/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/ is in tryton-modules-sale-opportunity 3.4.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/configuration_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_employee_graph1.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_employee_graph2.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_employee_monthly_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_employee_open_start_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_employee_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_history_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_history_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_line_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_line_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_monthly_graph1.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_monthly_graph2.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_monthly_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/sale_opportunity/view/opportunity_tree.xml