old_contents: import pickle
  l = [1, 2, 3]
  doc = open("pickle", "w") 
  pickle.dump(l, doc)
  
new_contents: from urllib.parse import urlparse
  import pickle
  import os
  from time import time
  
  
  time = time()
  hostname = urlparse("http://www.iitr.ac.in/hi/departments/DPT/pages/Research+Publications.html").netloc
  abs_path = hostname+"/"+str(time)+".p"
  if not os.path.exists(hostname):
      os.makedirs(hostname)
  doc = open(abs_path, "wb")
  print(hostname)
  l = [1, 2, 3]
  pickle.dump(l, doc)
  doc.close()
  l = pickle.load(open(abs_path, "rb"))
  print(l)
  
subject: Store temp