Python 3.x 如何在Python中使用可变字段创建可散列和可比较的自定义对象？

我想用可变字段定义一个可散列类，但如果我自己定义

\uuuuueq\uuuuu

方法（这是我绝对想做的），它在默认情况下不再是可散列的，我还需要定义

\uuuuhash\uuuuuu

方法

如果我定义了

\uuuuuuuuuuuuuuuuuuuuuuuu

方法，这样它就比较了

id（）

值，就像我在定义

\uuuuuueq\uuuuuuuuu

之前默认做的那样，我会得到奇怪的结果

根据，我必须以与

\uuuuu hash\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

相同的方式定义

\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

具体来说，我想用两个包含整数的可变字段定义对象：

class CustomObj:
    def __init__(self, a, b):
        self.a = a
        self.b = b

ObjA = CustomObj(1, 2)
ObjB = CustomObj(1, 2)

我希望能够将它们相互比较
ObjA==ObjB
，以及简单元组
ObjA==（1,2）
。我还希望能够将它们存储在一个集合
myset=set（）。我怎样才能做到这一点

这是我目前的代码，但它的行为肯定不正确：

class Agent:
    def __init__(self, x, y):
        self.x = x
        self.y = y

    def __eq__(self, other):
        try:
            # Try comparing two agents
            return (self.x == other.x and self.y == other.y
                        and isinstance(other, Agent))
        except AttributeError:
            # If it fails, compare an agent and a tuple
            if isinstance(other, tuple) and len(other) == 2:
                return self.x == other[0] and self.y == other[1]
            else:
                return NotImplemented

    def __hash__(self):
        return id(self)