/usr/lib/python2.7/dist-packages/ipapython/nsslib.py is in python-freeipa 2.1.4-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/ipapython/../../../../share/pyshared/ipapython/nsslib.py