/usr/lib/pyshared/python2.6/_passfd.so is in python-passfd 0.2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/pyshared/python2.6/../../python2.6/dist-packages/_passfd.so
/usr/lib/pyshared/python2.6/../../python2.6/dist-packages/_passfd.so