/usr/lib/python2.7/dist-packages/zope.interface-3.6.1.egg-info/not-zip-safe is in python-zope.interface 3.6.1-1ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/zope.interface-3.6.1.egg-info/../../../../share/pyshared/zope.interface-3.6.1.egg-info/not-zip-safe