1、先安装python3相关依赖
yum -y install gcc
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
找到要安装的python3 具体版本
去官网找对应的python版本，我这里下载了3.9.12
image.png
3. 下载python3 源码
F12查看源码，获取下载网址
wget https://www.python.org/ftp/python/3.9.12/Python-3.9.12.tgz
4、解压
tar -zxvf Python-3.9.12.tgz
5、构建
cd Python-3.9.12
# 设置安装路径
./configure --prefix=/usr/local/python3.9
# 安装python3.9
make && make install
6、配置全局命令
# 设置软链接
sudo ln -s /usr/local/python3.9/bin/python3.9 /usr/bin/python39
sudo ln -s /usr/local/python3.9/bin/pip3.9 /usr/bin/pip39
# 查看版本
python39 -V
