I recently created an application with PySide2 to connect to trytond.
My idea is to use in special cases and generate views with qml files(dynamically) and take advantage of qt libraries.
This application is not a client in itself. It is a platform or base template for each developer to design their own visualization or tabs.
Maybe later I will simplify some things. perhaps advanced knowledge with tryton (json-rpc) is required at the moment.
You can find the code here: