old_contents: import authorizenet
  from django.db import models
  from django.utils.translation import ugettext_lazy as _
  
  from ...util.models import DeferredOneToOneField
  
  class AuthorizeNetPaymentBase(models.Model):
      cc_name = models.CharField(_('Name on Credit Card'), max_length=128)
      cc_number = models.CharField(_('Card Number'), max_length=32)
      cc_expiration = models.DateField(_('Exp. date'), null=True)
      cc_cvv2 = models.CharField(_('CVV2 Security Number'), max_length=4)
      response = models.ForeignKey(authorizenet.models.Response, null=True,
                                   blank=True, editable=False)
      order = DeferredOneToOneField('order', related_name='payment', editable=False)
  
      class Meta:
          abstract = True
  
      def cc_number_starred(self):
          value = '%s%s' % ((len(self.cc_number) - 4) * u'\u25cf', self.cc_number[-4:])
          value = ' '.join([value[i:i+4] for i in range(0, len(value), 4)])
          return value
      cc_number_starred.short_description = _('Card number')
  
new_contents: import authorizenet
  from django.db import models
  from django.utils.translation import ugettext_lazy as _
  
  from ....util.models import DeferredOneToOneField
  
  class AuthorizeNetPaymentBase(models.Model):
      cc_name = models.CharField(_('Name on Credit Card'), max_length=128)
      cc_number = models.CharField(_('Card Number'), max_length=32)
      cc_expiration = models.DateField(_('Exp. date'), null=True)
      cc_cvv2 = models.CharField(_('CVV2 Security Number'), max_length=4)
      response = models.ForeignKey(authorizenet.models.Response, null=True,
                                   blank=True, editable=False)
      order = DeferredOneToOneField('order', related_name='payment', editable=False)
  
      class Meta:
          abstract = True
  
      def cc_number_starred(self):
          value = '%s%s' % ((len(self.cc_number) - 4) * u'\u25cf', self.cc_number[-4:])
          value = ' '.join([value[i:i+4] for i in range(0, len(value), 4)])
          return value
      cc_number_starred.short_description = _('Card number')
  
subject: Fix import path