# set declaration myset = set() # dict declaration mydict = dict() another_dict = {} # printing type and content of a list and a set print(str(type(myset)) + " -> " + str(myset)) print(str(type(mydict)) + " -> " + str(mydict)) # add an element to set myset.add(5) # add multiple elements to set myset.update([1, 2, 3]) # duplicate element added to a set myset.add(3) # membership in sets print(5 in myset)