Python 3.7 script
based on a script for many-particle systems in Slater basis on graphs: fermion-graph
this script is part of the public domain
CC0 1.0 Universal (CC0 1.0)
Author: Markus Penz (2022)
main script is dens-pot-inversion.py
includes the packages fermion_hamiltonian.py, graph_dft.py and timer.py