/usr/lib/python2.7/dist-packages/trytond/ is in tryton-modules-sale-credit-limit 4.2.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/trytond/modules/
/usr/lib/python2.7/dist-packages/trytond/modules/sale_credit_limit/
/usr/lib/python2.7/dist-packages/trytond/modules/sale_credit_limit/__init__.py
/usr/lib/python2.7/dist-packages/trytond/modules/sale_credit_limit/party.py
/usr/lib/python2.7/dist-packages/trytond/modules/sale_credit_limit/sale.py
/usr/lib/python2.7/dist-packages/trytond/modules/sale_credit_limit/tests/
/usr/lib/python2.7/dist-packages/trytond/modules/sale_credit_limit/tests/__init__.py
/usr/lib/python2.7/dist-packages/trytond/modules/sale_credit_limit/tests/test_sale_credit_limit.py
/usr/lib/python2.7/dist-packages/trytond/modules/sale_credit_limit/tryton.cfg
/usr/lib/python2.7/dist-packages/trytond_sale_credit_limit-4.2.0.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/trytond_sale_credit_limit-4.2.0.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/trytond_sale_credit_limit-4.2.0.egg-info/entry_points.txt
/usr/lib/python2.7/dist-packages/trytond_sale_credit_limit-4.2.0.egg-info/not-zip-safe
/usr/lib/python2.7/dist-packages/trytond_sale_credit_limit-4.2.0.egg-info/requires.txt
/usr/lib/python2.7/dist-packages/trytond_sale_credit_limit-4.2.0.egg-info/top_level.txt