print(mixed_list['this' 'is' ' ' 'mixed' 'list'accessing items in python list each item of list is assigned number that is the index or position of that number indexing always start from zerothe second index is one and so forth to access items in listwe can use these index numbers within square bracket observe the following code for examplemixed_list ['this' 'is' ' ' 'mixed' 'list'to access the first item of the list mixed_list[ 'thisto access the th item mixed_list[ to access the last item of the list mixed_list[- 'listempty objects empty objects are the simplest and most basic python built-in types we have used them multiple times without noticing and have extended it to every class we have created the main purpose to write an empty class is to block something for time being and later extend and add behavior to it to add behavior to class means to replace data structure with an object and change all references to it so it is important to check the datawhether it is an object in disguisebefore you create anything observe the following code for better understanding#empty objects obj object(obj traceback (most recent call last)file ""line in obj attributeerror'objectobject has no attribute '