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