$ sudo pip3 install numpy --proxy http://<ip>:<port>
例如:
$ pip3 install --upgrade pip --proxy http://10.144.1.10:8080
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: pip in ./.local/lib/python3.8/site-packages (21.1.1)
Collecting pip
Downloading pip-21.2.4-py3-none-any.whl (1.6 MB)
|████████████████████████████████| 1.6 MB 768 kB/s
Installing collected packages: pip
Attempting uninstall: pip
Found existing installation: pip 21.1.1
Uninstalling pip-21.1.1:
Successfully uninstalled pip-21.1.1
Successfully installed pip-21.2.4