New issue 1227: Cannot read in EAGLE derived_field_list https://bitbucket.org/yt_analysis/yt/issues/1227/cannot-read-in-eagle-derive... Robert Thompson: I'm encountering the following error when trying to see the `derived_field_list` for the sample EAGLE dataset `snipshot_399_z000p000`: ``` #!shell 🐡 [bob @ KeplerOSX /Volumes/StorageOSX/Research/EAGLE/snipshot_399_z000p000]$ python test.py yt : [INFO ] 2016-05-28 21:46:35,818 Parameters: current_time = 4.36142803605e+17 s yt : [INFO ] 2016-05-28 21:46:35,819 Parameters: domain_dimensions = [2 2 2] yt : [INFO ] 2016-05-28 21:46:35,819 Parameters: domain_left_edge = [ 0. 0. 0.] yt : [INFO ] 2016-05-28 21:46:35,819 Parameters: domain_right_edge = [ 8.47125 8.47125 8.47125] yt : [INFO ] 2016-05-28 21:46:35,820 Parameters: cosmological_simulation = 1 yt : [INFO ] 2016-05-28 21:46:35,820 Parameters: current_redshift = 2.22044604925e-16 yt : [INFO ] 2016-05-28 21:46:35,820 Parameters: omega_lambda = 0.693 yt : [INFO ] 2016-05-28 21:46:35,820 Parameters: omega_matter = 0.307 yt : [INFO ] 2016-05-28 21:46:35,820 Parameters: hubble_constant = 0.6777 yt : [INFO ] 2016-05-28 21:46:35,826 Allocating for 1.329e+07 particles yt : [INFO ] 2016-05-28 21:46:37,919 Identified 8.646e+05 octs yt : [INFO ] 2016-05-28 21:46:38,021 Attempting to download ~ 30 Mb of owls ion data from http://yt-project.org/data to /Volumes/StorageOSX/Research/yt_test_data. Traceback (most recent call last): File "test.py", line 4, in <module> print(ds.derived_field_list) File "/Users/bob/Dropbox/research/python/sphgr_yt/yt/data_objects/static_output.py", line 146, in ireq self.index File "/Users/bob/Dropbox/research/python/sphgr_yt/yt/data_objects/static_output.py", line 396, in index self.create_field_info() File "/Users/bob/Dropbox/research/python/sphgr_yt/yt/data_objects/static_output.py", line 443, in create_field_info self.field_info.setup_particle_fields(ptype) File "/Users/bob/Dropbox/research/python/sphgr_yt/yt/frontends/owls/fields.py", line 184, in setup_particle_fields self.find_dependencies(loaded) File "/Users/bob/Dropbox/research/python/sphgr_yt/yt/fields/field_info_container.py", line 292, in find_dependencies deps, unavailable = self.check_derived_fields(loaded) File "/Users/bob/Dropbox/research/python/sphgr_yt/yt/fields/field_info_container.py", line 359, in check_derived_fields if field not in self: raise RuntimeError RuntimeError ``` via the following code: ``` #!python import yt ds = yt.load('snip_399_z000p000.0.hdf5') print(ds.derived_field_list) ``` I am currently running a fork of yt which is up to date with the latest dev changes (`20374:b8a09cd382dd`). I am downloading the EAGLE *snap*shot now to give that a go.