Dice.py

from random import randint
class Die(object):
    def __init__(self, sides=None):
        if isinstance(sides, int):
            self.sides = sides
        else:
            self.sides = 6
    def roll(self):
        return randint(1, self.sides)
class Dice(object):
    def __init__(self, *args):
        self.pieces = []
        for item in args:
            self.add(item)
    def add(self, newdie):
        if isinstance(newdie, Die):
            self.pieces.append(newdie)
    def rollAll(self):
        return [i.roll() for i in self.pieces]

#Example usage: roll 3 normal dice
if __name__ == '__main__':
    print Dice(Die(), Die(), Die()).rollAll()