我得到'模块' object is not callable in Django Rest 框架

Question

我正在尝试学习 api 的 django rest 框架。 我正在关注文档并检查了所有导入，但出现类型错误：'module' object is not callable

视图.py

from rest_framework import viewsets
from .serializer import CategorySerializer
from .models import CategoryModel

class FirstView(viewsets.ModelViewSet):
    queryset = CategoryModel.objects.all().order_by('name')
    serializer_class = CategorySerializer

序列化程序.py

from rest_framework import serializers

from .models import CategoryModel

class CategorySerializer(serializers.ModelSerializer):
    class Meta:
        model = CategoryModel
        field = ['name', 'description']

网址.py

from django.urls import path, include

from rest_framework.routers import DefaultRouter
from . import views

router = DefaultRouter()

router.register(r'', views.FirstView)

urlpatterns = [
    path('', include(router.urls))
]

错误

Internal Server Error: /api/category/
Traceback (most recent call last):
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\rest_framework\viewsets.py", line 125, in view
    return self.dispatch(request, *args, **kwargs)
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\rest_framework\views.py", line 492, in dispatch
    request = self.initialize_request(request, *args, **kwargs)
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\rest_framework\viewsets.py", line 146, in initialize_request
    request = super().initialize_request(request, *args, **kwargs)
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\rest_framework\views.py", line 394, in initialize_request
    authenticators=self.get_authenticators(),
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\rest_framework\views.py", line 272, in get_authenticators
    return [auth() for auth in self.authentication_classes]
  File "C:\Users\aashu\.virtualenvs\lcodev-xFWoZVV6\lib\site-packages\rest_framework\views.py", line 272, in <listcomp>
    return [auth() for auth in self.authentication_classes]
TypeError: 'module' object is not callable

这是用于 DjangoRestFramework 的 settings.py

设置.py

REST_FRAMEWORK = {
     'DEFAULT_AUTHENTICATION_CLASSES': [
        'rest_framework.authentication.BasicAuthentication',
        'rest_framework.authentication.SessionAuthentication',
        'rest_framework.authtoken',
    ],
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'
    ]
}

Answer 1

您的设置配置错误。 手册说：

令牌认证

..

要使用TokenAuthentication方案，您需要配置身份验证类以包含TokenAuthentication ，并在INSTALLED_APPS设置中另外包含rest_framework.authtoken ：

 INSTALLED_APPS = [... 'rest_framework.authtoken' ]

rest_framework.authtoken将被放入INSTALLED_APPS ，而不是DEFAULT_AUTHENTICATION_CLASSES 。 我不完全确定文档暗示的内容将被放入DEFAULT_AUTHENTICATION_CLASSES中； 最有可能的：

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': [
        ...,
        'rest_framework.authentication.TokenAuthentication'
    ],
    ...
}