Register Apps in INSTALLED_APPS
Make Django aware of your new app.
Register Apps in INSTALLED_APPS is a free Django Academy lesson on CoddyKit — lesson 2 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Django Academy learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Django Must Be Told
Creating an app folder is not enough. Django only activates an app once you add it to the INSTALLED_APPS list in settings.
Find the List
Open settings.py and look near the top for INSTALLED_APPS. It is a plain Python list of strings, one per active app.
INSTALLED_APPS = [
"django.contrib.admin",
]Built-in Apps Are Already There
You will see entries like django.contrib.auth and admin. These ship with Django and power features you get for free.
Add Your App
To switch on your app, add its name as a string to the list. The simple form is just the app's folder name.
INSTALLED_APPS = [
"django.contrib.admin",
"blog",
]The Cleaner AppConfig Path
The recommended form points to the config class in apps.py. Using the full AppConfig path is the modern Django convention.
INSTALLED_APPS = [
"blog.apps.BlogConfig",
]Why Registration Matters
Once registered, Django can find your models, templates, and admin entries. Skip this step and your features simply will not load.
Unlocks Migrations
Migrations only run for apps in the list. Without registration, makemigrations ignores your models and no tables get created.
Order Can Matter
Django reads INSTALLED_APPS top to bottom. Order rarely matters, but it can affect template and static file lookups when names clash.
Mind the Commas
It is a Python list, so every entry needs a trailing comma. A missing comma is a classic, confusing beginner error here.
Verify It Loaded
After editing, run the dev server. If Django starts without an error about your app, the registration worked correctly.
python manage.py runserverThird-Party Apps Too
Installed packages like Django REST Framework also go in this list. Registering them is what turns a pip install into working features.
Quick Check
What happens to your app's models if you forget INSTALLED_APPS?
Recap: App Switched On
You added your app to INSTALLED_APPS, ideally via its AppConfig path. That one line lets Django load your models, admin, and migrations. ✅
Frequently asked questions
Is the “Register Apps in INSTALLED_APPS” lesson free?
Yes — the full text of “Register Apps in INSTALLED_APPS” is free to read here on the web, and the Django Academy course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Django Academy course, upgrade to CoddyKit PRO.
What will I learn in “Register Apps in INSTALLED_APPS”?
Make Django aware of your new app. You practise Django Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Django Academy?
No prior experience is required. Django Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 2 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “Register Apps in INSTALLED_APPS” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Django Academy lesson?
Yes. Every Django Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- startapp and the App Folder Layout
- Register Apps in INSTALLED_APPS
- Touring settings.py
- manage.py: Your Command Center