/usr/lib/python2.7/dist-packages/softwareproperties/__init__.py is in python-software-properties 0.82.7.5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/softwareproperties/../../../../share/pyshared/softwareproperties/__init__.py