python2.4升级2.7.2

[root@~]# python
 
Python 2.4.3 (#1, May  5 2011, 16:39:10)   
[GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] on linux2
 Type "help", "copyright", "credits" or "license" for more information.
>;>>
[root@~]#
下载新版本的python
 [root@~]# wget 
 
解压缩 以及编译
 [root@~]# tar jxvf Python-2.7.3.tar.bz2
 [root@wangyuelou Python-2.7.2]# ./configure --prefix=/usr/local/python27
 [root@wangyuelou Python-2.7.2]# make
 [root@wangyuelou Python-2.7.2]# make install
 [root@wangyuelou Python-2.7.2]# ls /usr/local/python27/ -al
 total 28
 drwxr-xr-x  6 root root 4096 Jul 14 00:21 .
 drwxr-xr-x 20 root root 4096 Jul 14 00:17 ..
 drwxr-xr-x  2 root root 4096 Jul 14 00:21 bin
 drwxr-xr-x  3 root root 4096 Jul 14 00:21 include
 drwxr-xr-x  4 root root 4096 Jul 14 00:21 lib
drwxr-xr-x  3 root root 4096 Jul 14 00:21 share
覆盖原来的python链接
 [root@wangyuelou Python-2.7.2]# mv /usr/bin/python /usr/bin/python_old
 [root@wangyuelou Python-2.7.2]# ln -s /usr/local/python27/bin/python /usr/bin/
 [root@wangyuelou Python-2.7.2]# python
 Python 2.7.2 (default, Jul 14 2011, 00:20:14)
 [GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] on linux2
 Type "help", "copyright", "credits" or "license" for more information.
 >>>
此处已经可以正常使用python2.7了
但是因为yum是使用的2.4的版本来用的，所以 还需要修改一下
 [root@~]# yum
 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, which is:
 2.7.2 (default, Jul 14 2011, 00:20:14)
 [GCC 4.1.2 20080704 (Red Hat 4.1.2-50)]
 
 If you cannot solve this problem yourself, please go to
 the yum faq at:
   
 
 [root@wangyuelou Python-2.7.2]# vim /usr/bin/yum
 
 #!/usr/bin/python   #修改此处为2.4的位置
 [root@~]# vim /usr/bin/yum
 
 #!/usr/bin/python2.4
 [root@~]# yum
 Loaded plugins: fastestmirror
 You need to give some command
 usage: yum [options] COMMAND
 
 List of Commands:
 
 check-update   Check for available package updates
 clean          Remove cached data
 deplist        List a package's dependencies
 downgrade      downgrade a package
 erase          Remove a package or packages from your system
 groupinfo      Display details about a package group
 groupinstall   Install the packages in a group on your system
 grouplist      List available package groups
groupremove    Remove the packages in a group from your system
help           Display a helpful usage message
 info           Display details about a package or group of packages
install        Install a package or packages on your system
 list           List a package or groups of packages
localinstall   Install a local RPM
yum 又可以使用了