Thanks, Jorge Gimeno this is working fine. On Fri, Feb 14, 2020 at 9:19 AM Jorge Gimeno <[email protected]> wrote:
> > > On Thu, Feb 13, 2020 at 7:16 PM Bhoopesh sisoudiya <[email protected]> > wrote: > >> Hi all, >> >> How to resolve this exception in generic view of rest-framework- api >> Exception=================== >> 2020-02-14 08:30:33,523 - D:\futuredatapoints\futuredatapoints\logs\ >> 14022020.log - ERROR >> ERROR:D:\futuredatapoints\futuredatapoints\logs\14022020.log: >> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Exception >> Start %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% >> 2020-02-14 08:30:33,523 - D:\futuredatapoints\futuredatapoints\logs\ >> 14022020.log - ERROR >> 2020-02-14 08:30:33,523 - D:\futuredatapoints\futuredatapoints\logs\ >> 14022020.log - ERROR >> ERROR:D:\futuredatapoints\futuredatapoints\logs\14022020 >> .log:Traceback (most recent call last): >> File >> "D:\futuredatapoints\env\lib\site-packages\django\core\handlers\base.py" >> , line 124, in _get_response >> >> response = wrapped_callback(request, *callback_args, **callback_kwargs) >> File >> "D:\futuredatapoints\env\lib\site-packages\django\views\decorators\csrf.py" >> , line 54, in wrapped_view >> return view_func(*args, **kwargs) >> File >> "D:\futuredatapoints\env\lib\site-packages\django\views\generic\base.py" >> , line 68, in view >> return self.dispatch(request, *args, **kwargs) >> File >> "D:\futuredatapoints\env\lib\site-packages\rest_framework\views.py" >> , line 479, in dispatch >> request = self.initialize_request(request, *args, **kwargs) >> File >> "D:\futuredatapoints\env\lib\site-packages\rest_framework\views.py" >> , line 380, in initialize_request >> authenticators=self.get_authenticators(), >> File >> "D:\futuredatapoints\env\lib\site-packages\rest_framework\views.py" >> , line 274, in get_authenticators >> return [auth() for auth in self.authentication_classes] >> File >> "D:\futuredatapoints\env\lib\site-packages\rest_framework\views.py" >> , line 274, in <listcomp> >> return [auth() for auth in self.authentication_classes] >> TypeError: 'list' object is not callable >> >> WARNING:django.request:Bad Request: /api/send/otp/ >> >> >> url====== =========================================================== >> url(r'^api/send/data/$',UserViewSetCustom.as_view(),name= >> 'user-view-set-custom'), >> >> >> view generic class ================ >> class UserViewSetCustom(generics.CreateAPIView): >> """ >> A simple CreateAPIView that for sending otp for user. >> """ >> # permission_classes = (AllowAny,) >> authentication_classes = [TokenAuthentication,], >> queryset = User.objects.all() >> def create(self, request): >> print("*******") >> return Response( >> data=jsonResponse([], >> msg=Message.getMessage('NOT_ALLOWED'), >> status=status.HTTP_200_OK), >> status=status.HTTP_200_OK, >> ) >> >> Thanks >> Bhoopesh Sisoudiya >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Django users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/django-users/CAAk3c1N0JBOFkF7tyMLJdMY3bh3H54r-QVh6_x-KW9peaRo9dA%40mail.gmail.com >> <https://groups.google.com/d/msgid/django-users/CAAk3c1N0JBOFkF7tyMLJdMY3bh3H54r-QVh6_x-KW9peaRo9dA%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > > I did some experimenting in the Python shell. What I found is this: > > jlgimeno@jlgimeno-Lenovo-G50-45 ~ python3.8 > Python 3.8.1 (default, Dec 31 2019, 11:21:33) > [GCC 9.2.1 20191008] on linux > Type "help", "copyright", "credits" or "license" for more information. > >>> a = [1] > >>> b = [1,] > >>> c = [1,], > >>> a > [1] > >>> b > [1] > >>> c > ([1],) > > The variables a and b are both lists with a single object, but c is > different. It is a tuple, with the first (and only) element is a list. c > is similar to your authentication_classes variable in your view because of > that trailing comma which makes it a tuple. As you can see in the last two > lines of your traceback, django rest framework is trying to get a list of > authenticators using a list comprehension, by calling each class that is an > element of self.authentication_classes. It's not getting a callable back, > it's getting back a list. Lists are not callables, and so Python raises an > exception. > > To fix this, remove the trailing comma in your authentication_classes > variable like so: > authentication_classes = [TokenAuthentication,] > > That should work. Hope this helped! > > -Jorge > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/CANfN%3DK-juSt_MBYz3c7vvj%3DFmdA8iFpMhCQOO6u85Sgrj2dYLw%40mail.gmail.com > <https://groups.google.com/d/msgid/django-users/CANfN%3DK-juSt_MBYz3c7vvj%3DFmdA8iFpMhCQOO6u85Sgrj2dYLw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Django users" group. 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