/usr/lib/python2.7/dist-packages/zope.app.generations-3.6.1.egg-info/dependency_links.txt is in python-zope.app.generations 3.6.1-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/zope.app.generations-3.6.1.egg-info/../../../../share/pyshared/zope.app.generations-3.6.1.egg-info/dependency_links.txt