linux下python使用tab补齐

1、创建文件：vi /root/.pystartup，代码如下：

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

 
2、执行如下命令：

echo "export PYTHONSTARTUP=~/.pystartup" >> ~/.bashrc
source /root/.bashrc