大家在刚使用Linux过程中接触python的话是不能用tab补全的，这让初学者很困惑，所以我在网上整理了一下过程简单来给大家讲解。

  1. 查看python安装路径：

    >>> import sys
                >>> sys.path
                ['', '/usr/lib64/python26.zip', '/usr/lib64/python2.6', '/usr/lib64/python2.6/plat-linux2','/usr/lib64/python2.6/lib-tk', '/usr/lib64/python2.6/lib-old', '/usr/lib64/python2.6/lib-dynload', '/usr/lib64/python2.6/site-packages', '/usr/lib/python2.6/site-packages']

 2. 进入python目录下写一个小脚本：

[root@python python2.6]# vim startup.py

#!/usr/bin/python 

# python startup file

    import sys 

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

    3. 最后再设置开机自动导入脚本：

[root@python python2.6]# cat ~/.bashrc

export PYTHONSTARTUP=/usr/lib64/python2.6/startup.py

     4. 重启系统就可以了