/usr/lib/python2.7/dist-packages/trytond/modules/stock/internal_shipment.odt is in tryton-modules-stock 2.2.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/trytond/modules/stock/../../../../../../share/pyshared/trytond/modules/stock/internal_shipment.odt