Создал приложение аккаунтов

source/accoutns/admin.py

+from django.contrib import admin
+
+# Register your models here.

source/accoutns/apps.py

+from django.apps import AppConfig
+
+
+class AccoutnsConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'accoutns'

source/accoutns/models.py

+from django.db import models
+
+# Create your models here.

source/accoutns/tests.py

+from django.test import TestCase
+
+# Create your tests here.

source/accoutns/views.py

+from django.shortcuts import render
+
+# Create your views here.

source/webapp/views/courses_views.py

-from django.shortcuts import get_object_or_404, render 
-from django.urls.base import reverse, reverse_lazy
+from django.urls.base import reverse_lazy
 from django.views.generic import ListView, CreateView, DetailView, DeleteView
 from django.views.generic import UpdateView
 
@@ -23,7 +22,7 @@ class CoursesListView(ListView):
     model = Course
     context_object_name = 'courses'
     template_name = 'courses/courses_list.html'
-    paginate_by = 9
+    paginate_by = 6
 
 
 class CourseDetailView(DetailView):