/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/ is in tryton-modules-account-invoice 4.2.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/__init__.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/account.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/account.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/invoice.odt
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/invoice.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/invoice.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/bg.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/ca.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/cs.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/de.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/es.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/es_419.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/fr.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/hu_HU.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/it_IT.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/ja_JP.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/lo.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/lt.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/nl.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/pl.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/pt_BR.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/ru.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/sl.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/locale/zh_CN.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/party.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/party.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/payment_term.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/payment_term.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/tests/
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/tests/__init__.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/tests/scenario_invoice.rst
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/tests/scenario_invoice_alternate_currency.rst
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/tests/scenario_invoice_supplier.rst
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/tests/test_account_invoice.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/tests/tools.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/tryton.cfg
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/address_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/address_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/address_tree_sequence.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/credit_start_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/fiscalyear_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/invoice_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/invoice_line_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/invoice_line_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/invoice_line_tree_sequence.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/invoice_tax_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/invoice_tax_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/invoice_tax_tree_sequence.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/invoice_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/move_line_list_payment.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/move_line_list_to_pay.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/party_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/pay_ask_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/pay_start_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_line_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_line_list.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_line_list_sequence.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_line_relativedelta_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_line_relativedelta_list.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_line_relativedelta_list_sequence.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_test_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_test_result_list.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/payment_term_tree.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/period_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_invoice/view/print_warning_form.xml