Converter Roman - Decimal with python

RomDecConverter.py

# Created function to convert num to roman
def dec2rom(num):

	_m = int(num / 1000)
	num = num % 1000
	# 
	_d = int(num / 500)
	num = num % 500
	# 
	_c = int(num / 100)
	num = num % 100
	# 
	_l = int(num / 50)
	num = num % 50
	# 
	_x = int(num / 10)
	num = num % 10
	# 
	_v = int(num / 5)
	num = num % 5

	# generate result
	result = ("M"*_m)+("D"*_d)+("C"*_c)+("L"*_l)+("X"*_x)+("V"*_v)+("I"*num)

	# replace result
	result = result.replace("DCCCC","CM")
	result = result.replace("LXXXX","XC")
	result = result.replace("VIIII","IX")
	result = result.replace("CCCC","CD")
	result = result.replace("XXXX","XL")
	result = result.replace("IIII","IV")

	print(result) # print result
	pass

def rom2dec(string):
	# set string to uppercase
	string = string.upper()
	# 
	romanTable = {
		'CM':900,
		'XM':990,
		'IM':999,
		'M':1000,
		'CD':400,
		'XD':490,
		'ID':499,
		'D':500,
		'XC':90,
		'IC':99,
		'C':100,
		'XL':40,
		'IL':49,
		'L':50,
		'IX':9,
		'X':10,
		'IV':4,
		'V':5,
		'I':1,
	}

	# string.replace()
	for key in romanTable: # get key
		if key in string: # if key exist
			string =string.replace(key,f" {romanTable.get(key)}") #replace
			pass
		pass
	print(sum(int(s) for s in string.split()))
	pass



#dec2rom(1999)
#rom2dec("mMXiX")