Hi, I just installed the latest dev as of 30 minutes ago or so, but I get the following when I do >from yt.mods import * in python. Traceback (most recent call last): File "proj.py", line 1, in <module> from yt.mods import * File "/home/ux455076/dev-yt/lib/python2.7/site-packages/yt-2.4dev-py2.7-linux-x86_64.egg/yt/mods.py", line 98, in <module> from yt.frontends.art.api import \ File "/home/ux455076/dev-yt/lib/python2.7/site-packages/yt-2.4dev-py2.7-linux-x86_64.egg/yt/frontends/art/api.py", line 31, in <module> from .data_structures import \ File "/home/ux455076/dev-yt/lib/python2.7/site-packages/yt-2.4dev-py2.7-linux-x86_64.egg/yt/frontends/art/data_structures.py", line 42, in <module> from .fields import \ File "/home/ux455076/dev-yt/lib/python2.7/site-packages/yt-2.4dev-py2.7-linux-x86_64.egg/yt/frontends/art/fields.py", line 39, in <module> import yt.utilities.amr_utils as amr_utils ImportError: No module named amr_utils Is my installation broken or is there something wrong with the latest dev yt? From G.S.