/usr/lib/python2.7/dist-packages/wimpiggy/test_util.py is in python-wimpiggy 0.0.7.36+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/wimpiggy/../../../../share/pyshared/wimpiggy/test_util.py