      def __str__(self):
          return self.name
  
  
  @python_2_unicode_compatible
  class Article(models.Model):
      headline = models.CharField(max_length=50)
      pub_date = models.DateTimeField()
      primary_categories = models.ManyToManyField(Category, related_name='primary_article_set')
      secondary_categories = models.ManyToManyField(Category, related_name='secondary_article_set')
 
</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 self.name
  
  

  class Article(models.Model):
      headline = models.CharField(max_length=50)
      pub_date = models.DateTimeField()
      primary_categories = models.ManyToManyField(Category, related_name='primary_article_set')
      secondary_categories = models.ManyToManyField(Category, related_name='secondary_article_set')
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
tests/m2m_multiple/models.py