long-ip-address-short.py

from __future__ import print_function
from random import randint

def random_address():
  retv = [str(randint(1,255)) for i in 'abcd']
  return '.'.join(retv)

addresses = [random_address() for i in range(15)]

def sort_key(k):  
  parts = k.split('.')
  retv = [int(i) for i in parts]
  print('k={}, parts={}\nretv={}\n'.
      format(k, parts, retv))
  return retv
  

addresses.sort(key=sort_key)

print(addresses)