align.py

def print_arr_right_aligned(arr):
    """ input: string array ['a', 'ab', 'abc']
        output: None. print with right aligned.
          a:
         ab:
        abc:
    """
    len_a = max(map(lambda x: len(x), arr))
    for i in arr:
        print("{0:>{1}}: ".format(i, len_a))