Hi Kevin, I just updated my "community" install of yt on Kraken. You can use it like this: source /lustre/scratch/proj/yt_common/current/bin/activate I haven't tested it - I just updated it, so it may not work, but it's worth a shot. Good luck! -- Stephen Skory s at skory.us http://stephenskory.com/ 510.621.3687 (google voice)