#!/usr/bin/env python
   #_*_coding:utf-8 _*_
  import sys
  import os
  import readline
  import rlcompleter

 import atexit
 readline.parse_and_bind('tab:complete')
 histfile=os.path.join(os.environ['HOME'],'.pythonhistory')

 try:
    readline.read_history_file(histfile)
 except IOError:
    pass
 atexit.register(readline.write_history_file, histfile)
 del os, histfile, readline, rlcompleter