/usr/lib/python2.7/dist-packages/oauth2client-1.2.egg-info/PKG-INFO is in python-oauth2client 1.2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/oauth2client-1.2.egg-info/../../../../share/pyshared/oauth2client-1.2.egg-info/PKG-INFO