usr/lib/python3/dist-packages/aptdaemon/utils.py
/usr/lib/python3/dist-packages/aptdaemon/loop.py