Centos 6.5版本发布了，但是里面使用的Python却是2.6.6的版本，对于想使用python新版本的朋友，可以自己升级python。

1.查看当前python的版本。
[root@linuxso.com]# python
Python 2.6.6 (r266:84292, Nov 22 2013, 12:16:22)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.

2. 安装升级相应的软件包。
   yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make
3. 下载python 3.3 的源码包。
   [root@localhost liukk]# wget http://mirrors.sohu.com/python/3.3.3/Python-3.3.3.tar.bz2
   –2013-12-24 06:10:56-- http://mirrors.sohu.com/python/3.3.3/Python-3.3.3.tar.bz2
   Resolving mirrors.sohu.com… 119.188.36.70
   Connecting to mirrors.sohu.com|119.188.36.70|:80… connected.
   HTTP request sent, awaiting response… 200 OK
   Length: 14122529 (13M) [application/octet-stream]
   Saving to: “Python-3.3.3.tar.bz2”

58% [======================================================================================> ] 8,216,640 128K/s eta 43s
4. 安装python3.3
tar jxvf Python-3.3.3.tar.bz2 -C /usr/local/src/
cd /usr/local/src/Python-3.3.3/
./configure --prefix=/usr/local/python3.3
make && make install
5. 配置python
mv /usr/bin/python /usr/bin/python.bak

ln -s /usr/local/python3.3/bin/python3.3 /usr/bin/python
6. 查看当python的版本
[root@localhost bin]# python
Python 3.3.3 (default, Dec 24 2013, 06:29:34)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux
Type “help”, “copyright”, “credits” or “license” for more information.

来自 http://www.linuxso.com/linuxrumen/13515.html