[yt-users] _pdensity_pyx method not defined in yt 2.0

[Chris Malone]

Hi,

I just performed a clean install of yt 2.0, and upon importing from yt.mods
I get a complaint about the undefined field function _pdensity_pyx in
yt.data_objects.universal_fields.  In particular, it looks like some
spurious code has been left around at line 807 of universal_fields.py

add_field("particle_density",
function=_pdensity_pyx,
          validators=[ValidateSpatial(0)],
convert_function=_convertDensity,
          display_name=r"\mathrm{Particle}\/\mathrm{Density})")


Indeed, grep'ing for that function in the yt directory turns up no results
other than in universal_fields.py.  Commenting out these lines fixes the
problem, but this should probably be changed in the repo unless someone has
that _pdensity_pyx method handy and wants to push it to the 2.0 branch.

Chris
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