CentOS8 Linux安装Python3 pip

安装环境准备：

yum update -y

安装 gcc和make插件

yum install gcc gcc-c++ 
yum -y install gcc automake autoconf libtool make 
yum groupinstall -y 'Development Tools'
yum install -y gcc openssl-devel bzip2-devel libffi-devel

下载和编译python

https://www.python.org/ftp/python/

wget https://www.python.org/ftp/python/3.9.7/Python-3.9.7.tgz

1.解压缩

tar -zxvf Python-3.9.7.tgz 

2.用脚本检验整个编译环境

cd Python-3.9.7
./configure prefix=/usr/local/python3 --enable-optimizations

3.make命令编译安装

make && make install

4.修改环境变量

export PATH=$PATH:/usr/local/python3/bin/

5.安装PIP

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python3.9 get-pip.py
测试 #python -V