Dice Program for Python 3

Dice-Python-3.py

'''
This program is designed for the original Python 3
and not for Python 2. Check out the original program
which is designed for Python 2.

Also check out my dice program fr the BBC MicroBit
here - 

https://gist.github.com/rudrathegreat/f42e1ca01c81ea9973e4653b60c16085
https://gist.github.com/rudrathegreat/ed7db24af713ae8d42444bc0816d19c6

'''

import random
from time import sleep

class Dice(object):
    def __init__(self, min, max):
        pass
        self.min = min
        self.max = max
        self.roll  = False
    def roll_dice(self, input = ''):
        while self.roll == False:
            response = input('>')
            if response == 'r':
                self.roll = True
                break
        if input == 'double':
            num1 = random.randint(self.min, self.max)
            num2 = random.randint(self.min, self.max)
            return num1, num2
        if input == 'single':
            num = random.randint(self.min, self.max)
            return num