Как исправить ошибку «Ошибка обновления словарного элемента № 0 имеет длину 104; требуется 2»

Question

Я хочу создать страницу входа в систему, когда имя пользователя и пароль неверны, возникает эта ошибка "элемент последовательности обновления словаря # 0 имеет длину ... требуется".Как исправить эту ошибку?

forms.py
class LoginForm(forms.Form):
    username = forms.CharField(max_length=250, required=False)
    password = forms.CharField(max_length=250, required=False)

views.py
class LoginView(View):
    template_name = 'login/index.html'
    form_class = LoginForm

    def get(self, request):
        form = self.form_class()
        return render(request, self.template_name, {'form': form})

    def post(self, request):
        form = self.form_class(request.POST)
        if form.is_valid():
            username = form.cleaned_data['username']
            password = form.cleaned_data['password']
            user = authenticate(username=username, password=password)
            if user is not None:
                login(request, user)
                next_var = request.GET.get('next')
                # redirect to url in next var else return to login home page
                return redirect('%s' % next_var) if next_var else redirect('%s' % settings.LOGIN_REDIRECT_URL)
        return render(request, self.template_name, {'form': form})

When the fields are not filled there is this error "dictionary update sequence element #0 has length 104; 2 is required" that appears. but when I log in and I go back to the login page to log in without anything filled in I'm reported that the fields are not filled

Это мой urls.py

from django.urls import path, include

from .views import login, signup, logout, settings, profile

urlpatterns = [
    path('signup/', signup.SignupView.as_view(), name='signup'),
    path('signin/', login.LoginView.as_view(), name='signin'),
    path('logout/', logout.LogoutView.as_view(), name='logout'),

    path('account/', settings.SettingView.as_view(), name='account'),
    path('account/avatar/', settings.SetAvatarView.as_view(), name='set-avatar'),
    path('account/name/', settings.SetNameView.as_view(), name='set-name'),
    path('account/biography/', settings.SetBiographyView.as_view(), name='set-biography'),
    path('account/birthday', settings.SetBirthdayView.as_view(), name='set-birthday'),
    path('account/gender/', settings.SetGenderView.as_view(), name='set-gender'),
    path('account/password/', settings.SetPasswordView.as_view(), name='set-password'),
    path('account/dark-theme/', settings.SetDarkView.as_view(), name='set-dark-mode'),
    path('account/color/', settings.SetColorView.as_view(), name='set-color'),

    path('u/<int:id>/', profile.ProfileView.as_view(), name='profile'),
]

Answer 1

thanks i have solved the problem by putting the code of context in comment.

from . models import AccountModel

def accounts(request):
    if request.user.is_authenticated:
        account = AccountModel.objects.get(user__id=request.user.id)
        return {'account': account}
    else:
        return request