更新Python到2.7

-★出爺;3

　　眼看着python3  都出来了，vps上用的还是2.4的版本额，确实汗了一把。决定升级下python。


python2.7是2.X的最后一个版本，同时她也加入了一部分3.X的新特性。so 让我们升级吧！


查看系统当前python版本


   2:
[iyunv@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:
[iyunv@wangyuelou ~]#




下载新版本的python
　　   1:
[iyunv@wangyuelou ~]# wget   http://python.org/ftp/python/2.7.2/Python-2.7.2.tgz



　　解压缩  以及编译

   1:
[iyunv@wangyuelou ~]# tar xvf Python-2.7.2.tar.bz2
   2:
[iyunv@wangyuelou Python-2.7.2]# ./configure --prefix=/usr/local/python27
   3:
[iyunv@wangyuelou Python-2.7.2]# make
   4:
[iyunv@wangyuelou Python-2.7.2]# make install
   5:
[iyunv@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:
[iyunv@wangyuelou Python-2.7.2]# mv /usr/bin/python /usr/bin/python_old
   2:
[iyunv@wangyuelou Python-2.7.2]# ln -s /usr/local/python27/bin/python /usr/bin/
   3:
[iyunv@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:
>>>