Linux下python升级至2.7

1. 下载python源码包

wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz

2. 解压

tar -xjf Python-2.7.3.tar.bz2

3. 创建新python目录

mkdir /usr/local/python2.7

4. 编译安装

tar xf Python-2.7.3.tgz  
 cd Python-2.7.3
 ./configure --prefix=/usr/local/python2.7
 make && make install

5. 此时还没有覆盖老版本，可以先将旧python版本改成别的名字

mv /usr/bin/python /usr/bin/python_old

6. 为新版本的python建立like

ln -s 1116.www.qixoo.qixoo.com/usr/local/python2.7/bin/python2.7 /usr/bin/python

7. 测试，在命令行输入python，就会显示当前python的版本信息

[ ~]# python
 Python 2.7.3 (default, Nov 15 2016, 16:58:04)
 [GCC 4.4.7 20120313 (Red Hat 4.4.7-16)] on linux2
 Type "help", "copyright", "credits" or "license" for more information.
 >>>