redhat 升級python到2.7

今天看了一下虛擬機中的python，發現還是原生的2.4.3，所以決定升級一下

1	[root@local_redhat ~]# python

2	Python 2.4.3 (#1, May  5 2011, 16:39:10)

3	[GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] on linux2

4	Type "help", "copyright", "credits" or "license" for more information.

5

>;>>

6	[root@local_redhat ~]#

下載新版本的python

1	[root@local_redhat ~]# wget http://python.org/ftp/python/2.7.2/Python-2.7.2.tgz

解壓縮 以及編譯

01	[root@local_redhat ~]# tar xvf Python-2.7.2.tar.bz2

02	[root@local_redhat Python-2.7.2]# ./configure --prefix=/usr/local/python27

03	[root@local_redhat Python-2.7.2]# make

04	[root@local_redhat Python-2.7.2]# make install

05	[root@local_redhat Python-2.7.2]# ls /usr/local/python27/ -al

06

total 28

07	drwxr-xr-x  6 root root 4096 Jul 14 00:21 .

08	drwxr-xr-x 20 root root 4096 Jul 14 00:17 ..

09	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

覆蓋原來的python鏈接

1	[root@local_redhat Python-2.7.2]# mv /usr/bin/python /usr/bin/python_old

2	[root@local_redhat Python-2.7.2]# ln -s /usr/local/python27/bin/python /usr/bin/

3	[root@local_redhat 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

>>>

此處已經可以正常使用python2.7了

但是因爲yum是使用的2.4的版本來用的，現在輸入一下yum就會報錯

01	[root@local_redhat ~]# yum

02	There was a problem importing one of the Python modules

03	required to run yum. The error leading to this problem was:

04

05	No module named yum

06

07	Please install a package which provides this module, or

08	verify that the module is installed correctly.

09

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

所以還需要修改一下

01	[root@local_redhat Python-2.7.2]# vim /usr/bin/yum

02

03	#!/usr/bin/python   #修改此處爲2.4的位置

04	[root@local_redhat ~]# vim /usr/bin/yum

05

06	#!/usr/bin/python2.4

07	[root@local_redhat ~]# yum

08	Loaded plugins: fastestmirror

09	You need to give some command

10	usage: yum [options] COMMAND

11

12	List of Commands:

13

14	check-update   Check for available package updates

15	clean          Remove cached data

16	deplist        List a package's dependencies

17	downgrade      downgrade a package

18	erase          Remove a package or packages from your system

19	groupinfo      Display details about a package group

20	groupinstall   Install the packages in a group on your system

21	grouplist      List available package groups

22	groupremove    Remove the packages in a group from your system

23	help           Display a helpful usage message

24	info           Display details about a package or group of packages

25	install        Install a package or packages on your system

26	list           List a package or groups of packages

27	localinstall   Install a local RPM

yum 又可以使用了