/usr/lib/python2.7/dist-packages/configshell/prefs.py is in python-configshell 1.6.1~g020d540-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/configshell/../../../../share/pyshared/configshell/prefs.py