in our examples so farwe've already seen many of the built-in python data structures in action you've probably also covered many of them in introductory books or tutorials in this we'll be discussing the object-oriented features of these data structureswhen they should be used instead of regular classand when they should not be used in particularwe'll be coveringtuples and named tuples dictionaries lists and sets how and why to extend built-in objects three types of queues empty objects let' start with the most basic python built-inone that we've seen many times alreadythe one that we've extended in every class we have createdthe object technicallywe can instantiate an object without writing subclasso object( traceback (most recent call last)file ""line in attributeerror'objectobject has no attribute '