class Converter:

    def __init__(self):
        self.dec_to_roman = {1000: 'M', 500: 'D', 100: 'C', 50: 'L', 10: 'X', 5: 'V', 1: 'I'}
        self.roman = ''

    def convert(self, decimal_number):
        """
        Takes in a decimal number e.g. 10,
        returns the roman numeral equivalent as a String
        :param decimal_number:
        :return: String roman_numeral
        """
        if decimal_number <1:
            return self.roman

        for item in self.dec_to_roman:
            if decimal_number >= item:
                self.roman = self.roman + self.dec_to_roman[item]
                decimal_number = decimal_number - item
                return self.convert(decimal_number)