handle custom error templates

lettings/models.py

@@ -20,4 +20,3 @@ class Letting(models.Model):
 
     def __str__(self):
         return self.title
-

lettings/views.py

@@ -7,10 +7,11 @@ def index(request):
     context = {'lettings_list': lettings_list}
     return render(request, 'lettings/index.html', context)
 
+
 def letting(request, letting_id):
     letting = Letting.objects.get(id=letting_id)
     context = {
         'title': letting.title,
         'address': letting.address,
     }
-    return render(request, 'lettings/letting.html', context)
+    return render(request, 'lettings/letting.html', context)