Creating an app
Django is famous for its unique and fully managed app structure. For every functionality, an app can be created like a completely independent module. For example, if you are creating a Blog, Separate modules should be created for Comments, Posts, Login/Logout, etc. In Django, these modules are known as apps. There is a different app for each task. Benefits of using Django apps –
- Django apps are reusable i.e. a Django app can be used with multiple projects.
- We have loosely coupled i.e. almost independent components
- Multiple developers can work on different components
- Debugging and code organization are easy. Django has an excellent debugger tool.
- It has in-built features like admin pages etc, which reduces the effort of building the same from scratch
Django provides some pre-installed apps for users. To see pre-installed apps, navigate to projectName –> projectName –> settings.py. In your settings.py file, you will find INSTALLED_APPS. Apps listed in INSTALLED_APPS are provided by Django for the developer’s comfort.
Python3
INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', ] |
We can also create our own custom apps. To create a basic app in your Django project you need to go to the directory containing manage.py and from there enter the command :
python manage.py startapp projectApp
Now let’s create an app called gfg_site_app, so the command to create the app would be –
python manage.py startapp gfg_site_app
Now you can see your directory structure as under :
To consider the app in your project you need to specify your project name in the INSTALLED_APPS list as follows in settings.py:
Python3
INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'gfg_site_app.apps.GfgSiteAppConfig', ] |
For more information, refer to How to Create an App in Django ?
Python Web Development With Django
Python Django is a web framework that allows to quickly create efficient web pages. Django is also called batteries included framework because it provides built-in features such as Django Admin Interface, default database – SQLite3, etc. When you’re building a website, you always need a similar set of components: a way to handle user authentication (signing up, signing in, signing out), a management panel for your website, forms, a way to upload files, etc. Django gives you ready-made components to use.