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@njujerry
Created April 21, 2017 01:24
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CentOS升级python2.6至python2.7

CentOS升级python2.6至python2.7

查看python的版本

#python  -V    
Python 2.6.6  

1.下载Python-2.7.3

#wget http://python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2  

2.解压

#tar -jxvf Python-2.7.3.tar.bz2 

3.更改工作目录

#cd Python-2.7.3 

4.安装

#./configure  
#make all             
#make install  
#make clean  
#make distclean  

5.查看版本信息

#/usr/local/bin/python2.7 -V  

6.建立软连接,使系统默认的 python指向 python2.7

#mv /usr/bin/python /usr/bin/python2.6
#ln -s /usr/local/bin/python2.7 /usr/bin/python 

7.重新检验Python 版本

#python -V  

8解决系统 Python 软链接指向 Python2.7 版本后,因为yum是不兼容 Python 2.7的,所以yum不能正常工作,我们需要指定 yum 的Python版本

#vi /usr/bin/yum  

将文件头部的
#!/usr/bin/python

改成
#!/usr/bin/python2.6
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