/usr/lib/python2.7/dist-packages/zope.ptresource-3.9.0.egg-info/not-zip-safe is in python-zope.ptresource 3.9.0-0ubuntu5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/zope.ptresource-3.9.0.egg-info/../../../../share/pyshared/zope.ptresource-3.9.0.egg-info/not-zip-safe