title: How to append lists in a dictionary in Python?
body: <p>Hey everyone this code is working fine just one thing to deal with. It overwrites the multiple entries against a key. I need to avoid the overwriting and to save all those entries. Can you help me in this please? </p>
  
  <pre><code>#!/usr/bin/python
  
  import sys
  import fileinput
  
  #trys to create dictionary from african country list
  dic = {}
  
  for line in sys.stdin:
      lst = line.split('|')
      links = lst[4].split()
      new=links[0] + ' ' + links[len(links)-1]
      dic[new]=lst[4] # WARNING: overwrites multiple entriess at the moment! :)
  
  for newline in fileinput.input('somefile.txt'):
      asn = newline.split()
      new = asn[0] + ' ' + asn[1]
      if new in dic:
              print "found from " + asn[0] + " to " + asn[1]
              print dic[new]
  </code></pre>
  
  <p>Note: Sys.stdin takes a string in the following format;
  1.0.0.0/24|US|158.93.182.221|GB|7018 1221 3359 3412 2543 1873</p>