Python 属性错误：'；设置'；对象没有属性'；项目'；在django

我在DRF中进行自定义，以便在正文或标题中输入空值时给出错误响应值。但是，压缩代码后，测试结果会出现以下错误

AttributeError:“set”对象没有属性“items”

我不知道这个错误是什么意思，也不知道为什么会发生。你能告诉我我的代码有什么问题吗？这是我的密码

views.py

class CreatePostView (ModelViewSet) :
    serializer_class = PostSerializer
    permission_classes = [IsAuthenticated]
    queryset = Post.objects.all()

序列化程序.py

class PostSerializer (serializers.ModelSerializer) :
    author = serializers.CharField(source='author.username', read_only=True)
    title = serializers.CharField(allow_null=True)
    text = serializers.CharField(allow_null=True)
    image = ImageSerializer(many=True)

    class Meta:
        model = Post
        fields = ['pk', 'author', 'title', 'text', 'like', 'liker', 'image', 'view']

    def validate (self, attrs) :
        title = attrs.get('title', '')
        text = attrs.get('text', '')

        error = {}

        if title is None and text is None :
            error['message'] = '제목과 본문을 넣어주세요.'
            raise serializers.ValidationError(error)

        if title is None  :
            error['message'] = '제목을 넣어주세요.'
            raise serializers.ValidationError(error)

        if text is None :
            error['message'] = '본문을 넣어주세요.'
            raise serializers.ValidationError(error)

        return attrs

    def create (self, validated_data) :
        return Post.objects.create(**validated_data)

回溯

Traceback (most recent call last):
  File "C:\Users\kurak\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "C:\Users\kurak\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Users\kurak\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\kurak\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Users\kurak\AppData\Local\Programs\Python\Python38-32\lib\site-packages\rest_framework\viewsets.py", line 102, in view
    for method, action in actions.items():
AttributeError: 'set' object has no attribute 'items'

url.py

from django.urls import path, include
from .views import CreatePostView
from django.conf import settings
from django.conf.urls.static import static

urlpatterns = [
    path('post', CreatePostView.as_view({'post', 'create'})),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

---

它应该是

{'post'：'create'}

而不是

{'post'，'create'}

添加完整错误traceback@ArakkalAbu我添加了你的网址。py@ArakkalAbu我也加了