NIRCam example notebook error

[aliciacanipe]

I was hoping to use one of the example notebooks (nircam_photon_noise_and_contrast.ipynb) to create a slope image, but I think there might have been an update to the pandeia engine that is causing an error in the notebook now. The error is below. Is there any way I could get an updated example notebook? I can't figure out a workaround for the geometries error because I don't know what the original code looked like.

`---------------------------------------------------------------------------
RemoteTraceback Traceback (most recent call last)
RemoteTraceback:
"""
Traceback (most recent call last):
File "/Users/acanipe/miniconda3/envs/astroconda/lib/python3.5/multiprocessing/pool.py", line 119, in worker
result = (True, func(*args, **kwds))
File "/Users/acanipe/miniconda3/envs/astroconda/lib/python3.5/multiprocessing/pool.py", line 44, in mapstar
return list(map(*args))
File "/Users/acanipe/miniconda3/envs/astroconda/lib/python3.5/site-packages/pandeia_coronagraphy/engine.py", line 96, in perform_calculation
results = pandeia_calculation(calcfile)
File "/Users/acanipe/miniconda3/envs/astroconda/lib/python3.5/site-packages/pandeia/engine/perform_calculation.py", line 39, in perform_calculation
report = calculate_sn(calc_input, webapp=webapp)
File "/Users/acanipe/miniconda3/envs/astroconda/lib/python3.5/site-packages/pandeia/engine/etc3D.py", line 1230, in calculate_sn
scene = Scene(input=scene_configuration, webapp=webapp)
File "/Users/acanipe/miniconda3/envs/astroconda/lib/python3.5/site-packages/pandeia/engine/scene.py", line 54, in init
self._from_list(input)
File "/Users/acanipe/miniconda3/envs/astroconda/lib/python3.5/site-packages/pandeia/engine/scene.py", line 91, in _from_list
self.sources.append(src.Source(config=s, webapp=self.webapp))
File "/Users/acanipe/miniconda3/envs/astroconda/lib/python3.5/site-packages/pandeia/engine/source.py", line 223, in init
if self.shape['geometry'] in self.geometries:
AttributeError: 'Source' object has no attribute 'geometries'
"""

The above exception was the direct cause of the following exception:

AttributeError Traceback (most recent call last)
in ()
1 engine.options.wave_sampling = 20
----> 2 targ_results, ref_results = engine.calculate_batch([target,reference])

~/miniconda3/envs/astroconda/lib/python3.5/site-packages/pandeia_coronagraphy/engine.py in calculate_batch(calcfiles, nprocesses)
66 nprocesses = mp.cpu_count()
67 pool = mp.Pool(processes = nprocesses)
---> 68 results = pool.map(perform_calculation, calcfiles)
69 pool.close()
70 pool.join()

~/miniconda3/envs/astroconda/lib/python3.5/multiprocessing/pool.py in map(self, func, iterable, chunksize)
264 in a list that is returned.
265 '''
--> 266 return self._map_async(func, iterable, mapstar, chunksize).get()
267
268 def starmap(self, func, iterable, chunksize=None):

~/miniconda3/envs/astroconda/lib/python3.5/multiprocessing/pool.py in get(self, timeout)
642 return self._value
643 else:
--> 644 raise self._value
645
646 def _set(self, i, obj):

AttributeError: 'Source' object has no attribute 'geometries'`

Thanks for the help!
Alicia

[mperrin]

Hi Alicia,

Yes, there are known issues/incompatibilities with recent version of Pandeia. Brian York has been working on fixes for these, in another branch of this codebase. There's a bunch of JIRA items in the MESA JIRA space related to this.

(Apologies for brief response for now - but wanted to let you know yes this is a known problem and is being worked on.)