升级python到2.7

查看系统当前python版本2: [root@wangyuelou ~]# python 1: 3: Python 2.4.3 (#1, May 5 2011, 16:39:10) 4: [GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] on linux2 5: Type "help", "copyright", "credits" or "license" for more information. 6: >;>> 7: [root@wangyuelou ~]# 下载新版本的python1: [root@wangyuelou ~]# wget http://python.org/ftp/python/2.7.2/Python-2.7.2.tgz解压缩 以及编译 1: [root@wangyuelou ~]# tar xvf Python-2.7.2.tar.bz2 2: [root@wangyuelou Python-2.7.2]# ./configure --prefix=/usr/local/python27 3: [root@wangyuelou Python-2.7.2]# make 4: [root@wangyuelou Python-2.7.2]# make install 5: [root@wangyuelou Python-2.7.2]# ls /usr/local/python27/ -al 6: total 28 7: drwxr-xr-x 6 root root 4096 Jul 14 00:21 . 8: drwxr-xr-x 20 root root 4096 Jul 14 00:17 .. 9: drwxr-xr-x 2 root root 4096 Jul 14 00:21 bin 10: drwxr-xr-x 3 root root 4096 Jul 14 00:21 include 11: drwxr-xr-x 4 root root 4096 Jul 14 00:21 lib 12: drwxr-xr-x 3 root root 4096 Jul 14 00:21 share覆盖原来的python链接 1: [root@wangyuelou Python-2.7.2]# mv /usr/bin/python /usr/bin/python_old 2: [root@wangyuelou Python-2.7.2]# ln -s /usr/local/python27/bin/python /usr/bin/ 3: [root@wangyuelou Python-2.7.2]# python 4: Python 2.7.2 (default, Jul 14 2011, 00:20:14) 5: [GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] on linux2 6: Type "help", "copyright", "credits" or "license" for more information. 7: >>> 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 1: [root@wangyuelou ~]# yum 2: There was a problem importing one of the Python modules 3: required to run yum. The error leading to this problem was: 4: 5: No module named yum 6: 7: Please install a package which provides this module, or 8: verify that the module is installed correctly. 9: 10: It's possible that the above module doesn't match the 11: current version of Python, which is: 12: 2.7.2 (default, Jul 14 2011, 00:20:14) 13: [GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] 14: 15: If you cannot solve this problem yourself, please go to 16: the yum faq at: 17: http://wiki.linux.duke.edu/YumFaq 18: 19: 20: [root@wangyuelou Python-2.7.2]# vim /usr/bin/yum 21: 22: #!/usr/bin/python #修改此处为2.4的位置 23: [root@wangyuelou ~]# vim /usr/bin/yum 24: 25: #!/usr/bin/python2.4 26: [root@wangyuelou ~]# yum 27: Loaded plugins: fastestmirror 28: You need to give some command 29: usage: yum [options] COMMAND 30: 31: List of Commands: 32: 33: check-update Check for available package updates 34: clean Remove cached data 35: deplist List a package's dependencies 36: downgrade downgrade a package 37: erase Remove a package or packages from your system 38: groupinfo Display details about a package group 39: groupinstall Install the packages in a group on your system 40: grouplist List available package groups 41: groupremove Remove the packages in a group from your system 42: help Display a helpful usage message 43: info Display details about a package or group of packages 44: install Install a package or packages on your system 45: list List a package or groups of packages 46: localinstall Install a local RPMyum 又可以使用了