def cost(self):
        return Decimal("0.00")
Set the value of an attribute, firing history events.
dataset/ETHPy150Open dokterbob/satchmo/satchmo/apps/shipping/modules/no/shipper.py/Shipper.cost--crossover with--dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/orm/attributes.py/set_attribute