      author = models.OneToOneField(Author, models.CASCADE)
      books = models.ManyToManyField(Book, blank=True)
  
  
  @python_2_unicode_compatible
  class Reader(models.Model):
      name = models.CharField(max_length=50)
      books_read = models.ManyToManyField(Book, related_name='read_by')
  
      def __str__(self):
 
</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 
      author = models.OneToOneField(Author, models.CASCADE)
      books = models.ManyToManyField(Book, blank=True)
  
  

  class Reader(models.Model):
      name = models.CharField(max_length=50)
      books_read = models.ManyToManyField(Book, related_name='read_by')
  
      def __str__(self):
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
tests/prefetch_related/models.py