wget https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgz
reference: http://blog.youkuaiyun.com/xh16319/article/details/39276053
wget https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgz
reference: http://blog.youkuaiyun.com/xh16319/article/details/39276053