先安装所需要的依赖

sudo yum -y groupinstall "Development tools"
sudo 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
sudo yum install -y libffi-devel zlib1g-dev
sudo yum install zlib* -y
sudo yum gcc

下载python的安装包

wget https://www.python.org/ftp/python/3.9.8/Python-3.9.8.tar.xz

不想下3.9.8的版本的话可以去python下载地址这里面找对应版本的安装包

解压

tar -xvJf  Python-3.9.8.tar.xz

安装

cd Python-3.9.8
sudo ./configure --prefix=/usr/local/python3
sudo make
sudo make install
ln -s /usr/local/python3/bin/python3 /usr/local/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3

测试是否安装成功

python3 -V
pip3 -V