class A(object):

    def __init__(self):
        # self.x1 = {}
        object.__setattr__(self, "x", {})

    # def __getattr__(self, item):
    #     print(item)

    def __setattr__(self, key, value):
        print(self.x)
        print(key, value)
        self.x[key] = value
        print(self.x)


a = A()
a.name = "chr"