[yt-dev] Issue #1071: ART does not auto-detect AGORA files (yt_analysis/yt)

[Kenza Arraki]

New issue 1071: ART does not auto-detect AGORA files
https://bitbucket.org/yt_analysis/yt/issues/1071/art-does-not-auto-detect-agora-files

Kenza Arraki:

ART cannot automatically load the AGORA files. This causes it to fail as it does not know the number of root grid cells.

Data from:
`AGORA-DISK-repository-for-use/Grackle+noSF/ART-I/IC`

```
#!python

In [1]: import yt

In [2]: ds = yt.load('AGORA_Galaxy_LOW.d')
yt : [INFO     ] 2015-08-23 11:21:45,490 Using root level of 09
yt : [INFO     ] 2015-08-23 11:21:45,677 Max level is 08
---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-2-661a3253e356> in <module>()
----> 1 ds = yt.load('AGORA_Galaxy_LOW.d')


...


/global/u1/k/karraki/yt/yt/frontends/art/data_structures.pyc in _set_code_unit_attributes(self)
    231         wmu = self.parameters["wmu"]
    232         Om0 = self.parameters['Om0']
--> 233         ng = self.parameters['ng']
    234         boxh = self.parameters['boxh']
    235         aexpn = self.parameters["aexpn"]

KeyError: 'ng'
```

Responsible: karraki