/usr/lib/python2.7/dist-packages/EnthoughtBase-3.1.0-py2.6-nspkg.pth is in python-enthoughtbase 3.1.0-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/../../../share/pyshared/EnthoughtBase-3.1.0-py2.6-nspkg.pth