'Solution'

taxi/views.py

@@ -6,21 +6,21 @@
 from .models import Driver, Car, Manufacturer
 
 
-
+@login_required()
 def index(request):
     """View function for the home page of the site."""
 
     num_drivers = Driver.objects.count()
     num_cars = Car.objects.count()
     num_manufacturers = Manufacturer.objects.count()
-    num_visit = request.session.get('num_visit', 0)
-    request.session['num_visit'] = num_visit + 1
+    num_visit = request.session.get("num_visit", 0)
+    request.session["num_visit"] = num_visit + 1
 
     context = {
         "num_drivers": num_drivers,
         "num_cars": num_cars,
         "num_manufacturers": num_manufacturers,
-        "num_visit": request.session['num_visit'],
+        "num_visit": request.session["num_visit"],
     }
 
     return render(request, "taxi/index.html", context=context)