/usr/lib/python2.7/dist-packages/soya/blender2cal3d.py is in python-soya 0.15~rc1-10.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/soya/../../../../share/pyshared/soya/blender2cal3d.py