First of all, thanks to Michael G. Noll for his blog which can be found here: http://www.michael-noll.com/tutorials/writing-an-hadoop-mapreduce-program-in-python
The following is a slightly modified version of this blog to allow it to run with the Pivotal Hadoop
Download the Pivotal Hadoop VM from here:
Find the downloads button. Download the Pivotal HD Single Node VM. At this point it may ask you to create an account with Pivotal.