attrdict是第三方库，它提供的映射对象允许 它们的元素可以作为键和属性访问，需要安装。

pip install attrdict

示例代码1： ​

from attrdict import AttrDict

dic = {"name": "dgw", "age": 26}
ret = AttrDict(dic)
print(ret)
print()
print(ret.age)

运行结果：

示例代码2：

from attrdict import AttrDict

dic = {"name": "dgw", "age": 26, "info": {"province": "山东省", "city": "青岛市"}}
ret = AttrDict(dic)
print(ret)
print()
print()
print(.province)
print(.city)
print(ret("info").city)

运行结果：

示例代码3：

from attrdict import AttrDict

dic = {"name": "dgw", "age": 26, "info": {"province": "山东省", "city": "青岛市"},
       "teachers": [{"name": "张老师"}, {"name": "李老师"}]}
ret = AttrDict(dic)
print(ret)
print()
print()
print(.province)
print(.city)
print(ret.teachers)
for a in ret.teachers:
    print(a, type(a), )

运行结果：

默认情况下，相关的序列类型不是字节、str或unicode （例如，列表、元组）将自动转换为元组，其中 转换为属性的映射。