python - Python中的动态继承

Question

假设我有 2 个不同的类实现

class ParentA:
    def initialize(self):
        pass

    def some_event(self):
        pass

    def order(self, value):
        # handle order in some way for Parent A


class ParentB:
    def initialize(self):
        pass

    def some_event(self):
        pass

    def order(self, value):
        # handle order in another for Parent B

我怎样才能动态地让一些第三类继承自 ParentA 或 ParentB 基于这样的东西？

class MyCode:
    def initialize(self):
        self.initial_value = 1

    def some_event(self):
        # handle event
        order(self.initial_value)


# let MyCode inherit from ParentA and run
run(my_code, ParentA)

Answer 1

只需将类对象存储在一个变量中(在下面的示例中，它被命名为 base )，并在您的 class 的基类规范中使用该变量声明。

def get_my_code(base):

    class MyCode(base):
        def initialize(self):
          ...

    return MyCode

my_code = get_my_code(ParentA)