import sys

import readline

import rlcompleter

import atexit

import os

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