      def __str__(self):
          return self.name
  
  
  @python_2_unicode_compatible
  class Album(models.Model):
      band = models.ForeignKey(Band, models.CASCADE)
      name = models.CharField(max_length=100)
      cover_art = models.FileField(upload_to='albums')
      backside_art = MyFileField(upload_to='albums_back', null=True)
 
</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 Album(models.Model):
      band = models.ForeignKey(Band, models.CASCADE)
      name = models.CharField(max_length=100)
      cover_art = models.FileField(upload_to='albums')
      backside_art = MyFileField(upload_to='albums_back', null=True)
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
tests/admin_widgets/models.py