      def __str__(self):
          return 'UserStatResults, results = %s' % (self.results,)
  
  
  @python_2_unicode_compatible
  class UserStat(models.Model):
      user = models.OneToOneField(User, models.CASCADE, primary_key=True)
      posts = models.IntegerField()
      results = models.ForeignKey(UserStatResult, models.CASCADE)
  
 
</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 __str__(self):
          return 'UserStatResults, results = %s' % (self.results,)
  
  

  class UserStat(models.Model):
      user = models.OneToOneField(User, models.CASCADE, primary_key=True)
      posts = models.IntegerField()
      results = models.ForeignKey(UserStatResult, models.CASCADE)
  
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
tests/select_related_onetoone/models.py