views.py 文件源码

def page_not_found(request, template_name='404.html'):
    context = {
        'request_path': request.path,
        'error': {
            'title': _('Page not found'),
            'message': _("We tried but couldn't find this page, sorry."),
        },
    }

    try:
        template = loader.get_template(template_name)
        body = template.render(context, request)
        content_type = None

    except TemplateDoesNotExist:
        template = Engine().from_string(
            '<h1>Not Found</h1>'
            '<p>The requested URL {{ request_path }} was not found on this server.</p>')
        body = template.render(Context(context))
        content_type = 'text/html'

    return HttpResponseNotFound(body, content_type=content_type)