app_templates_app_detail.html

<h1>{{ question.question_text }}</h1>
<ul>
{% for choice in question.choice_set.all %}
    <li>{{ choice.choice_text }}</li>
{% endfor %}
</ul>

app_templates_app_index.html

{% if latest_question_list %}
    <ul>
    {% for question in latest_question_list %}
        <li><a href="{% url 'detail' question.id %}">{{ question.question_text }}</a></li>
    {% endfor %}
    </ul>
{% else %}
    <p>No polls are available.</p>
{% endif %}

app_urls.py

from django.urls import path

from . import views

urlpatterns = [
    # ex: /app/
    path('', views.index, name='index'),
    # ex: /app/5/
    path('<int:question_id>/', views.detail, name='detail'),
    # ex: /app/5/results/
    path('<int:question_id>/results/', views.results, name='results'),
    # ex: /app/5/vote/
    path('<int:question_id>/vote/', views.vote, name='vote'),
]

app_views.py

from django.shortcuts import render
from django.http import Http404

from .models import Question

def index(request):
    latest_question_list = Question.objects.order_by('-pub_date')[:5]
    context = {'latest_question_list': latest_question_list}
    return render(request, 'app/index.html', context)

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, 'app/detail.html', {'question': question})

def results(request, question_id):
    response = "You're looking at the results of question %s."
    return HttpResponse(response % question_id)

def vote(request, question_id):
    return HttpResponse("You're voting on question %s." % question_id)