#261 Django

The most bare-bones single file Django app

Notes

How basic can you make a Django app?

Install Dependencies

Using Python 3.7.3 to create and setup a virtual environment with the requirepements as specified in requirements.txt:

$ python -V
Python 3.7.3
$ python -m venv venv
$ source venv/bin/activate
$ pip install --upgrade pip
$ pip install -r requirements.txt

Hello Echo Server

Everything is in hello.py:

minimal Django settings
defines an index responder
defines urlpatterns
defines wsgi application
if invoked as main script, defers to Django command line handler

Limitations and what is not included:

there is no database - this will cause problems if trying to use standard Django tests

Running with Django Development Server

Use runserver option:

$ python hello.py runserver
Watching for file changes with StatReloader
Performing system checks...

System check identified no issues (0 silenced).
May 16, 2023 - 22:48:26
Django version 3.2.18, using settings None
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
[16/May/2023 22:48:31] "GET / HTTP/1.1" 200 12

Calling with curl:

$ curl http://localhost:8000
Hello World

Running with gunicorn

Alternatively, startup with gunicorn:

$ gunicorn hello --log-file=-
[2023-05-16 22:51:46 +0800] [35027] [INFO] Starting gunicorn 20.1.0
[2023-05-16 22:51:46 +0800] [35027] [INFO] Listening at: http://127.0.0.1:8000 (35027)
[2023-05-16 22:51:46 +0800] [35027] [INFO] Using worker: sync
[2023-05-16 22:51:46 +0800] [35030] [INFO] Booting worker with pid: 35030