We add the flake8 configuration used so we ensure everyone uses the same.
We remove the usage of __all__ for non public API.
When possible, we rationalize the class name according to its __name__ and module.
issue9082
review297061002
This can happen if all products from incoming moves are not in the inventory
moves. For example, if the quantity of an incoming move is set to zero.
issue6705
review43391002