python tab键自动补全

#!/usr/bin/python

import os

import readline

import rlcompleter

import atexit

import os

# tab completion

readline.parse_and_bind('tab: complete')

# history file

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