centOS 安装 pip

（1）安装依赖环境

wget --no-check-certificate https://bootstrap.pypa.io/ez_setup.py -O - | python

（2）下载pip

wget --no-check-certificate https://github.com/pypa/pip/archive/1.5.5.tar.gz
tar zvxf 1.5.5.tar.gz    #解压文件cd pip-1.5.5/python setup.py install
（3）下载依赖

pip install requests
就搞定了