$ sudo aptitude install python-mvpa
$ sudo aptitude install python-mvpa2
Also installed nibabel
$ easy_install nibabel
But pymvpa doesn't work - first line in tutorial of either package gives mdp error about "convolution_nodes". I've tried reinstalling mdp. Out of time for now...
[now resolved, see comments below from the proactive pymvpa support, who contacted me after reading this post!]