new changes

app/polls/urls.py

@@ -4,11 +4,11 @@ from . import views
 
 urlpatterns = [
     # ex: /polls/
-    path("", views.index, name="index"),
+    path('', views.index, name='index'),
     # ex: /polls/5/
-    path("<int:question_id>/", views.detail, name="detail"),
+    path('<int:question_id>/', views.detail, name='detail'),
     # ex: /polls/5/results/
-    path("<int:question_id>/results/", views.results, name="results"),
+    path('<int:question_id>/results/', views.results, name='results'),
     # ex: /polls/5/vote/
-    path("<int:question_id>/vote/", views.vote, name="vote"),
+    path('<int:question_id>/vote/', views.vote, name='vote'),
 ]

app/polls/views.py

@@ -1,21 +1,20 @@
 from django.http import HttpResponse
+
 from .models import Question
 
 
 def index(request):
-    latest_question_list = Question.objects.order_by("-pub_date")[:5]
-    output = ", ".join([q.question_text for q in latest_question_list])
+    latest_question_list = Question.objects.order_by('-pub_date')[:5]
+    output = ', '.join([q.question_text for q in latest_question_list])
     return HttpResponse(output)
 
-
+# Leave the rest of the views (detail, results, vote) unchanged
 def detail(request, question_id):
     return HttpResponse("You're looking at question %s." % question_id)
 
-
 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)