I am working on mac OS X Yosemite, version 10.10.3.
I installed python2.7 and pip using macport as done in http://johnlaudun.org/20150512-installing-and-setting-pip
On Windows, you need to add the path %USERPROFILE%\AppData\Roaming\Python\Scripts to your path.
%USERPROFILE%\AppData\Roaming\Python\Scripts