centos 编译安装 python

1、下载源码

wget https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz

2、解压

tar zxvf Python-2.7.11.tgz

3、安装

cd Python-2.7.11

./configure --prefix=/usr/local/python27

make && make install

4、修改系统默认python，并更新

mv /usr/bin/python /usr/bin/python2.6.old

ln -s /usr/local/python27/bin/python2.7 /usr/bin/python

5、检测

python -V，显示2.7.11

6、更改yum解释器

由于yum使用python解释器，输入命令yum list，显示

There was a problem importing one of the Python modules

required to run yum. The error leading to this problem was:

No module named yum

Please install a package which provides this module, or

verify that the module is installed correctly.

It‘s possible that the above module doesn‘t match the

current version of Python

vi /usr/bin/yum

将文件头部的#!/usr/bin/python改为#!/usr/bin/python2.6