/usr/lib/python2.7/dist-packages/txzookeeper/utils.py is in python-txzookeeper 0.9.5-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/txzookeeper/../../../../share/pyshared/txzookeeper/utils.py