/usr/lib/python2.7/dist-packages/lazr/batchnavigator/tests/test_z3batching.py is in python-lazr.batchnavigator 1.2.10-0ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/lazr/batchnavigator/tests/../../../../../../share/pyshared/lazr/batchnavigator/tests/test_z3batching.py