centos将默认的python2.6升级到Python2.7

#安装Python2.7
yum install zlib zlib-devel
wget https://www.python.org/ftp/python/2.7.12/Python-2.7.12.tgz tar xf Python-2.7.12.tgz
cd Python-2.7.12
./configure --enable-shared --enable-loadable-sqlite-extensions --with-zlib
vi ./Modules/Setup
将注释去掉
#zlib zlibmodule.c -I$(prefix)/include -L$(exec_prefix)/lib -lz
make && make install

##备份原有python
mv /usr/bin/python /usr/bin/python.bak
cp /usr/local/bin/python2.7 /usr/bin/python

#修改yum
vim /usr/bin/yum
将第一行的#!/usr/bin/python 修改成/usr/bin/python2.6

#vi /etc/ld.so.conf
#添加/usr/local/lib
#生效
/sbin/ldconfig