类型错误:无法创建一致的方法解析顺序 (MRO) [英] TypeError: Cannot create a consistent method resolution order (MRO)

问题描述

这是我计划用于我的游戏的代码，但它抱怨 MRO 错误:

This is the code which I plan to use for my game, but it complains about an MRO error:

class Player:
    pass

class Enemy(Player):
    pass

class GameObject(Player, Enemy):
    pass

g = GameObject()

推荐答案

你的 GameObject 继承自 Player and Enemy.因为Enemy已经继承自Player，Python现在无法确定首先查找哪个类；Player 或 Enemy，这将覆盖 Player 中定义的内容.

Your GameObject is inheriting from Player and Enemy. Because Enemy already inherits from Player Python now cannot determine what class to look methods up on first; either Player, or on Enemy, which would override things defined in Player.

你不需要在这里命名Enemy的所有基类；只是从那个类继承:

You don't need to name all base classes of Enemy here; just inherit from that one class:

class GameObject(Enemy):
    pass

Enemy 已经包含了 Player，不需要再次包含.

Enemy already includes Player, you don't need to include it again.

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