原文： https://blog.csdn.net/weixin_39465823/article/details/103111263
1，安装pip3
sudo apt install python3-pip
验证安装是否成功
pip3 –version
guoyz@debian:~/pip-9.0.1$ pip3 --version
pip 18.1 from /usr/lib/python3/dist-packages/pip (python 3.7)
然后安装构建python 模块所需的开发工具，
sudo apt install build-essential python3-dev python3-setuptools
2，新建pip.conf文件
guoyanzhang@debian:~$ pwd
/home/guoyanzhang
guoyanzhang@debian:~$ mkdir .pip
guoyanzhang@debian:~$ vim .pip/pip.conf
添加内容：
[global]
index-url=http://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host=mirrors.aliyun.com
参考：https://www.cnblogs.com/yanxiatingyu/p/10160712.html
ubuntu 下安装pip3
https://www.cnblogs.com/yanxiatingyu/p/10160712.html