Python Django 4.2.5 Tutorial: Throwing 404 Error (Using Http404)

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})

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links:
throws 404 error