1. 保存路径：/usr/lib/python2.6/site-packages/tab/py

  2. 编写python脚本
    $ cat tab_enable.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



    开始调用
    >>> import tab_enable
    >>> import os
    >>> os.<Tab>