CatalogMesh.to_real_field() output attributes

[ruilan-zh]

Hi, I'm having some trouble understanding the output to CatalogMesh.to_real_field().

A relevant code snippet of how I'm using it is as below.

mesh = arraycat.to_mesh(resampler="nearest", BoxSize=boxsize, Nmesh=Nmesh, weight="Mass")
one_plus_delta = mesh.to_real_field()
print(one_plus_delta.attrs)
>> {'shotnoise': 301.4546997993518, 'N': 51832, 'W': 1.7454375300334058e+17, 
'num_per_cell': 42613220948081.195}

Looking at the source code, on line 385 of nbodykit/source/mesh/catalog.py, I'd expect "W2" to appear as an attribute, yet it does not show up. Also, the source code seems to set this to W. Should it not be W2?

toret.attrs['W2'] = W

EDIT: The struck-through issue was corrected by updating to the latest version nbodykit

[rainwoodman]

I agree with you -- this should have been a W2 to my eyes too. It must be a bug. Would you mind filing a fix?