查看版本
[root@localhost Python-2.7.8]# pythonPython 2.6.6 (r266:84292, Aug 18 2016, 14:53:48) [GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linux2Type "help", "copyright", "credits" or "license" for more information.
操作：
wget http://python.org/ftp/python/2.7.8/Python-2.7.8.tgz
tar -zxvf Python-2.7.8.tar.bz2
./configure --prefix=/usr/local/python27
make && make install
mv /usr/bin/python /usr/bin/python_old
ln -s /usr/local/python27/bin/python /usr/bin/
检查
[root@localhost Python-2.7.8]# pythonPython 2.7.8 (default, Jan 3 2018, 20:47:59) [GCC 4.4.7 20120313 (Red Hat 4.4.7-18)] on linux2Type "help", "copyright", "credits" or "license" for more information.