Python 重写DRF令牌身份验证

我想允许用户拥有多个令牌，因此决定重写令牌模型。结果造成

class TokenAuthentication(rest_framework.authentication.TokenAuthentication):
    model = Token

在添加到

REST\u框架的我的设置中

'DEFAULT_AUTHENTICATION_CLASSES': (
    'users.authentication.TokenAuthentication',
)

也修改

class ObtainAuthToken(APIView):
    authentication_classes = ()
    throttle_classes = ()
    permission_classes = ()
    parser_classes = (parsers.FormParser, parsers.MultiPartParser, parsers.JSONParser,)
    renderer_classes = (renderers.JSONRenderer,)
    serializer_class = AuthTokenSerializer


    def post(self, request, *args, **kwargs):
        serializer = self.serializer_class(data=request.data)
        serializer.is_valid(raise_exception=True)
        user = serializer.validated_data['user']
        name = serializer.validated_data['name']
        token, created = Token.objects.get_or_create(user=user, name=name)
        return Response({'token': token.key})


obtain_auth_token = ObtainAuthToken.as_view()

和AuthTokenSerializer返回名称

最后在URL中

url(r'^token-auth/', obtain_auth_token),

我认为一切都是正确的，但不断地犯错误

 File "/home/me/code/python/OCManager/core/users/authentication.py", line 4, in <module>
    from rest_framework.views import APIView
ImportError: cannot import name 'APIView'

有什么线索吗

令牌类修改如下：

class Token(rest_framework.authtoken.models.Token):
    # key is no longer primary key, but still indexed and unique
    key = models.CharField(_("Key"), max_length=40, db_index=True, unique=True)
    # relation to user is a ForeignKey, so each user can have more than one token
    user = models.ForeignKey(
        settings.AUTH_USER_MODEL, related_name='auth_tokens',
        on_delete=models.CASCADE, verbose_name=_("User")
    )
    name = models.CharField(_("Name"), max_length=64)

    class Meta:
        unique_together = (('user', 'name'),)

    def __str__(self):
        return self.user.username + " - " + self.name

---

我设法找到了问题所在。在同一个文件中使用TokenAuth扩展名导致了一些导入错误，似乎试图在其他文件中导入自身。解决方案正在移动

class TokenAuthentication(rest_framework.authentication.TokenAuthentication):
    model = Token

---

到另一个文件

确保您已从

rest\u framework.authentication

导入

TokenAuthentication

，而不是从

rest\u framework.authToken

class TokenAuthentication(rest_framework.authentication.TokenAuthentication):
    model = Token