/usr/lib/python2.7/dist-packages/zope/error/error.py is in python-zope.error 3.7.2-0ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/zope/error/../../../../../share/pyshared/zope/error/error.py