/usr/lib/python2.7/dist-packages/guiqwt/baseplot.py is in python-guiqwt 2.1.6-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/guiqwt/../../../../share/pyshared/guiqwt/baseplot.py