Hi. I was trying to install mpi for my raspberry pi cluster and had problem with download from googlecode.com page. It was moved so here is quick fix for this one.
Not working mpi4py link on googlecode.com fix
Use command below to download mpi for raspberry pi cluser . mpi4py-1.3.1.tar.gz version but if you follow this link in your browser , you can choose latest version if you want to.