/usr/lib/ is in gnome-codec-install 0.4.7+nmu1ubuntu3.
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/GnomeCodecInstall/
/usr/lib/python2.7/dist-packages/gnome_app_install-0.4.7_nmu1ubuntu3.egg-info/
/usr/lib/python2.7/dist-packages/GnomeCodecInstall/MainWindow.py
/usr/lib/python2.7/dist-packages/GnomeCodecInstall/Main.py
/usr/lib/python2.7/dist-packages/GnomeCodecInstall/__init__.py
/usr/lib/python2.7/dist-packages/GnomeCodecInstall/PackageWorker.py
/usr/lib/python2.7/dist-packages/gnome_app_install-0.4.7_nmu1ubuntu3.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/gnome_app_install-0.4.7_nmu1ubuntu3.egg-info/top_level.txt
/usr/lib/python2.7/dist-packages/gnome_app_install-0.4.7_nmu1ubuntu3.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/gnome_app_install-0.4.7_nmu1ubuntu3.egg-info/SOURCES.txt