django.http Http404 Python Code Examples

Http404 (source code) is a Django convenience exception class that returns your application's standard error page and an HTTP 404 status code.

Note that while Http404 is typically imported from django.http, the source code for the exception lives under django.http.responses.

Example 1 from wagtail

wagtail (project website) is a Django-based content management system (CMS) with open source code provided under the BSD 3-Clause "New" or "Revised" License.

wagtail / wagtail / core / models.py

import json
import logging
from collections import defaultdict
from io import StringIO
from urllib.parse import urlparse

from django.conf import settings
from django.contrib.auth.models import Group, Permission
from django.contrib.contenttypes.models import ContentType
from django.core import checks
from django.core.cache import cache
from django.core.exceptions import ValidationError
from django.core.handlers.base import BaseHandler
from django.core.handlers.wsgi import WSGIRequest
from django.db import models, transaction
from django.db.models import Case, Q, Value, When
from django.db.models.functions import Concat, Substr
from django.http import Http404
from django.template.response import TemplateResponse
from django.urls import reverse
from django.utils import timezone
from django.utils.functional import cached_property
from django.utils.text import capfirst, slugify
from django.utils.translation import ugettext_lazy as _

## ... code is abbreviated here due to the long file length ...


    def route(self, request, path_components):
        if path_components:
            # request is for a child of this page
            child_slug = path_components[0]
            remaining_components = path_components[1:]

            try:
                subpage = self.get_children().get(slug=child_slug)
            except Page.DoesNotExist:
                raise Http404

            return subpage.specific.route(request, remaining_components)

        else:
            # request is for this very page
            if self.live:
                return RouteResult(self)
            else:
                raise Http404

Sponsored By

Sentry logo

Software errors are inevitable. Chaos is not. Try Sentry for free.

1. Introduction 2. Development Environments 3. Data 4. Web Development 5. Deployment 6. DevOps Changelog What Full Stack Means About the Author Future Directions Page Statuses Django ExtensionsDjango Example Codedjango.apps.config AppConfigdjango.conf settingsdjango.conf.urls.urldjango.contrib.admindjango.contrib.admin.filters SimpleListFilterdjango.contrib.admin.sites registerdjango.contrib.admin helpersdjango.contrib.admin.helpers ActionFormdjango.contrib.admin.helpers AdminFormdjango.contrib.admin.options IS_POPUP_VARdjango.contrib.admin.options IncorrectLookupParametersdjango.contrib.admin.options ModelAdmindjango.contrib.admin.options csrf_protect_mdjango.contrib.admin.sites NotRegistereddjango.contrib.admin.sites sitedjango.core cachedjango.core checksdjango.core exceptionsdjango.core maildjango.core managementdjango.core serializersdjango.core signalsdjango.core signingdjango.core validatorsdjango.utils translationdjango.utils.translation LANGUAGE_SESSION_KEYdjango.utils.translation activatedjango.utils.translation deactivate_alldjango.utils.translation get_languagedjango.utils.translation get_language_from_requestdjango.utils.translation gettextdjango.utils.translation gettext_lazydjango.utils.translation ngettextdjango.utils.translation overridedjango.utils.translation pgettextdjango.utils.translation pgettext_lazydjango.utils.translation ugettextdjango.utils.translation ugettext_lazydjango.utils.translation ungettextdjango.utils.translation ungettext_lazydjango.utils.version get_complete_versiondjango.views csrfdjango.views.debug get_default_exception_reporter_filterdjango.views.decorators.csrf csrf_exemptdjango.views.decorators.debug sensitive_post_parametersdjango.views.decorators.http require_GETdjango.views.decorators.http require_POSTdjango.views.generic CreateViewdjango.views.generic DeleteViewdjango.views.generic DetailViewdjango.views.generic FormViewdjango.views.generic ListViewdjango.views.generic RedirectViewdjango.views.generic TemplateViewdjango.views.generic UpdateViewdjango.views.generic Viewdjango.views.generic.base RedirectViewdjango.views.generic.base TemplateResponseMixindjango.views.generic.base TemplateViewdjango.views.generic.base Viewdjango.views.generic.detail SingleObjectMixindjango.views.generic.edit CreateViewdjango.views.generic.edit DeleteViewdjango.views.generic.edit DeletionMixindjango.views.generic.edit FormMixindjango.views.generic.edit FormViewdjango.views.generic.list ListViewdjango.views.generic.list MultipleObjectMixindjango.views.i18n JavaScriptCatalogdjango.views.static servedjango.views.static was_modified_sincedjango.contrib.auth.decorators login_requireddjango.contrib.auth get_user_modeldjango.contrib.auth.hashers make_passworddjango.core.exceptions ImproperlyConfigureddjango.core.mail.messages EmailMessagedjango.core.mail.send_maildjango.core.management.base BaseCommanddjango.db.models AutoFielddjango.db.models BooleanFielddjango.db.models CharFielddjango.db.models DateFielddjango.db.models DateTimeFielddjango.db.models FileFielddjango.db.models ForeignKeydjango.db.models GenericIPAddressFielddjango.db.models ImageFielddjango.db.models IntegerFielddjango.db.models Modeldjango.db.models PositiveIntegerFielddjango.db.models PositiveSmallIntegerFielddjango.db.models.signaldjango.db.models SlugFielddjango.db.models SmallIntegerFielddjango.db.models TextFielddjango.db OperationalErrordjango.dispatch Signaldjango.formsdjango.forms BooleanFielddjango.forms CharFielddjango.forms ChoiceFielddjango.forms DateFielddjango.forms DateTimeFielddjango.forms EmailFielddjango.forms IntegerFielddjango.forms TypedChoiceFielddjango.http Http404django.http HttpResponsedjango.http HttpResponseBadRequestdjango.http HttpResponseForbiddendjango.http HttpResponseNotModifieddjango.http HttpResponsePermanentRedirectdjango.http HttpResponseRedirectdjango.template.response SimpleTemplateResponsedjango.template.response TemplateResponsedjango.urls.pathdjango.urls reverse_lazydjango.urls.exceptions NoReverseMatchdjango.urls.exceptions Resolver404django.utils.html format_htmldjango.utils.timezone ...or view the full table of contents.

Full Stack Python

Full Stack Python is an open book that explains concepts in plain language and provides helpful resources for those topics.
Updates via Twitter & Facebook.

Matt Makai 2012-2020