Python-сообщество

 def romanToInt(self, s):
        rom_dict = {
            "I":1,
            "V":5,
            "X":10,
            "L":50,
            "C":100,
            "D":500,
            "M":1000
            }   
        rom_line = [letter for letter in s]
        num_line = [rom_dict[num] for num in rom_line]
    
        for i in range(len(num_line) - 1):
            if num_line[i] < num_line[i+1]:
                x = num_line[i+1] - num_line[i]
                num_line.pop(i)
                num_line.pop(i)
                num_line.insert(i, x)
        return sum(num_line)