fixed views.py and urls.py

janang_reading/bookshelf/urls.py

 from django.urls import path
-from .views import
+from .views import HomeView, AuthorView, AuthorDetailView, BooksView, BookDetailView
 
 # url for bookshelf
 
 urlpatterns = [
-    path('', views.bookshelfIndex, name='bookshelfIndex'),
-    path('', views.bookshelfIndex, name='bookshelfIndex'),
-    path('', views.bookshelfIndex, name='bookshelfIndex'),
+    path('', HomeView.as_view(), name='homepage'),
+    path('author', AuthorView.as_view(), name='author-list'),
+    path('author/<int:pk>', AuthorDetailView.as_view(), name='author-detail'),
+    path('boooks', BooksView.as_view(), name='books-list'),
+    path('books/<int:pk>', BookDetailView.as_view(), name='books-detail'),
 ]
\ No newline at end of file

janang_reading/bookshelf/views.py

@@ -8,18 +8,18 @@ from .models import Author, Books
 def HomeView(request):
     return render(request, 'bookshelf/home.html', {'nickname': 'Jan'})
 
-class BooksView(ListView):
-    model = Books
-    template_name = 'bookshelf/books.html'
-
-class BookDetailsView(DetailView):
-    model = Books
-    template_name = 'bookshelf/books_details.html'
-
 class AuthorView(ListView):
     model = Author
     template_name = 'bookshelf/author.html'
 
 class AuthorDetailView(DetailView):
     model = Author
-    template_name = 'bookshelf/author_details.html'
+    template_name = 'bookshelf/author_details.html'
\ No newline at end of file
+
+class BooksView(ListView):
+    model = Books
+    template_name = 'bookshelf/books.html'
+
+class BookDetailView(DetailView):
+    model = Books
+    template_name = 'bookshelf/books_details.html'
\ No newline at end of file