Linux安装python2.7.9

--- 安装依赖包 
# cd /usr/local
# yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make -y
# wget https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgz
# tar -xzvf Python-2.7.9.tgz
# cd Python-2.7.9
# ./configure --prefix=/usr/local/Python2.7.9 --enable-shared -enable-unicode=ucs4
# make
# make install
# python -V

# which python
# cd /usr/bin
# rm python
# ln -s /usr/local/Python2.7.9/bin/python python
# python -V  -- 执行报错 

# cd /etc/ld.so.conf.d/
# echo "/usr/local/Python2.7.9/lib" > python2.7.conf
# ldconfig
# python -V

# which yum
# vi /usr/bin/yum
---- 修改第一行路径为：#!/usr/bin/python2.6