Create initial stock moves with proteus

Hi,

Following my post Create initial stock moves with proteus on a remote server
It was working with the resolution of issue: Format warning name indepentently of the platform (#10672) · Issues · Tryton / Tryton · GitLab
One missing thing, is to add ‘__lt__’ method in proteus script to allow sorting moves: Create initial stock moves with proteus on a remote server - #2 by maxx