/usr/lib/python2.7/dist-packages/pychess/widgets/pydock/PyDockComposite.py is in pychess 0.12~beta3-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/pychess/widgets/pydock/../../../../../../share/pyshared/pychess/widgets/pydock/PyDockComposite.py