Python 如何将attrs类列表嵌套到attrs类中

我有一张词典 list ，我想用python-attrs来把它们转换成班级.

以下是示例数据:

[[characters]]
first_name = 'Duffy'
last_name = 'Duck'

[[characters]]
first_name = 'Bugs'
last_name = 'Bunny'

[[characters]]
first_name = 'Sylvester'
last_name = 'Pussycat'

[[characters]]
first_name = 'Elmar'
last_name = 'Fudd'

[[characters]]
first_name = 'Tweety'
last_name = 'Bird'

[[characters]]
first_name = 'Sam'
last_name = 'Yosemite'

[[characters]]
first_name = 'Wile E.'
last_name = 'Coyote'

[[characters]]
first_name = 'Road'
last_name = 'Runner'

在阅读完内容后，这将变成一本词典:

{'characters': [{'first_name': 'Duffy', 'last_name': 'Duck'},
  {'first_name': 'Bugs', 'last_name': 'Bunny'},
  {'first_name': 'Sylvester', 'last_name': 'Pussycat'},
  {'first_name': 'Elmar', 'last_name': 'Fudd'},
  {'first_name': 'Tweety', 'last_name': 'Bird'},
  {'first_name': 'Sam', 'last_name': 'Yosemite'},
  {'first_name': 'Wile E.', 'last_name': 'Coyote'},
  {'first_name': 'Road', 'last_name': 'Runner'}]}

我的课程是这样的:

@define(kw_only=True)
class Character:
    first_name: str
    last_name: str

@define
class LooneyToons:
    characters: List[Character] = field(factory=list, converter=Character)

但它不起作用: TypeError: Character.__init__() takes 1 positional argument but 2 were given

当然，我可以稍微修改一下类，并使用下面的代码(它可以工作):

@define
class LooneyToons:
    characters: List[Character]

> LooneyToons([Character(**x) for x in d['characters']])
LooneyToons(characters=[Character(first_name='Duffy', last_name='Duck'), Character(first_name='Bugs', last_name='Bunny'), Character(first_name='Sylvester', last_name='Pussycat'), Character(first_name='Elmar', last_name='Fudd'), Character(first_name='Tweety', last_name='Bird'), Character(first_name='Sam', last_name='Yosemite'), Character(first_name='Wile E.', last_name='Coyote'), Character(first_name='Road', last_name='Runner')])

但(在我看来)在LooneyToons类中通过将d['characters']作为参数提供给类来处理这一问题会更优雅.

对我有什么提示吗？我已经判断了cattrs个，但我不明白它对我的情况可能有什么用处.