/usr/lib/python2.7/dist-packages/zope/app/appsetup/product.txt is in python-zope.app.appsetup 3.14.0-0ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/zope/app/appsetup/../../../../../../share/pyshared/zope/app/appsetup/product.txt