1.安装编译相关工具

yum -y groupinstall "Development tools"
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
yum install libffi-devel -y

2.下载安装包解压

wget https://www.python.org/ftp/python/3.8.7/Python-3.8.7.tar.xz

tar -xvJf  Python-3.8.7.tar.xz

3.编译安装python

mkdir /usr/local/python3.8   #创建编译安装目录

cd Python-3.8.7

./configure --prefix=/usr/local/python3.8

make && make install

4.创建软连接

ln -s /usr/local/python3.8/bin/python3 /usr/local/bin/python3

ln -s /usr/local/python3.8/bin/pip3 /usr/local/bin/pip3

5.验证是否成功

python3 -V

pip3 -V