      def get_by_natural_key(self, domain):
          return self.get(domain=domain)
  
  
  @python_2_unicode_compatible
  class Site(models.Model):
  
      domain = models.CharField(
          _('domain name'),
          max_length=100,
 
</s> remove @python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add 
      def get_by_natural_key(self, domain):
          return self.get(domain=domain)
  
  

  class Site(models.Model):
  
      domain = models.CharField(
          _('domain name'),
          max_length=100,
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
django/contrib/sites/models.py