def make_year(self, year, state):
        try:
            year = int(year)
        except ValueError:
            raise Invalid(self.message('invalidYear', state), year, state)
        if year <= 20:
            year += 2000
        elif 50 <= year < 100:
            year += 1900
        if year < 50 < 20 or 99 < year < 1900:
            raise Invalid(self.message('fourDigitYear', state), year, state)
        return year
dataset/ETHPy150Open formencode/formencode/formencode/validators.py/DateConverter.make_year/swapped operands of `<`