/usr/lib/python2.7/dist-packages/apptools-4.1.0.egg-info/requires.txt is in python-apptools 4.1.0-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/apptools-4.1.0.egg-info/../../../../share/pyshared/apptools-4.1.0.egg-info/requires.txt