[root@localhost python]# tar xvf Python-3.6.9.tgz
[root@localhost python]# cd Python-3.6.9/
[root@localhost Python-3.6.9]# source /etc/profile
[root@localhost Python-3.6.9]# ./configure --prefix=/usr/local/python-3.6.9
[root@localhost Python-3.6.9]# make && make install
备份
[root@localhost bin]# mv /usr/bin/python /usr/bin/python_back
[root@localhost bin]# mv /usr/bin/python2.7 /usr/bin/python2.7_back
创建软连接
[root@localhost Python-3.6.9]# ln -s /usr/local/python-3.6.9/bin/python3.6 /usr/bin/python
root@localhost Python-3.6.9]# ln -s /usr/local/python-3.6.9/bin/pip3 /usr/bin/pip3
查看版本
[root@sdw1 Python-3.6.9]# python -V
