TemplateDoesNotExist: polls/question_detail.html Django tutorial

Studied the tutorial up to the seventh part. Everything was fine until I decided to launch my application. After launch, I added a multiple choice question. The error occurs after I click on a question to answer it. Long searches for an answer did not bring any results. Please help.

I get this error:

TemplateDoesNotExist at /polls/1/  polls/question_detail.html  Request Method: GET  Request URL:    http://127.0.0.1:8000/polls/1/  Django Version: 4.0.dev20210118085850  Exception Type: TemplateDoesNotExist  Exception Value:      polls/question_detail.html  Exception Location: c:\users\mrand\django\django\template\loader.py, line 47, in select_template  Python Executable:  C:\Users\mrand\Anaconda3\envs\mysite\python.exe  Python Version: 3.8.6  Python Path:      ['C:\\Users\\mrand\\mysite',   'C:\\Users\\mrand\\Anaconda3\\envs\\mysite\\python38.zip',   'C:\\Users\\mrand\\Anaconda3\\envs\\mysite\\DLLs',   'C:\\Users\\mrand\\Anaconda3\\envs\\mysite\\lib',   'C:\\Users\\mrand\\Anaconda3\\envs\\mysite',   'C:\\Users\\mrand\\Anaconda3\\envs\\mysite\\lib\\site-packages',   'c:\\users\\mrand\\django',   'C:\\Users\\mrand\\Anaconda3\\envs\\mysite\\lib\\site-packages\\win32',   'C:\\Users\\mrand\\Anaconda3\\envs\\mysite\\lib\\site-packages\\win32\\lib',   'C:\\Users\\mrand\\Anaconda3\\envs\\mysite\\lib\\site-packages\\Pythonwin']  Server time:    Wed, 27 Jan 2021 01:15:15 +0300  

Traceback:

Environment:      Request Method: GET  Request URL: http://127.0.0.1:8000/polls/1/    Django Version: 4.0.dev20210118085850  Python Version: 3.8.6  Installed Applications:  ['polls.apps.PollsConfig',   'django.contrib.admin',   'django.contrib.auth',   'django.contrib.contenttypes',   'django.contrib.sessions',   'django.contrib.messages',   'django.contrib.staticfiles']  Installed Middleware:  ['django.middleware.security.SecurityMiddleware',   'django.contrib.sessions.middleware.SessionMiddleware',   'django.middleware.common.CommonMiddleware',   'django.middleware.csrf.CsrfViewMiddleware',   'django.contrib.auth.middleware.AuthenticationMiddleware',   'django.contrib.messages.middleware.MessageMiddleware',   'django.middleware.clickjacking.XFrameOptionsMiddleware']    Template loader postmortem  Django tried loading these templates, in this order:    Using engine django:      * django.template.loaders.filesystem.Loader: C:\Users\mrand\mysite\templates\polls\question_detail.html (Source does not exist)      * django.template.loaders.app_directories.Loader: C:\Users\mrand\mysite\polls\templates\polls\question_detail.html (Source does not exist)      * django.template.loaders.app_directories.Loader: c:\users\mrand\django\django\contrib\admin\templates\polls\question_detail.html (Source does not exist)      * django.template.loaders.app_directories.Loader: c:\users\mrand\django\django\contrib\auth\templates\polls\question_detail.html (Source does not exist)        Traceback (most recent call last):    File "c:\users\mrand\django\django\core\handlers\exception.py", line 47, in inner      response = get_response(request)    File "c:\users\mrand\django\django\core\handlers\base.py", line 204, in _get_response      response = response.render()    File "c:\users\mrand\django\django\template\response.py", line 105, in render      self.content = self.rendered_content    File "c:\users\mrand\django\django\template\response.py", line 81, in rendered_content      template = self.resolve_template(self.template_name)    File "c:\users\mrand\django\django\template\response.py", line 63, in resolve_template      return select_template(template, using=self.using)    File "c:\users\mrand\django\django\template\loader.py", line 47, in select_template      raise TemplateDoesNotExist(', '.join(template_name_list), chain=chain)    Exception Type: TemplateDoesNotExist at /polls/1/  Exception Value: polls/question_detail.html  

Views.py

from django.shortcuts import render    # Create your views here.  from django.http import HttpResponse  def vote(request, question_id):      return HttpResponse("You're voting on question %s." % question_id)    from django.http import HttpResponse  from django.template import loader    from .models import Question      def index(request):      latest_question_list = Question.objects.order_by('-pub_date')[:5]      template = loader.get_template('polls/index.html')      context = {          'latest_question_list': latest_question_list,      }      return HttpResponse(template.render(context, request))  # Leave the rest of the views (detail, results, vote) unchanged  from django.http import Http404  from django.shortcuts import render    from .models import Question  # ...  def detail(request, question_id):      try:          question = Question.objects.get(pk=question_id)      except Question.DoesNotExist:          raise Http404("Question does not exist")      return render(request, 'polls/detail.html', {'question': question})    from django.shortcuts import get_object_or_404, render    from .models import Question  # ...  def detail(request, question_id):      question = get_object_or_404(Question, pk=question_id)      return render(request, 'polls/detail.html', {'question': question})    from django.http import HttpResponse, HttpResponseRedirect  from django.shortcuts import get_object_or_404, render  from django.urls import reverse    from .models import Choice, Question  # ...  def vote(request, question_id):      question = get_object_or_404(Question, pk=question_id)      try:          selected_choice = question.choice_set.get(pk=request.POST['choice'])      except (KeyError, Choice.DoesNotExist):          # Redisplay the question voting form.          return render(request, 'polls/detail.html', {              'question': question,              'error_message': "You didn't select a choice.",          })      else:          selected_choice.votes += 1          selected_choice.save()          # Always return an HttpResponseRedirect after successfully dealing          # with POST data. This prevents data from being posted twice if a          # user hits the Back button.          return HttpResponseRedirect(reverse('polls:results', args=(question.id,)))    from django.shortcuts import get_object_or_404, render    def results(request, question_id):      question = get_object_or_404(Question, pk=question_id)      return render(request, 'polls/results.html', {'question': question})    from django.http import HttpResponseRedirect  from django.shortcuts import get_object_or_404, render  from django.urls import reverse  from django.views import generic    from .models import Choice, Question  import datetime  from django.utils import timezone    class IndexView(generic.ListView):      template_name = 'polls/index.html'      context_object_name = 'latest_question_list'           def get_queryset(self):          """          Return the last five published questions (not including those set to be          published in the future).          """          return Question.objects.filter(              pub_date__lte=timezone.now()      ).order_by('-pub_date')[:5]      class DetailView(generic.DetailView):      model = Question      template_name = 'polls/detail.html'      class ResultsView(generic.DetailView):      model = Question      template_name = 'polls/results.html'      def vote(request, question_id):      ... # same as above, no changes needed.    class DetailView(generic.DetailView):      ...      def get_queryset(self):          """          Excludes any questions that aren't published yet.          """          return Question.objects.filter(pub_date__lte=timezone.now())  

Settings.py

import os  from pathlib import Path    # Build paths inside the project like this: BASE_DIR / 'subdir'.  BASE_DIR = Path(__file__).resolve().parent.parent      # Quick-start development settings - unsuitable for production  # See https://docs.djangoproject.com/en/dev/howto/deployment/checklist/    # SECURITY WARNING: keep the secret key used in production secret!  SECRET_KEY = 'django-insecure-&6_7o3ob-kr=@!hoyu&-&8t8+t7r5_-9ejnz4lrehwvwd5=i+a'    # SECURITY WARNING: don't run with debug turned on in production!  DEBUG = True    ALLOWED_HOSTS = []      # Application definition    INSTALLED_APPS = [      'polls.apps.PollsConfig',      'django.contrib.admin',      'django.contrib.auth',      'django.contrib.contenttypes',      'django.contrib.sessions',      'django.contrib.messages',      'django.contrib.staticfiles',  ]    MIDDLEWARE = [      'django.middleware.security.SecurityMiddleware',      'django.contrib.sessions.middleware.SessionMiddleware',      'django.middleware.common.CommonMiddleware',      'django.middleware.csrf.CsrfViewMiddleware',      'django.contrib.auth.middleware.AuthenticationMiddleware',      'django.contrib.messages.middleware.MessageMiddleware',      'django.middleware.clickjacking.XFrameOptionsMiddleware',  ]    ROOT_URLCONF = 'mysite.urls'    TEMPLATES = [      {          'BACKEND': 'django.template.backends.django.DjangoTemplates',          'DIRS': [os.path.join(BASE_DIR, 'templates')],          'APP_DIRS': True,          'OPTIONS': {              'context_processors': [                  'django.template.context_processors.debug',                  'django.template.context_processors.request',                  'django.contrib.auth.context_processors.auth',                  'django.contrib.messages.context_processors.messages',              ],          },      },  ]    WSGI_APPLICATION = 'mysite.wsgi.application'      # Database  # https://docs.djangoproject.com/en/dev/ref/settings/#databases    DATABASES = {      'default': {          'ENGINE': 'django.db.backends.sqlite3',          'NAME': BASE_DIR / 'db.sqlite3',      }  }      # Password validation  # https://docs.djangoproject.com/en/dev/ref/settings/#auth-password-validators    AUTH_PASSWORD_VALIDATORS = [      {          'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',      },      {          'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',      },      {          'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',      },      {          'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',      },  ]      # Internationalization  # https://docs.djangoproject.com/en/dev/topics/i18n/    LANGUAGE_CODE = 'en-us'    TIME_ZONE = 'Europe/Moscow'    USE_I18N = True    USE_L10N = True    USE_TZ = True      # Static files (CSS, JavaScript, Images)  # https://docs.djangoproject.com/en/dev/howto/static-files/    STATIC_URL = '/static/'    # Default primary key field type  # https://docs.djangoproject.com/en/dev/ref/settings/#default-auto-field    DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'    #TEMPLATE_DIR = os.path.join(BASE_DIR,'templates')  TEMPLATES = [      {          'BACKEND': 'django.template.backends.django.DjangoTemplates',          'DIRS': [os.path.join(BASE_DIR, 'templates')],          'APP_DIRS': True,          'OPTIONS': {              'context_processors': [                  'django.template.context_processors.debug',                  'django.template.context_processors.request',                  'django.contrib.auth.context_processors.auth',                  'django.contrib.messages.context_processors.messages',              ],          },      },  ]  

Urls.py

from django.contrib import admin  from django.urls import path    urlpatterns = [      path('admin/', admin.site.urls),  ]    from django.contrib import admin  from django.urls import include, path    urlpatterns = [      path('polls/', include('polls.urls')),      path('admin/', admin.site.urls),  ]  

https://stackoverflow.com/questions/65910490/templatedoesnotexist-polls-question-detail-html-django-tutorial January 27, 2021 at 06:58AM