def returnNotMatches(a, b): return [[x for x in a if x not in b], [x for x in b if x not in a]] def NotInPriceFile(price,bill): return [x for x in price if x not in bill] def NotInBillFile(price,bill): return [x for x in bill if x not in price]
def returnNotMatches(a, b): return [[x for x in a if x not in b], [x for x in b if x not in a]] def NotInPriceFile(price,bill): return [x for x in price if x not in bill] def NotInBillFile(price,bill): return [x for x in bill if x not in price]