Upgrade CentOS6 to Python2.7

Upgrade CentOS6 to Python2.7

Preparations before installation
This example uses CentOS6.7 as an example.
[Root @ E tools] # uname-r
2.6.32-431.23.3.el6.x86 _ 64
[Root @ E tools] # uname-m
X86_64
[Root @ E ~] # Python-V
Python 2.6.6

Kernel version 2.6.32 64-bit Operating System

Readline-devel is installed before installation. It cannot be used without "Create up, down, right, and down ".
Yum-y install readline-devel

Select the download Directory, which can be stored in the home directory.
[Root @ E ~] # Cd/home/evan/tools/

Download python2.7.11
Wget https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz

View download content
[Root @ E tools] # ls/home/evan/tools/
Python-2.7.11.tgz

Extract
Tar zxvf Python-2.7.11.tgz

Install python2.7.11
Cd Python-2.7.11
./Configure -- prefix =/application/python2.7.11
Make
Make install

Specify the installation path: -- prefix =/application/python2.7.11
Modify the default python version.
[Root @ E Python-2.7.11] # mv/usr/bin/python/usr/bin/python2.6.6
[Root @ E Python-2.7.11] # ln-s/application/python2.7.11/bin/python/usr/bin/python

Back up the original version and create a soft connection for version 2.7.11
View python version
[Root @ E Python-2.7.11] # python-V
Python 2.7.11

Applications such as yum may not be available after the python version is changed.
Modify the python version of yum
[Root @ E tools] # sed-I's @#! /Usr/bin/python @#! /Usr/bin/python2.6.6 @ G'/usr/bin/yum
[Root @ E tools] # grep python/usr/bin/yum
#! /Usr/bin/python2.6.6

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