python解释器安装：

python3.8安装

下载python软件

wget https://www.python.org/ftp/python/3.8.2/Python-3.8.2.tgz

创建目录

mkdir -p /usr/local/python3

解压

tar -zxvf Python-3.8.2.tgz

yum install  gcc -y

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 libffi-devel

3.7 版本之后需要 libffi-devel、zlib

安装即可：
yum install libffi-devel -y
yum install zlib*

cd Python-3.8.2

./configure --with-ssl --prefix=/usr/local/python3 #/usr/local/python3 为上面步骤创建的目录

make

make install

检查 python3 的编译器：/usr/local/python3/bin/python3

建立 Python3 和 pip3 的软链:
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3