/usr/lib/python2.7/dist-packages/gsw-3.0.2.egg-info is in python-gsw 3.0.2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/../../../share/pyshared/gsw-3.0.2.egg-info
/usr/lib/python2.7/dist-packages/../../../share/pyshared/gsw-3.0.2.egg-info