写torndb代码时发现d = db.query("select author from book limit 1;") 返回的对象既可以d[0].author又可以d[0]["author"]来访问.下面是给出方法

自己构造的字典

class ObjectDict(dict):    """Makes a dictionary behave like an object, with attribute-style access.    """    def __getattr__(self, name):        try:            return self[name]        except KeyError:            raise AttributeError(name)    def __setattr__(self, name, value):        self[name] = valued = ObjectDict()d.a = 4d["b"] = 6print d.a, d["a"]print d.b, d["b"]

d = {"a":4, "b":6}obj_d = type("klass", (object, ), d)print obj_d.a, obj_d.b