/usr/lib/pyshared/python2.7/PyMca/FastEdf.so is in pymca 4.5.0-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/pyshared/python2.7/PyMca/../../../python2.7/dist-packages/PyMca/FastEdf.so
/usr/lib/pyshared/python2.7/PyMca/../../../python2.7/dist-packages/PyMca/FastEdf.so