Numpy implementation of b3lyp

[alexm-gc]

Apologies for a perhaps silly question. I've been meaning to get a better grasp of the nitty gritty details of b3lyp. Is there a python/numpy implementation of b3lyp in psi4numpy? If so, does anyone have a link?

I was looking at PySCF, but it calls C/fortran code which is much harder to experiment and play with. Considering porting that C/fortran code to python/numpy. Would save me a lot of time if this already exists somewhere in python/numpy.

[hokru]

Of the functional expression for B88 and LYP? No I don't think so.
Maybe the maple sheets used by libxc are helpful ? https://github.com/ElectronicStructureLibrary/libxc/tree/master/maple
There should be some free viewers for those sheets. Maple might even generate python code but not sure.

[pwborthwick]

I have a python implementation here if it helps.