def check_lowest(optype, mom, irrep): logging.debug("checking if lowest in channel for {} {} {}".format(optype, mom, irrep)) strangeness, isospin = infer_strangeness_and_isospin(optype) momstring = mommap(mom) if momstring == "nocheck": return -1 elevels = primary_operators.read_expected_levels(strangeness, isospin, irrep, mom=momstring) index_first_single = next(i for (i,e) in enumerate(elevels) if "PSQ" not in e) return index_first_single