1、下载 python

      https://www.python.org/downloads/source/

2、安装准备

     1）rpm -qa|grep openssl

          yum install openssl-devel -y

      2）yum install libffi-devel -y

      3）安装libz

3、安装

tar -zxvf Python-3.8.1.tgz

  cd Python-3.8.1

./configure --with-ssl

make && make install

4、pip3 install   xxx