Regarding Django error message TemplateDoesNotExist at / - django

Question

I am trying to do an application for a blog by Django, but the top page (post_list.html) is not displayed.
The following error message will be displayed.
TemplateDoesNotExist at /
blogapp3/post_list.html
Request Method: GET
Request URL: http://127.0.0.1:8000/
Django Version: 1.11.4
Exception Type: TemplateDoesNotExist
Exception Value:
blogapp3/post_list.html
Exception Location: F:\01_pro\kaso3\lib\site-packages\django\template\loader.py in select_template, line 53
Python Executable: F:\01_pro\kaso3\Scripts\python.exe
Python Version: 3.6.2
Template-loader postmortem
Django tried loading these templates, in this order:
Using engine django:
django.template.loaders.filesystem.Loader: F:\01_pro\blogpro3\blogapp3\templates\blog\blogapp3\post_list.html (Source does not exist)
django.template.loaders.app_directories.Loader: F:\01_pro\kaso3\lib\site-packages\django\contrib\admin\templates\blogapp3\post_list.html (Source does not exist)
django.template.loaders.app_directories.Loader: F:\01_pro\kaso3\lib\site-packages\django\contrib\auth\templates\blogapp3\post_list.html (Source does not exist)
django.template.loaders.app_directories.Loader: F:\01_pro\blogpro3\blogapp3\templates\blogapp3\post_list.html (Source does not exist)
I had been pointed out that the file structure is wrong from other websites, but I think this file doesn't seem to be strange. File structure is as follows.
F:\01_PRO\BLOGPRO3
│ db.sqlite3
│ manage.py
│
├─blogapp3
│ │ admin.py
│ │ apps.py
│ │ forms.py
│ │ models.py
│ │ tests.py
│ │ urls.py
│ │ views.py
│ │ __init__.py
│ │
│ ├─migrations
│ │ │ 0001_initial.py
│ │ | 0002_auto_20170905_1930.py
│ │ └─ __init__.py
│ │
│ │
│ ├─static
│ │ ├─css
│ │ │ blog.css
│ │ │
│ │ └─js
│ │
│ └─templates
│ ├─blog
│ │ about.html
│ │ base.html
│ │ comment_form.html
│ │ post_confirm_delete.html
│ │ post_detail.html
│ │ post_draft_list.html
│ │ post_form.html
│ │ post_list.html
│ │
│ └─registration
│ login.html
│
│
└─blogpro3
settings.py
urls.py
wsgi.py
__init__.py
Below, I display urls.py, views.py, settings.py in order to solve this issue.
blogpro3/urls.py
from django.conf.urls import url, include
from django.contrib import admin
from django.contrib.auth import views
urlpatterns = [
url(r'^admin/',admin.site.urls),
url(r'',include('blogapp3.urls')),
url(r'^accounts/login/$', views.login, name='login'),
url(r'^accounts/logout/$', views.logout, name='logout', kwargs={'next_page': '/'}),
]
blogapp3/urls.py
from django.conf.urls import url
from . import views
urlpatterns = [
url(r'^$',views.PostListView.as_view(), name='post_list'),
url(r'^about/$',views.AboutView.as_view(),name='about'),
url(r'^post/(?P<pk>\d+)$',views.PostDetailView.as_view(),name='post_detail'),
url(r'^post/new/$',views.CreatePostView.as_view(),name='post_new'),
url(r'^post/(?P<pk>\d+)/edit/$',views.PostUpdateView.as_view(),name='post_edit'),
url(r'^post/(?P<pk>\d+)/remove/$',views.PostDetailView.as_view(),name='post_remove'),
url(r'^drafts/$',views.DraftListView.as_view(),name='post_draft_list'),
url(r'^post/(?P<pk>\d+)/comment/$',views.add_comment_to_post,name='add_comment_to_post'),
url(r'^comment/(?P<pk>\d+)/approve/$',views.comment_approve,name='comment_approve'),
url(r'^comment/(?P<pk>\d+)/remove/$',views.comment_remove,name='comment_remove'),
url(r'^post/(?P<pk>\d+)/publish/$',views.post_publish,name='post_publish'),
]
views.py
from django.shortcuts import render,get_object_or_404,redirect
from django.contrib.auth.decorators import login_required
from blogapp3.models import Post,Comment
from django.utils import timezone
from blogapp3.forms import PostForm,CommentForm
from django.views.generic import (TemplateView,ListView,
DetailView,CreateView,
UpdateView,DeleteView)
from django.urls import reverse_lazy
from django.contrib.auth.mixins import LoginRequiredMixin
# Create your views here.
class AboutView(TemplateView):
template_name = 'about.html'
class PostListView(ListView):
model = Post
def get_queryset(self):
return Post.objects.filter(published_date__lte=timezone.now()).order_by('-published_date')
class PostDetailView(DetailView):
model = Post
class CreatePostView(LoginRequiredMixin,CreateView):
login_url = '/login/'
redirect_field_name = 'blog/post_detail.html'
form_class = PostForm
model = Post
class PostUpdateView(LoginRequiredMixin,UpdateView):
login_url = '/login/'
redirect_field_name = 'blog/post_detail.html'
form_class = PostForm
model = Post
class PostDleteView(LoginRequiredMixin,DeleteView):
model = Post
success_url = reverse_lazy('post_list')
class DraftListView(LoginRequiredMixin,ListView):
login_url = '/login/'
redirect_field_name = 'blog/post_list.html'
model = Post
def get_queryset(self):
return Post.objects.filter(published_date__isnull=True).order_by('created_date')
##################################
##################################
#login_required
def post_publish(request,pk):
post = get_object_or_404(Post,pk=pk)
post.publish()
return redirect('post_detail',pk=pk)
#login_required
def add_comment_to_post(request,pk):
post = get_object_or_404(Post,pk=pk)
if request.method == 'POST':
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(commit=False)
comment.post = post
comment.save()
return redirect('post_detail',pk=post.pk)
else:
form = CommentForm()
return render(request,'blog/comment_form.html',{'form':form})
#login_required
def comment_approve(request,pk):
comment = get_object_or_404(Comment,pk=pk)
comment.approve()
return redirect('post_detail',pk=comment.post.pk)
#login_required
def comment_remove(request,pk):
comment = get_object_or_404(Comment,pk=pk)
post_pk = comment.post.pk
comment.delete()
return redirect('post_detail',pk=post_pk)
settings.py
import os
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
TEMPLATE_DIRS = os.path.join(BASE_DIR,'blogapp3/templates/blog')
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'blogapp3.apps.BlogappConfig',
]
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 = 'blogpro3.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [TEMPLATE_DIRS,],
'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 = 'blogpro3.wsgi.application'
# Database
# https://docs.djangoproject.com/en/1.11/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
}
}
# Password validation
# https://docs.djangoproject.com/en/1.11/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/1.11/topics/i18n/
LANGUAGE_CODE = 'ja'
TIME_ZONE = 'Asia/Tokyo'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.11/howto/static-files/
STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR,'Static')
LOGIN_REDIRECT_URL = '/'
TEMPLATE_DIRS = (os.path.join(BASE_DIR, 'templates'),)
What I am paying attention to is the following part in the error message.
Template-loader postmortem
Django tried loading these templates, in this order:
Using engine django:
django.template.loaders.filesystem.Loader: F:\01_pro\blogpro3\blogapp3\templates\blog\blogapp3\post_list.html (Source does not exist)
The above path should be correct for following path.
F:\01_pro\blogpro3\blogapp3\templates\blog\post_list.html
However, I don't know how to fix above path.
I am glad if you tell me how to solve this issue.

Answer 1

Your file structure confirms exactly what the error says: there is no templates directory named "blogapp3", so there is no template named "blogapp3/post_list.html".
You should move your templates into the "blogapp3" directory.