【Python】(Essential decorator) 类级装饰器相关行为（暂时找不到合适的词描述）

"""filename: try-decorator.py"""

class AsyncClient:
    def event(self, fn):
        def wrapper(self, *args, **kwargs):
            return fn(self, *args, **kwargs)
        return wrapper


class Handler:
    sio = AsyncClient()

    @sio.event
    def foo(self, msg):
        print(f'foo => {msg = }')

    @sio.event
    def bar(self, msg):
        print(f'bar => {msg = }')


if __name__ == '__main__':
    obj = Handler()
    obj.foo('hehe')
    obj.bar('haha')

执行效果：

$ python try-decorator.py
foo => msg = 'hehe'
bar => msg = 'haha'