/usr/lib/python2.7/dist-packages/zope.index-3.6.4.egg-info/PKG-INFO is in python-zope.index 3.6.4-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/zope.index-3.6.4.egg-info/../../../../share/pyshared/zope.index-3.6.4.egg-info/PKG-INFO