{"id":667,"date":"2020-12-28T15:19:42","date_gmt":"2020-12-28T12:19:42","guid":{"rendered":"https:\/\/www.etemkeskin.com\/?p=667"},"modified":"2020-12-28T15:26:13","modified_gmt":"2020-12-28T12:26:13","slug":"creating-custom-404-page-in-python-django","status":"publish","type":"post","link":"https:\/\/www.etemkeskin.com\/index.php\/2020\/12\/28\/creating-custom-404-page-in-python-django\/","title":{"rendered":"Creating Custom 404 Page in Python Django"},"content":{"rendered":"\n

When we develop a web application with Django, the user may enter a url<\/strong> that does not exist. In this case, Django will present the user with a standard 404 page<\/strong> that is not stylish. Instead, we can create custom 404 page in Django.<\/p>\n\n\n\n

You can learn how to create custom 404 page by following the steps below.<\/p>\n\n\n\n

Step 1<\/h4>\n\n\n\n

In order to see the 404 page we created, it is necessary to change DEBUG status to False in settings.py.<\/p>\n\n\n\n

DEBUG = False<\/code><\/p>\n\n\n\n

Step 2<\/h4>\n\n\n\n

Next we need to create an alternative 404.html page. We have to create this file in a location we want in the folder where our templates are.<\/p>\n\n\n\n

TEMPLATES = [\n    {\n        'BACKEND': 'django.template.backends.django.DjangoTemplates',\n        'DIRS': [os.path.join(BASE_DIR, 'templates'),],  # Templates pathway\n        'APP_DIRS': True,\n        'OPTIONS': {\n            'context_processors': [\n                'django.template.context_processors.debug',\n                'django.template.context_processors.request',\n                'django.contrib.auth.context_processors.auth',\n                'django.contrib.messages.context_processors.messages',\n            ],\n        },\n    },\n]<\/pre>\n\n\n\n
Step 3<\/h4>\n\n\n\n
There are predefined handler methods inside the django.urls<\/code> functions. 
To change this, we add the following line of code to our urls.py<\/strong> file;<\/p>\n\n\n\n
from django.urls import path\nfrom main.views import *\n\nhandler404 = 'main.views.handler404'  #add to urls.py file\n\napp_name = \"main\"\n\nurlpatterns = [\n    path('', home, name=\"home\"),\n<\/pre>\n\n\n\n
We are crushing the existing handler404<\/strong> function with the handler404 function that will work in this way.<\/p>\n\n\n\n
Step 4<\/h4>\n\n\n\n
We define our handler404 function in the views.py file in our main<\/strong> app.<\/p>\n\n\n\n
# 404 PAGE \ndef handler404(request, exception=None):\n    return render(request, 'auth\/404.html')\n<\/pre>\n\n\n\n
In the picture below, you can see the location of the views.py<\/strong> file in our main<\/strong> app and the file structure of our templates where our 404.html<\/strong> page is located.<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
After completing these steps, you can view the 404 page by entering a url that there is not in your application from the browser.<\/p>\n","protected":false},"excerpt":{"rendered":"
When we develop a web application with Django, the user may enter a url that does not exist. In this case, Django will present the user with a standard 404 page that is not stylish. Instead, we can create custom 404 page in Django. You can learn how to create custom 404 page by following […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[30,4],"tags":[],"yoast_head":"\nCreating Custom 404 Page in Python Django - blog website<\/title>\n<meta name=\"description\" content=\"When we develop a web application with Django, the user may enter a url that does not exist. In this case, Django will present the user with a standard 404 page that is not stylish. 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