Decimal to roman numeral converter in python

Python program for Decimal to roman numeral converter. Here mentioned other language solution.

#  Python 3 program for
#  Conversion from Decimal to roman number
class Perform :
    # Display roman value of n
    @staticmethod
    def result( n) :
        if (n==1):
            print("I", end ="")
        elif(n==4):
            print("IV", end ="")
        elif(n==5):
            print("V", end ="")
        elif(n==9):
            print("IX", end ="")
        elif(n==10):
            print("X", end ="")
        elif(n==40):
            print("XL", end ="")
        elif(n==50):
            print("L", end ="")
        elif(n==90):
            print("XC", end ="")
        elif(n==100):
            print("C", end ="")
        elif(n==400):
            print("CD", end ="")
        elif(n==500):
            print("D", end ="")
        elif(n==900):
            print("DM", end ="")
        elif(n==1000):
            print("M", end ="")
    @staticmethod
    def  select( number,  collection,  size) :
        n = 1
        i = 0
        i = 0
        while (i < size) :
            if (number >= collection[i]) :
                n = collection[i]
            else :
                break
            i += 1
        Perform.result(n)
        # Reduce the value of number
        return number - n
    @staticmethod
    def romanNo( number) :
        if (number <= 0) :
            # When is not a natural number
            return
        # Base case collection
        collection = [1, 4, 5, 9, 10, 40, 
        50, 90, 100, 400, 500, 900, 1000]
        # Get the size of collection
        size = len(collection)
        print(" " + str(number) , end =" : ")
        while (number > 0) :
            number = Perform.select(number, 
                collection, size)
        # Add new line
        print()

if __name__=="__main__":
    # Test Case
    Perform.romanNo(10)
    Perform.romanNo(18)
    Perform.romanNo(189)
    Perform.romanNo(604)
    Perform.romanNo(982)
    Perform.romanNo(3000)

Output

 10 : X
 18 : XVIII
 189 : CLXXXIX
 604 : DCIV
 982 : DMLXXXII
 3000 : MMM