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![Leo Marco Corpuz](https://secure.gravatar.com/avatar/41a122ae992ae47a0555e219474391fe?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Leo Marco Corpuz
18,975 PointsCapitalism game 3
This part sounds easy but can anyone point out what I’m missing? Thanks!
from dice import D6
class Hand(list):
def __init__(self, size=2, die_class=D6, *args, **kwargs):
if not die_class:
raise ValueError("You must provide a die class")
super().__init__()
for _ in range(size):
self.append(die_class())
self.sort()
def _by_value(self, value):
dice = []
for die in self:
if die == value:
dice.append(die)
return dice
class CapitalismHand(Hand):
@property
def ones(self):
return self._by_value(1)
@property
def twos(self):
return self._by_value(2)
@property
def threes(self):
return self._by_value(3)
@property
def fours(self):
return self._by_value(4)
@property
def fives(self):
return self._by_value(5)
@property
def sixes(self):
return self._by_value(6)
@property
def _sets(self):
return {
1: len(self.ones),
2: len(self.twos),
3: len(self.threes),
4: len(self.fours),
5: len(self.fives),
6: len(self.sixes)
}
@property
def doubles(self):
return self[0]==self[1]
@classmethod
def reroll(cls):
if self[0]==self[1]:
return cls(self)
2 Answers
![Marie Franklin](https://uploads.teamtreehouse.com/production/profile-photos/10711178/micro_himalayas-wallpapers-27894-5767969.jpg)
Marie Franklin
13,343 Pointsyou are doing great, The reroll method should just return a new instance of the CapitalismHand class.. that's it..
@classmethod
def reroll(cls):
return cls()
![Leo Marco Corpuz](https://secure.gravatar.com/avatar/41a122ae992ae47a0555e219474391fe?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Leo Marco Corpuz
18,975 PointsI’m not sure. I did this challenge a while back so I can’t remember. But my best guess is that cls() refers to the Hand class itself. The code is returning a new instance of the Hand class.
![Jiawei Hu](https://secure.gravatar.com/avatar/ce9745d5af179b9e293c9265343f4399?s=60&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Jiawei Hu
9,740 Pointscls refers to the class that the class method belongs to, which is CapitalismHand in this case.
Vitaliy Biriukov
14,172 PointsVitaliy Biriukov
14,172 PointsI don't get it much. we're not specifying the class here. How would the programm know that 'cls' is self?