gistfile1.py

            try:
                attr_id = items['item']['attr_id']
                attribute = Attribute.objects.get(productid=prods.id,id=attr_id)
                total_order += attribute.unit_price * int(quantity)
                items[item]['price'] = attribute.unit_price
            except Attribute.DoesNotExist:
                total_order += prods.price * int(quantity)
                items[item]['price'] = prods.price
            except TypeError:
                attr_id = items['item']['attr_id']
                attribute = Attribute.objects.get(productid=prods.id,id=attr_id)
                items['attribute'] = attribute.label+attribute.value+attribute+unit 

                total_order += prods.price * int(quantity)
                items[item]['price'] = prods.price
            finally :
                total_order += prods.price * int(quantity)
                items[item]['price'] = prods.price