/usr/lib/ is in python3-apt 0.8.3ubuntu7.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/
/usr/lib/python3/dist-packages/
/usr/lib/python3/dist-packages/apt_pkg.cpython-32mu.so
/usr/lib/python3/dist-packages/aptsources/
/usr/lib/python3/dist-packages/aptsources/distro.py
/usr/lib/python3/dist-packages/aptsources/__init__.py
/usr/lib/python3/dist-packages/aptsources/distinfo.py
/usr/lib/python3/dist-packages/aptsources/sourceslist.py
/usr/lib/python3/dist-packages/apt_inst.cpython-32mu.so
/usr/lib/python3/dist-packages/python_apt-0.8.3ubuntu7.egg-info
/usr/lib/python3/dist-packages/apt/
/usr/lib/python3/dist-packages/apt/cache.py
/usr/lib/python3/dist-packages/apt/package.py
/usr/lib/python3/dist-packages/apt/utils.py
/usr/lib/python3/dist-packages/apt/cdrom.py
/usr/lib/python3/dist-packages/apt/debfile.py
/usr/lib/python3/dist-packages/apt/__init__.py
/usr/lib/python3/dist-packages/apt/deprecation.py
/usr/lib/python3/dist-packages/apt/progress/
/usr/lib/python3/dist-packages/apt/progress/gtk2.py
/usr/lib/python3/dist-packages/apt/progress/base.py
/usr/lib/python3/dist-packages/apt/progress/text.py
/usr/lib/python3/dist-packages/apt/progress/old.py
/usr/lib/python3/dist-packages/apt/progress/__init__.py