問題描述
我在以用戶身份執行腳本的過程中安裝了一些軟件包.這些包是第一個用戶包，所以 python 在腳本運行之前沒有將 ~/.local/lib/python2.7/site-packages 添加到 sys.path.我想導入那些已安裝的軟件包.但我不能，因為它們不在 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?
我使用的是 python 2.7.
I'm using python 2.7.
推薦答案
如 什么時候用 Python 設置 sys.path，什么時候? sys.path 在內置 site.py 模塊的幫助下填充.
As explained in What sets up sys.path with Python, and when? sys.path is populated with the help of builtin site.py module.
所以你只需要重新加載它.您不能一步完成，因為您的命名空間中沒有 site.總結一下:
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)
就是這樣.
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