RADEX path or moldata does not exist

[travisthieme]

Hi @astropenguin,

Currently trying to use ndradex to fit some peak brightness temperatures. Was working very well before, but now for some reason when I run my fitting I get several warning messages stating: RADEX path or moldata does not exist. I wonder, is there a reason for this? I did try to install a few other RADEX python packages, so I wonder if that influenced anything?

The ndradex part of my code is simply the following:

result = ndradex.run("ph2co-h2.dat", 
                     transition, 
                     T_kin=np.power(10, temperature),
                     N_mol=np.power(10, column_density), 
                     n_H2=np.power(10, density), 
                     dv=linewidth, 
                     progress=False)

where I am fitting the values in log-space, but converting them back when feeding to ndradex. When I get this warning, my fitting process always throws an assertion error of AssertionError: nan.

When I run the package outside of my fitting procedure, I don't ever see this error. For example, the following code does not seem to ever produce this warning for me:

import ndradex

ds_303202 = ndradex.run("ph2co-h2.dat", 
                        "(3,0,3)-(2,0,2)", 
                        T_kin=21.49,
                        N_mol=1.17e15, 
                        n_H2=8.98e6, 
                        dv=1.946, 
                        progress=False)

Additionally, I checked

from ndradex import consts

print (consts.RADEX_BIN)

which returns: .../miniconda3/envs/astro38/lib/python3.8/site-packages/ndradex/bin.

Any guidance on how I can address this is appreciated. Thank you for such a nice and easy-to-use package!

Current Setup:

• MacBook Pro 2023 (M3 Max)
• MacOS 14.6.1 (23G93)
• Python 3.8.15
• ndradex 0.3.1