def make_item(pricelist):
    if pricelist.prod_id in prep_items:
        item = prep_items[pricelist.prod_id]
    else:
        item = ProdItem()
        item.prod_id = pricelist.prod_id
        item.multiplier = pricelist.multiplicador
        item.unit = pricelist.unidad
    return item
def make_item(pricelist):
    item = ProdItem()
    item.prod_id = pricelist.prod_id
    item.multiplier = pricelist.multiplicador
    item.unit = pricelist.unidad
    return item