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Luke Annison
7,724 PointsWhy doesn't this work?
Hi guys,
Could someone please tell me why my code doesn't work/solve the challenge?
Many thanks
import random
class Die:
def __init__(self, sides=2):
if sides < 2:
raise ValueError("Can't have fewer than two sides")
self.sides = sides
self.value = random.randint(1, sides)
def __int__(self):
return self.value
def __add__(self, other):
return int(self) + other
def __radd__(self, other):
return self + other
class D20(Die):
def __init__(self):
super().__init__(sides=20)
class Hand(list):
@property
def total(self):
return sum(self)
def roll(cls, diceNo):
hand = Hand()
for _ in range(diceNo):
self.append(D20())
return hand
4 Answers
Chris Freeman
Treehouse Moderator 68,423 PointsSorry, I missed the syntax error in the import statement. The format should be:
from module import object
So,
from dice import D20
Also, the correct posting formatting uses backticks: ```python. you have been using three single quotation marks.
The backtick is in the upper left of keyboard near the 1 key.
Post back if you need more help. Good luck!!!
Chris Freeman
Treehouse Moderator 68,423 PointsYou are very close!!
- need to import
D20fromdice - add
@classmethodtorollmethod - reference the current class as
cls()instead ofHand
Post back if you need more help. Good luck!!!
Luke Annison
7,724 PointsHey! Thanks! Tried this but not quite there yet:
import D20 from dice
class Hand(list):
@property
def total(self):
return sum(self)
@classmethod
def roll(cls, diceNo):
hand = cls()
for _ in range(diceNo):
self.append(D20())
return hand
Chris Freeman
Treehouse Moderator 68,423 Pointsself is not defined in the roll method. You have defined the new object name as hand, so it should be hand.append
Luke Annison
7,724 PointsHi Chris,
Thanks, but sorry it still doesn't quite work for me! Could you please take hopefully a final look:
import D20 from dice
class Hand(list):
@property
def total(self):
return sum(self)
@classmethod
def roll(cls, diceNo):
hand = cls()
for _ in range(diceNo):
hand.append(D20())
return hand