Hi Britton, I am following the instructions in install.rst. It says... Add :file:`$HOME/lib/python` or :file:`$HOME/lib64/python` to your :envvar:`PYTHONPATH` environment variable. I do not have lib in my $HOME. [agarwa23@tg-steele ~]$ echo $HOME /home/ba01/u118/agarwa23 [agarwa23@tg-steele ~]$ ls dir_hop enzo enzo1 enzov1.5 mpi4py And my .soft file looks like this... [agarwa23@tg-steele ~]$ cat .soft # Common TeraGrid Software Stack Version 3 (CTSSv3) # # Please consult TeraGrid user documentation at # http://www.teragrid.org/userinfo/software/softenv.php # for information on customizing this file. # PATH += /home/ba01/u118/agarwa23/enzo1/src/yt/doc/yt-x86_64/bin PYTHONPATH += /home/ba01/u118/agarwa23/enzo1/src/yt/doc/yt-x86_64/lib/python2.6/site-packages LD_LIBRARY_PATH += /home/ba01/u118/agarwa23/enzo1/src/yt/doc/yt-x86_64/lib # TeraGrid wide basic software suite @teragrid-basic # TeraGrid wide Globus 4 and Grid software suite @globus-4.0 # Platform recommended development software suite @teragrid-dev What should I do? Shankar KU Cosmology