              s.delete()  # Clear sessions with no data.
          return s
  
  
  @python_2_unicode_compatible
  class AbstractBaseSession(models.Model):
      session_key = models.CharField(_('session key'), max_length=40, primary_key=True)
      session_data = models.TextField(_('session data'))
      expire_date = models.DateTimeField(_('expire date'), db_index=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 
              s.delete()  # Clear sessions with no data.
          return s
  
  

  class AbstractBaseSession(models.Model):
      session_key = models.CharField(_('session key'), max_length=40, primary_key=True)
      session_data = models.TextField(_('session data'))
      expire_date = models.DateTimeField(_('expire date'), db_index=True)
  
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
django/contrib/sessions/base_session.py