Python 属性错误 : type object has no attribute

Question

我是 Python 和一般编程的新手，尝试自学一些面向对象的 Python，但在我最新的项目中遇到了这个错误:

AttributeError: type object 'Goblin' has no attribute 'color'

我有一个文件来创建“Monster”类和一个从 Monster 类扩展的“Goblin”子类。当我导入这两个类时，控制台不返回任何错误

>>>from monster import Goblin
>>>

即使创建一个实例也没有问题:

>>>Azog = Goblin
>>>

但是当我调用我的 Goblin 类的属性时，控制台会在顶部返回错误，我不明白为什么。完整代码如下:

import random

COLORS = ['yellow','red','blue','green']


class Monster:
    min_hit_points = 1
    max_hit_points = 1
    min_experience = 1
    max_experience = 1
    weapon = 'sword'
    sound = 'roar'

    def __init__(self, **kwargs):
        self.hit_points = random.randint(self.min_hitpoints, self.max_hit_points)
        self.experience = random.randint(self.min_experience,  self.max_experience)
        self.color = random.choice(COLORS)

        for key,value in kwargs.items():
            setattr(self, key, value)

    def battlecry(self):
        return self.sound.upper()


class Goblin(Monster):
    max_hit_points = 3
    max_experience = 2
    sound = 'squiek'

Answer 1

您不是在创建实例，而是引用类 Goblin 本身，如错误所示:

AttributeError: type object 'Goblin' has no attribute 'color'

将你的行更改为 Azog = Goblin()