  
  # Whether to use the "ETag" header. This saves bandwidth but slows down performance.
  USE_ETAGS = False
  
  # People who get code error notifications.
  # In the format [('Full Name', 'email@example.com'), ('Full Name', 'anotheremail@example.com')]
 
</s> remove           appropriately.
 </s> add           appropriately. USE_ETAGS is deprecated in favor of
          ConditionalGetMiddleware.
# Deprecated (RemovedInDjango21Warning) in favor of ConditionalGetMiddleware
# which sets the ETag regardless of this setting.
  
  # Whether to use the "ETag" header. This saves bandwidth but slows down performance.
# Deprecated (RemovedInDjango21Warning) in favor of ConditionalGetMiddleware
# which sets the ETag regardless of this setting.
  USE_ETAGS = False
  
  # People who get code error notifications.
  # In the format [('Full Name', 'email@example.com'), ('Full Name', 'anotheremail@example.com')]
keep add keep keep keep keep
 Fixed #26447 -- Deprecated settings.USE_ETAGS in favor of ConditionalGetMiddleware. 
django/conf/global_settings.py