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Python

Posted by Aaron Banerjee
Aaron Banerjee
6,876 Points

does @class method and __init__ correlate/work together if written in the same class

from dice import D20


class Hand(list):
    def __init__(self, size=0, die_class=D20, *args, **kwargs):
        super().__init__()
        for _ in range(size):
            self.append(die_class())
    #  self.sort()         
    @classmethod
    def roll(cls, size):
        return cls(size)

    @property
    def total(self):
        return sum(self)

in this case here, if i use the roll class method to get the classes size, does the init use the classes size in order to to create a list for the class. This is for the rpg roller code challenge by the way thanks for any help

1 Answer

Eray Ates
Eray Ates
14,292 Points
Eray Ates
Eray Ates
14,292 Points

I'm not sure you ask for this but clean our heads

...
    @classmethod #use this one return an instance of class or change general attribute of class
    def roll(cls, size): 
        return cls(size) # now cls turn to Hand like that Hand(size) and eval Hand(size) and this goes to __init__ method

oneInstance = Hand.roll(5)

secondInstance = Hand(5)

So same mean try this to get length:

    #without classmethod
    def roll(self):
        return len(self)