Hi Wolfram, I have two suggestions. First, my line numbers don't match yours for yt/data_objects/data_containers.py. This means that you're not on the latest development version of yt. I would first try updating to the latest development version: $ cd $YT_HG $ hg pull $ hg up yt $ python setup.py build_ext -i and then try your script again. If the issue isn't fixed by updating, I would then try applying the following diff to the nyx frontend: diff -r f936432ed45d yt/frontends/nyx/data_structures.py --- a/yt/frontends/nyx/data_structures.py Tue Jul 30 10:08:24 2013 -0700 +++ b/yt/frontends/nyx/data_structures.py Tue Aug 06 08:10:25 2013 -0700 @@ -611,7 +611,7 @@ # aliases we need self.parameters["TopGridRank"] = len(self.parameters["TopGridDimensions"] self.dimensionality = self.parameters["TopGridRank"] - self.domain_dimensions = self.parameters["TopGridDimensions"] + self.domain_dimensions = np.array(self.parameters["TopGridDimensions"]) self.refine_by = self.parameters.get("RefineBy", 2) # 2 is silent defaul # Nyx is always cosmological. If you take a look at the enzo frontend, EnzoStaticOutput.domain_dimensions will always be a numpy array, for which an astype method is well defined. If that fixes your issue, would you mind submitting the patch as a pull request? There's more information about submitting changes in the yt docs: http://yt-project.org/docs/2.5/advanced/developing.html#making-and-sharing-c... Cheers, Nathan On Tue, Aug 6, 2013 at 2:29 AM, Wolfram Schmidt < schmidt@astro.physik.uni-goettingen.de> wrote:
Hi,
I have got problem that concerns Nyx users and/or yt developers.
I want to read the root-grid level from AMR data sets with the following piece of code:
num_ghost_zones=2 left=na.amin(pf.h.grid_left_**edge,axis=0) right=na.amax(pf.h.grid_right_**edge,axis=0) resolution = (right-left)/pf.h.grids[0]['**dx']+2*num_ghost_zones cg = pf.h.covering_grid(0,left,**resolution,num_ghost_zones=** num_ghost_zones)
This works for Enzo data sets, but it fails for Nyx data sets. The error message is
Traceback (most recent call last): File "/home/h/nipiagws/scripts/**spect_sb.py", line 52, in <module> cg = pf.h.covering_grid(0,left,**resolution,num_ghost_zones=** num_ghost_zones) File "/home/h/nipschul/yt-x86_64/**src/yt-hg/yt/data_objects/**data_containers.py", line 3727, in __init__ self.dds = self.pf.domain_width/rdx.**astype("float64") AttributeError: 'list' object has no attribute 'astype'
The script used to work also for Nyx data sets, with an older version of yt (about a year ago).
How can this be fixed?
Thanks a lot, Wolfram ______________________________**_________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/**listinfo.cgi/yt-users-**spacepope.orghttp://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org