/usr/lib/python2.7/dist-packages/bzr_builder-0.7.3.egg-info is in bzr-builder 0.7.3-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/../../../share/pyshared/bzr_builder-0.7.3.egg-info