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  • python <tab>自动补全

    1.获取python目录【我使用的是64位ubuntu系统】

    [~$]python
    Python 2.7.3 (default, Apr 10 2013, 06:20:15) 
    [GCC 4.6.3] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import sys
    >>> sys.path
    ['', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', 
    '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', 
    '/usr/lib/python2.7/dist-packages/PIL', '/usr/lib/python2.7/dist-packages/gst-0.10', '/usr/lib/python2.7/dist-packages/gtk-2.0',
    '/usr/lib/python2.7/dist-packages/ubuntu-sso-client', '/usr/lib/python2.7/dist-packages/ubuntuone-client', 
    '/usr/lib/python2.7/dist-packages/ubuntuone-control-panel', '/usr/lib/python2.7/dist-packages/ubuntuone-couch', 
    '/usr/lib/python2.7/dist-packages/ubuntuone-installer', '/usr/lib/python2.7/dist-packages/ubuntuone-storage-protocol']
    >>> 
    


    从上面看出python在我电脑上的路径是  /usr/lib/python2.7



    2.切换至该目录写个startup.py的脚本,脚本目录就是处理python中<tab>事件,脚本内容如下


    #!/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.切换至自己主目录


    [/usr/lib/python2.7$]cd 
    [~$]vi .bashrc 
    


    4. 增加环境变量


    #for python
    export PYTHONSTARTUP=/usr/lib/python2.7/startup.py


    5.配置环境变量生效

    [~$]source .bashrc 


    PYTHONSTARTUP是什么东西呢?

    If this is the name of a readable file, the Python commands in that file are executed before the first prompt 
    is displayed in interactive mode.  The file is executed in the same name space where interactive commands are
    executed so that  objects defined  or  imported in it can be used without qualification in the interactive session.  
    You can also change the prompts sys.ps1 and sys.ps2 in this file.







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  • 原文地址:https://www.cnblogs.com/pangblog/p/3327461.html
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