查看python版本
python -V
下载并安装python
cd /home/ishangsoft/ wget http://down.i.my71.com/Python-2.7.6.tgz tar vxf Python-2.7.6.tgz cd Python-2.7.6 ./configure --prefix=/usr/local make && make install #保留python2.6 mv /usr/bin/python /usr/bin/python2.6.6 #建立链接指向python2.7 ln -s /usr/local/bin/python2.7 /usr/bin/python #将yum进程执行python2.6的环境 sed -i 's;#!/usr/bin/python;#!/usr/bin/python2.6.6;' /usr/bin/yum #验证python版本 python -V
参考：
https://www.cnblogs.com/zihanxing/p/7088804.html
https://www.jb51.net/article/118246.htm
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