diff --git a/docs/topics/class-based-views/generic-editing.txt b/docs/topics/class-based-views/generic-editing.txt
index 73d1e2eb8d..24b617c418 100644
--- a/docs/topics/class-based-views/generic-editing.txt
+++ b/docs/topics/class-based-views/generic-editing.txt
@@ -303,7 +303,7 @@ preference, use :func:`django.http.HttpRequest.get_preferred_type`::
 
         def form_invalid(self, form):
             response = super().form_invalid(form)
-            accepted_type = request.get_preferred_type(self.accepted_media_types)
+            accepted_type = self.request.get_preferred_type(self.accepted_media_types)
             if accepted_type == "text/html":
                 return response
             elif accepted_type == "application/json":
@@ -314,7 +314,7 @@ preference, use :func:`django.http.HttpRequest.get_preferred_type`::
             # it might do some processing (in the case of CreateView, it will
             # call form.save() for example).
             response = super().form_valid(form)
-            accepted_type = request.get_preferred_type(self.accepted_media_types)
+            accepted_type = self.request.get_preferred_type(self.accepted_media_types)
             if accepted_type == "text/html":
                 return response
             elif accepted_type == "application/json":
diff --git a/docs/topics/files.txt b/docs/topics/files.txt
index 0c4d1e5c6c..bee04e1d75 100644
--- a/docs/topics/files.txt
+++ b/docs/topics/files.txt
@@ -70,7 +70,7 @@ location (:setting:`MEDIA_ROOT` if you are using the default
     >>> from django.conf import settings
     >>> initial_path = car.photo.path
     >>> car.photo.name = "cars/chevy_ii.jpg"
-    >>> new_path = settings.MEDIA_ROOT + car.photo.name
+    >>> new_path = os.path.join(settings.MEDIA_ROOT, car.photo.name)
     >>> # Move the file on the filesystem
     >>> os.rename(initial_path, new_path)
     >>> car.save()
diff --git a/docs/topics/pagination.txt b/docs/topics/pagination.txt
index 50f57151a6..b80e0dde90 100644
--- a/docs/topics/pagination.txt
+++ b/docs/topics/pagination.txt
@@ -31,7 +31,7 @@ accessing the items for each page:
     >>> p.num_pages
     2
     >>> type(p.page_range)
-    <class 'range_iterator'>
+    <class 'range'>
     >>> p.page_range
     range(1, 3)