def read_orbfile_stream(cls, stream: TextIO):
version, orbs, spin_orbs = _read_header(stream)
if spin_orbs:
raise FileFormat('File represents spin orbitals')
coeff, occ, energy, idx = _read_spatial_orbs(stream, orbs, version)
return cls(orbs, coeff, occ, energy, idx)
def read_orbfile(cls, path: PathLike):
with open(path, 'r') as f:
version, orbs, spin_orbs = _read_header(f)
if not spin_orbs:
raise FileFormat('File represents spatial orbitals.')
coeff, occ, energy, idx = _read_spin_orbs(f, orbs, version)
return cls(orbs, coeff, occ, energy, idx)