Britton, yes, I got the same error as you did. Some searching got me this: https://trac.macports.org/ticket/28549 which pointed out that h5py-1.3.1 does not support hdf5-1.8.6. Does one of us want to try things with hdf5-1.8.5, or the development branch of h5py? -- Stephen Skory s at skory.us http://stephenskory.com/ 510.621.3687 (google voice)