Create initial stock moves with proteus on a remote server

I solve a first problem:

Model class in Proteus has not __lt__implemented.

proteus: 7ab46d3e2b4d /proteus/init.py#l792

...
    def __lt__(self, other):
        if isinstance(other, Model):
            return ((self.__class__.__name__, self.id)
                  < (other.__class__.__name__, other.id))
        return NotImplemented
...

Anyway, the key generated in my script is not the same as the warning key, so i still get an error and my moves are not done.