How Python converts Arabic numerals to Roman numerals

The examples in this article describe how Python converts Arabic numerals to Roman numerals. Share to everyone for your reference. The implementation method is as follows:

def numtoromannum (num): "" "digital would be converted into Roman numerals,ex:numtoromannum (3999)" "" If num < 1 or num > 3999:print ' The Num must in 1-3999 ' Else:numdic = {' 1 ':(' I ', ' IV ', ' V ', ' IX '), ' 2 ':(' X ', ' XL ', ' L ', ' XC '), ' 3 ':(' C ', ' CD ', ' D ', ' CM '), ' 4 ':(' M ')} items = sorted (Numdic.items ()) Retstr = "fo           R item in ITEMS:STR = "(num,modnum) = Divmod (num,10) if modnum! = 0:if item[0]! = ' 4 ': If Modnum <= 3:while modnum > 0:str = str.join ([' ', Item[1][0]]) modnu            M-= 1 Elif modnum < 5:STR = Item[1][1] elif Modnum = = 5:str = item[1][2] Elif Modnum < 9:STR = item[1][2] while modnum > 5:str = Str.join (               [", Item[1][0]]) Modnum-= 1 else:str = item[1][3] Else:while modnum > 0:sTR = Str.join ([', item[1][0]]) modnum-= 1 RETSTR = str.join ([' ', Retstr]) return RETSTR 

Hopefully this article will help you with Python programming.

