/usr/lib/pyshared/python2.7/PyKDE4/plasma.so is in python-kde4 4:4.8.2-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/pyshared/python2.7/PyKDE4/../../../python2.7/dist-packages/PyKDE4/plasma.so