/usr/lib/python2.7/ is in python-zope.app.error 3.5.3-0ubuntu4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/zope/
/usr/lib/python2.7/dist-packages/zope/app/
/usr/lib/python2.7/dist-packages/zope/app/error/
/usr/lib/python2.7/dist-packages/zope/app/error/browser/
/usr/lib/python2.7/dist-packages/zope.app.error-3.5.3.egg-info/
/usr/lib/python2.7/dist-packages/zope/app/error/__init__.py
/usr/lib/python2.7/dist-packages/zope/app/error/interfaces.py
/usr/lib/python2.7/dist-packages/zope/app/error/tests.py
/usr/lib/python2.7/dist-packages/zope/app/error/error.py
/usr/lib/python2.7/dist-packages/zope/app/error/README.txt
/usr/lib/python2.7/dist-packages/zope/app/error/configure.zcml
/usr/lib/python2.7/dist-packages/zope/app/error/browser/__init__.py
/usr/lib/python2.7/dist-packages/zope/app/error/browser/configure.zcml
/usr/lib/python2.7/dist-packages/zope/app/error/browser/error.gif
/usr/lib/python2.7/dist-packages/zope/app/error/browser/error.pt
/usr/lib/python2.7/dist-packages/zope/app/error/browser/error_config.pt
/usr/lib/python2.7/dist-packages/zope/app/error/browser/error_service.gif
/usr/lib/python2.7/dist-packages/zope/app/error/browser/errorentry.pt
/usr/lib/python2.7/dist-packages/zope/app/error/browser/texttbentry.pt
/usr/lib/python2.7/dist-packages/zope.app.error-3.5.3.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/zope.app.error-3.5.3.egg-info/top_level.txt
/usr/lib/python2.7/dist-packages/zope.app.error-3.5.3.egg-info/SOURCES.txt
/usr/lib/python2.7/dist-packages/zope.app.error-3.5.3.egg-info/namespace_packages.txt
/usr/lib/python2.7/dist-packages/zope.app.error-3.5.3.egg-info/not-zip-safe
/usr/lib/python2.7/dist-packages/zope.app.error-3.5.3.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/zope.app.error-3.5.3.egg-info/requires.txt
/usr/lib/python2.7/dist-packages/zope.app.error-3.5.3-nspkg.pth