/usr/lib/python2.7/dist-packages/zope/app/pagetemplate/tests/test_nested.py is in python-zope.app.pagetemplate 3.11.2-0ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/zope/app/pagetemplate/tests/../../../../../../../share/pyshared/zope/app/pagetemplate/tests/test_nested.py