/usr/lib/python2.7/dist-packages/keyring-0.9.2.egg-info/requires.txt is in python-keyring 0.9.2-0ubuntu0.12.04.2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/keyring-0.9.2.egg-info/../../../../share/pyshared/keyring-0.9.2.egg-info/requires.txt