作者：zhanhailiang 日期：2014-11-16
[root@~/software]# yum install bzip* [root@~/software]# wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz [root@~/software]# tar zxvf Python-2.7.3.tgz [root@~/software]# cd Python-2.7.3 [root@~/software/Python-2.7.3]# ./configure [root@~/software/Python-2.7.3]# make && make install [root@~/software]# cd /usr/local/bin/ [root@/usr/local/bin]# ls -al python* lrwxrwxrwx 1 root root 7 Nov 16 18:24 python -> python2 lrwxrwxrwx 1 root root 9 Nov 16 18:24 python2 -> python2.7 -rwxr-xr-x 1 root root 6162217 Nov 16 18:23 python2.7 -rwxr-xr-x 1 root root 1624 Nov 16 18:24 python2.7-config lrwxrwxrwx 1 root root 16 Nov 16 18:24 python2-config -> python2.7-config lrwxrwxrwx 1 root root 14 Nov 16 18:24 python-config -> python2-config [root@/usr/local/bin]# /usr/local/bin/python -V Python 2.7.3
如此安装就完毕了。可是由于部分软件，如node.js依赖python2.7，此时须要改动系统路径python命令指向2.7.3版本号：
[root@/usr/local/bin]# cp /usr/bin/python /usr/bin/python.bak.2014.11.16 [root@/usr/local/bin]# rm /usr/bin/python [root@/usr/local/bin]# ln -s /usr/local/bin/python2.7 /usr/bin/python
如此，假设遇到yum出问题。例如以下“There was a problem importing one of the Python modules”：
[root@~/software/Python-2.7.3]# yum search bzip 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: 2.7.3 (default, Nov 16 2014, 18:22:57) [GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] If you cannot solve this problem yourself, please go to the yum faq at: http://yum.baseurl.org/wiki/Faq
这是由于yum依赖老版本号的python，能够按例如以下操作修复：
[root@~/software/Python-2.7.3]# vim /usr/bin/yum
改动第一行命令行，将python指向指定版本号即可了：
1 #!/usr/bin/python2.6 2 import sys 3 try: 4 import yum