def to_upper_case(s):
    return str(s).upper() # for  string uppercase

def print_iterator(it):
     for x in it:
       print(x, end=' ')
     print('')  # for new line

 map_iterator = map(to_upper_case, 'abc')
 print_iterator(map_iterator)

Output:
A B C 

# map() with tuple
tuple_iterator = map(to_upper_case, ('String', 'A') )
print_iterator(tuple_iterator)

Output:
STRING A 

# map() with List
list_iterator  = map(to_upper_case, ['list a', 'B', 'DD'] )
print_iterator(list_iterator)

tuple_iterator = tuple( map(to_upper_case, ['String', 'A'] ) )
print(tuple_iterator)

list_iterator = list( map(to_upper_case, ['String', 'A'] ) )
print(list_iterator)

set_iterator = set( map(to_upper_case, ['String', 'A'] ) )
print(set_iterator)

Output:
('STRING', 'A')
['STRING', 'A']
{'A', 'STRING'}

list_numbers = [1, 2, 3, 4]

map_iterator = map(lambda x: x * 2, list_numbers)
print_iterator(map_iterator)

Output:
2 4 6 8

  list_numbers = [1, 2, 3, 4]
    tuple_numbers = (5, 6, 7, 8)
    map_iterator = map(lambda x, y: x*y , list_numbers, tuple_numbers)
    print_iterator(map_iterator)

    Output:
    5 12 21 32