map / foreach

python.py

>>> x = ['a', 'b', 'c']
>>> x
['a', 'b', 'c']
>>> list(map(lambda z: z+'-peen' , x))
['a-peen', 'b-peen', 'c-peen']
>>> for z in x:
...     print(z+'-peen')
...
a-peen
b-peen
c-peen
>>>