      def get_queryset(self):
          return super(FastCarManager, self).get_queryset().filter(top_speed__gt=150)
  
  
  @python_2_unicode_compatible
  class Car(models.Model):
      name = models.CharField(max_length=10)
      mileage = models.IntegerField()
      top_speed = models.IntegerField(help_text="In miles per hour.")
      cars = models.Manager()
 
</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_queryset(self):
          return super(FastCarManager, self).get_queryset().filter(top_speed__gt=150)
  
  

  class Car(models.Model):
      name = models.CharField(max_length=10)
      mileage = models.IntegerField()
      top_speed = models.IntegerField(help_text="In miles per hour.")
      cars = models.Manager()
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
tests/custom_managers/models.py