django

1. DJANGO PROJECT:
HELLO WORLD
Step-by-Step Guide to Create a Simple Django App

2. 1. ACTIVATE THE VIRTUAL
ENVIRONMENT
• Open terminal and run:
• On Windows:
venv_nameScriptsactivate
• On macOS/Linux:
source venv_name/bin/activate

3. 2. CREATE DJANGO PROJECT
• Run the following command:
• django-admin startproject hello_project
• cd hello_project
• This creates the project folder.

4. 3. PROJECT STRUCTURE
• hello_project/
├ manage.py
└ hello_project/
├ __init__.py
├ asgi.py
├ settings.py
├ urls.py
└ wsgi.py

5. 4. CREATE DJANGO
APP
RUN THE COMMAND:
python manage.py startapp
hello_app
• This creates the `hello_app` folder.
• hello_project/
• ├ hello_app/
• │ ├ migrations/ # Database migrations
• │ ├ __init__.py
• │ ├ admin.py # Admin interface settings
• │ ├ apps.py # App configuration
• │ ├ models.py # Database models
• │ ├ tests.py # Test cases
• │ └ views.py # App logic (where we'll add Hello
World)

6. 3. PROJECT STRUCTURE
• hello_project/
├ manage.py
└ hello_project/
├ __init__.py
├ asgi.py
├ settings.py
├ urls.py
└ wsgi.py
5. UPDATE
SETTINGS.PY
In Hello_project/Settings.Py,
Add 'Hello_app' In
INSTALLED_APPS:
• INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'hello_app', # Add this line
]

7. 6. CREATE
HELLO
WORLD VIEW
• In `hello_app/views.py, add:
• from django.http import
HttpResponse
def hello_world(request):
return HttpResponse("Hello,
World!")

8. 7. CONFIGURE URLS
Explanation
• admin: Imports the Django admin
site functionality.
• path: Used to define URL patterns.
• include: Allows including app-level
urls.py in the project’s urls.py
In `hello_project/urls.py` include the
app URLs:
from django.contrib import admin
from django.urls import path, include
urlpatterns = [
path('admin/', admin.site.urls),
path(‘ ', include('hello_app.urls')), #
Add this line
]

9. 7. CONFIGURE URLS
from django.contrib import admin
from django.urls import path, include
urlpatterns = [
path('admin/', admin.site.urls),
path(‘ ', include('hello_app.urls')), # Add this line
]
Explanation:
• path('admin/', admin.site.urls)
• Routes /admin/ to the Django admin panel.
• path(‘ ', include('hello_app.urls'))
• Routes the root URL (/) to the hello_app app.
• The include() function links to
hello_app/urls.py.
• Example: If you visit http://127.0.0.1:8000/,
Django will look for the URL patterns inside
hello_app/urls.py.

10. 8. RUN THE
SERVER
Apply migrations and
start server:
python manage.py
migrate
python manage.py
runserver
Visit:
http://127.0.0.1:8000/
to see 'Hello,World!'