print( isdisjoint( ) )issubset()this method returns true if all elements of one set is present in second set syntaxset issubset(set ={ , , ={ , , , print( issubset( )dictionariespython dictionary is an unordered collection of elements and it is mutable we can store values as pair of keys and values represented by dict(or {keys in dictionary are unique and they are immutable(strings,numbers,tuplescreating dictionary ={print(dd ={ :'ay', :'aa', :' 'print( ={' ': ,' ': ,' ': print( ={ : , :' ', :[ , , ], :( , , )#mixed dictoinary print( ={[ , , ]: ,' ': print( #error-keys are of immutable nature =dict([(' ', ),(' ', ),(' ', )]print(ddictionary operations )index:it is used to find the value at particular index syntaxdictname[index/keyexd={' ': ,' ': ,' ': print( [' ']#output: )len:it is used to find length of dictionary syntaxlen(dictnameexd={' ': ,' ': ,' ': print(len( )#output: )iteration:iteration is used to access the elements syntaxfor in dictnameexs={ : , : , : , : for in sbv prasanthi dept of cse page