new_contents: ip_addr = ['10','0','20','1']
  ip_addr2 = ['10','0','21','1']
  ip_addr3 = ['10','0','22','1']
  
  
  address_book = [[ip_addr], [ip_addr2], [ip_addr3]]
  
  for list in address_book:
      for x in list:
          print x
  
  
subject: test added pynet_dev/address_book.py