linux中升级python版本

不建议直接覆盖升级系统python版本。服务器默认版本为2.6.6，升级到2.7.14
cd /usr/local/src
wget http://www.python.org/ftp/python/2.7.3/Python-2.7.14.tgz
tar -zxvf Python-2.7.3.tgz
cd Python-2.7.14
mkdir /usr/local/python27
./configure --prefix=/usr/local/python27
make && make install
此处直接将新版本定义为python27
如需定义为python则拷贝旧python并修改对应/usr/bin/yum为对应旧版本python
ln -s /usr/local/python27/bin/python2.7 /usr/bin/python27