pythonpathdemo. 用专门的项目说明掌握python的 PYTHONPATH的重要性；说明窗口会话临时环境变量和永久性环境变量区别；说明pythonpath的好处；说明pythonpath的妙用。学了PYTHONPATH 写几十个项目复用公共代码如虎添翼

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Audience

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