Linux centos7安装python3.8并且不影响python2

安装依赖

• yum -y groupinstall "Development tools"
• yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel libpcap-devel xz-devel libffi-devel

下载源码包， 编译安装

• wget https://www.python.org/ftp/python/3.8.5/Python-3.8.5.tar.xz
• tar -xvJf Python-3.8.5.tar.xz
• cd Python-3.8.5
• ./configure -prefix=/usr/local/python3
• make && make install

设置软连接

• ln -s /usr/local/python3/bin/python3 /usr/bin/python3
• ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

[root@console Python-3.8.5]# python3
Python 3.8.5 (default, Sep 21 2020, 11:16:18) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>