Converting number to roman numerals

[voidptr]

From Wikipedia
https://en.wikipedia.org/wiki/Roman_numerals

Complete the code at (...) and you should be good to go.

:)

PS, of course it should be a class with converters, and the dictionary should be a class variable and etc. ...

def roman_numeral(n):

    dntor = {
        3000:'MMM',
        2000:'MM',
        1000:'M',
        900:'CM',
        800:'DCCC',
        700:'DCC',
        600:'DC',
        500:'D',
        400:'CD',
        300:'CCC',
        200:'CC',
        100:'C',
        90:'XC',
        80:'LXXX',
        70:'LXX',
        60:'LX',
        50:'L',
        40:'XL',
        30:'XXX',
        20:'XX',
        10:'X',
        9:'IX',
        8:'VIII',
        7:'VII',
        6:'VI',
        5:'V',
        4:'IV',
        3:'III',
        2:'II',
        1:'I',
        0:''
    }

    assert(0 < n < 4000)
    
    x = n%10
    rs = dntor[x]
    n -= x
    
    #...
    assert(n==0)

    return rs