/usr/lib/python2.7/dist-packages/zope/authentication/principalterms.txt is in python-zope.authentication 3.7.1-3fakesync1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/zope/authentication/../../../../../share/pyshared/zope/authentication/principalterms.txt