如何刷新sys.path? [英] How to refresh sys.path?

问题描述

以用户身份执行脚本时，我已经安装了一些软件包.这些软件包是第一个用户软件包，因此python在脚本运行之前没有将~/.local/lib/python2.7/site-packages添加到sys.path中.我想导入那些已安装的软件包.但是我不能，因为它们不在sys.path中.

I've installed some packages during the execution of my script as a user. Those packages were the first user packages, so python didn't add ~/.local/lib/python2.7/site-packages to the sys.path before script run. I want to import those installed packages. But I cannot because they are not in sys.path.

如何刷新sys.path?

我正在使用python 2.7.

I'm using python 2.7.

推荐答案

如

As explained in What sets up sys.path with Python, and when? sys.path is populated with the help of builtin site.py module.

因此，您只需要重新加载它即可.您不能一步一步完成它，因为名称空间中没有site.总结一下:

So you just need to reload it. You cannot it in one step because you don't have site in your namespace. To sum up:

import site
from importlib import reload
reload(site)

就是这样.

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