/usr/share/pyshared/trytond/ is in tryton-modules-purchase 3.0.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/trytond/modules/
/usr/share/pyshared/trytond/modules/purchase/
/usr/share/pyshared/trytond/modules/purchase/__init__.py
/usr/share/pyshared/trytond/modules/purchase/configuration.py
/usr/share/pyshared/trytond/modules/purchase/configuration.xml
/usr/share/pyshared/trytond/modules/purchase/invoice.py
/usr/share/pyshared/trytond/modules/purchase/locale/
/usr/share/pyshared/trytond/modules/purchase/locale/bg_BG.po
/usr/share/pyshared/trytond/modules/purchase/locale/ca_ES.po
/usr/share/pyshared/trytond/modules/purchase/locale/cs_CZ.po
/usr/share/pyshared/trytond/modules/purchase/locale/de_DE.po
/usr/share/pyshared/trytond/modules/purchase/locale/es_AR.po
/usr/share/pyshared/trytond/modules/purchase/locale/es_CO.po
/usr/share/pyshared/trytond/modules/purchase/locale/es_ES.po
/usr/share/pyshared/trytond/modules/purchase/locale/fr_FR.po
/usr/share/pyshared/trytond/modules/purchase/locale/nl_NL.po
/usr/share/pyshared/trytond/modules/purchase/locale/ru_RU.po
/usr/share/pyshared/trytond/modules/purchase/locale/sl_SI.po
/usr/share/pyshared/trytond/modules/purchase/party.xml
/usr/share/pyshared/trytond/modules/purchase/product.py
/usr/share/pyshared/trytond/modules/purchase/product.xml
/usr/share/pyshared/trytond/modules/purchase/purchase.odt
/usr/share/pyshared/trytond/modules/purchase/purchase.py
/usr/share/pyshared/trytond/modules/purchase/purchase.xml
/usr/share/pyshared/trytond/modules/purchase/stock.py
/usr/share/pyshared/trytond/modules/purchase/stock.xml
/usr/share/pyshared/trytond/modules/purchase/tests/
/usr/share/pyshared/trytond/modules/purchase/tests/__init__.py
/usr/share/pyshared/trytond/modules/purchase/tests/scenario_purchase.rst
/usr/share/pyshared/trytond/modules/purchase/tests/test_purchase.py
/usr/share/pyshared/trytond/modules/purchase/tryton.cfg
/usr/share/pyshared/trytond/modules/purchase/view/
/usr/share/pyshared/trytond/modules/purchase/view/configuration_form.xml
/usr/share/pyshared/trytond/modules/purchase/view/handle_invoice_exception_ask_form.xml
/usr/share/pyshared/trytond/modules/purchase/view/handle_shipment_exception_ask_form.xml
/usr/share/pyshared/trytond/modules/purchase/view/move_form.xml
/usr/share/pyshared/trytond/modules/purchase/view/move_list_shipment.xml
/usr/share/pyshared/trytond/modules/purchase/view/product_list_purchase_line.xml
/usr/share/pyshared/trytond/modules/purchase/view/product_supplier_form.xml
/usr/share/pyshared/trytond/modules/purchase/view/product_supplier_price_form.xml
/usr/share/pyshared/trytond/modules/purchase/view/product_supplier_price_tree.xml
/usr/share/pyshared/trytond/modules/purchase/view/product_supplier_tree.xml
/usr/share/pyshared/trytond/modules/purchase/view/product_supplier_tree_sequence.xml
/usr/share/pyshared/trytond/modules/purchase/view/purchase_form.xml
/usr/share/pyshared/trytond/modules/purchase/view/purchase_line_form.xml
/usr/share/pyshared/trytond/modules/purchase/view/purchase_line_tree.xml
/usr/share/pyshared/trytond/modules/purchase/view/purchase_line_tree_sequence.xml
/usr/share/pyshared/trytond/modules/purchase/view/purchase_tree.xml
/usr/share/pyshared/trytond/modules/purchase/view/template_form.xml
/usr/share/pyshared/trytond/modules/purchase/view/template_tree.xml
/usr/share/pyshared/trytond_purchase-3.0.0.egg-info/PKG-INFO
/usr/share/pyshared/trytond_purchase-3.0.0.egg-info/dependency_links.txt
/usr/share/pyshared/trytond_purchase-3.0.0.egg-info/entry_points.txt
/usr/share/pyshared/trytond_purchase-3.0.0.egg-info/not-zip-safe
/usr/share/pyshared/trytond_purchase-3.0.0.egg-info/requires.txt
/usr/share/pyshared/trytond_purchase-3.0.0.egg-info/top_level.txt