old_contents: # -*- coding: utf-8 -*-
  
  from django.conf import settings
  from shipping.shipping_backend_base import BaseShippingBackend
  
  class FlatRateShipping(BaseShippingBackend):
      '''
      This is just an example of a possible flat-rate shipping module, that 
      charges a flat rate defined in settings.SHOP_SHIPPING_FLAT_RATE
      '''
      def process_order(self,order):
          order.shipping_cost = settings.SHOP_SHIPPING_FLAT_RATE
new_contents: # -*- coding: utf-8 -*-
  
  from django.conf import settings
  from shop.shipping.shipping_backend_base import BaseShippingBackend
  
  class FlatRateShipping(BaseShippingBackend):
      '''
      This is just an example of a possible flat-rate shipping module, that 
      charges a flat rate defined in settings.SHOP_SHIPPING_FLAT_RATE
      '''
      def process_order(self,order):
          order.shipping_cost = settings.SHOP_SHIPPING_FLAT_RATE
subject: fix imports