(1)下载pip并安装
https://pypi.python.org/packages/source/p/pip/pip-1.4.tar.gz#md5=ca790be30004937987767eac42cfa44a
(2)tar -zxf pip-1.4.tar.gz
(3)cd pip-1.4
(4)python setup.py install
备注：[Errno 13] Permission denied: '/Library/Python/2.7/site-packages/test-easy-install-1433.pth'
(5)sudo python setup.py install
http://blog.csdn.net/luoxia0805/article/details/50486912
