map_item_names.py

item_numbers = [2, 3, 5]
item_definitions = { 1: 'First item', 2: 'Second item', 3: 'Third item', 5: 'Fifth item'}


print(80 * '-')
print('Plain item names:')
items = map(lambda number: item_definitions[number], item_numbers)
print(', '.join(items))

print(80 * '-')
print('Item names with item numbers:')
items = map(lambda number: '{0}({1})'.format(item_definitions[number], number), item_numbers)
print(', '.join(items))

print(80 * '-')