django-pyproject

Description

This package allows you to store some/all of your settings in your pyproject.toml file (or any toml file in general).

Installation

You can add django-pyproject to your poetry project with:

poetry add django-pyproject

Or through pip:

pip install django-pyproject

• PyPI page
• GitHub page

Usage

You can use django-pyproject to import any settings specified in your pyproject file under [tool.django].

Settings file

To import django settings from your pyproject file, use this in your settings file:

from djpp import pyproject
pyproject.load()

This will work only if you have a standard django project structure.
If your pyproject file is located somewhere else or has a different name, you can specify it:

pyproject.load('path-to-your-pyproject-file')

PyProject file

All django settings in pyproject.toml file should be stored under [tool.django] key, like this:

[tool.django]
ALLOWED_HOSTS = []

You don't have to use uppercase letters for the variable names, django-pyproject will automatically convert them all. This does not work for dict key names:

[tool.django]
allowed_hosts = []

[tool.django.databases.default]
engine = 'django.db.backends.sqlite3'
HOST = '127.0.0.1'
PORT = '5432'

Will convert into:

ALLOWED_HOSTS = []
DATABASES = {
    'default': {
        'engine': 'django.db.backends.sqlite3',
        'HOST': '127.0.0.1',
        'PORT': '5432',
    }
}

But what to do about relative filepaths, that you had to construct with os.path?
You can specify filepaths separating them with '/' in inline dict under key 'path'.
Using '..' will make django-pyproject go up a level. Starting with '.' will make a path relative:

base_dir = { path = "." }
project_dir = { path = "./your_project_folder" }
repo_dir = { path = "./.." }

This will have the same effect as the following code in settings.py:

import os
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
REPO_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

This is assuming you have a standard django project structure.

If a value needs to be taken from an environment, use inline dict with key 'path' and optional key 'default':

email_host_password = { env = 'SECRET_PASSWORD' }
secret_key = { env = 'SECRET_KEY', default = 'hello' }

Development, Docker & Production

If some of you settings have an alternative value for when DEBUG is off, specify them in [tool.django.production]. They will override regular settings if DEBUG is off.
Similarly, settings under [tool.django.development] will work only if DEBUG i on.

It is important to note, that DEBUG is True by default.

By default, django-pyproject applies production settings and sets DEBUG to False, if current evironment has a DJANGO_ENV variable, set to 'production'.
You can override it with your own key and value like this:

pyproject.load(production_env=('YOUR_KEY', 'your_value'))

If some of you settings have an alternative value for when the app is in container, specify them in [tool.django.docker]. They will override regular settings and development settings, and will be overriden by production settings.

By default, django-pyproject applies docker settings, if current evironment has a DJANGO_ENV variable.
You can override it with your own key like this:

pyproject.load(docker_env='YOUR_KEY')

Concatenating & Poetry keys

You can concat strings using inline dict with 'con' and 'cat' keys.
Additionally, you can access values in keys from [tool.poetry] using 'poetry' key.
This example explains both features:

[tool.poetry]
name = "my-app"

[tool.django]
project_name = { con = { poetry = "name" }, cat = ", v.1" }

will result in

PROJECT_NAME = 'my-app, v.1'

Keep in mind, that due to toml python library limitations, enclosing too much inline dicts in each other may result in error.
To overcome this, use con-poetry, con-poetry-cat and poetry-cat hybrids:

[tool.poetry]
name = "my-app"

[tool.django]
var1 = { con = "Hi! ", poetry = "name" }
var2 = { poetry = "name", cat = ", v.1" }
var3 = { con = "Hi! ", poetry = "name", cat = ", v.1" }

will result in

VAR1 = 'Hi! my-app'
VAR2 = 'my-app, v.1'
VAR3 = 'Hi! my-app, v.1'

Apps

You can group settings that belong to an external app together for easier access.
To do that, you can list them under [tool.django.apps.your_app].
You can also modify variables like INSTALLED_APPS from here with 'insert' key.

Here's an example for corsheaders:

[tool.django.apps.cors]
CORS_ORIGIN_WHITELIST = ['http://localhost:3000',]
CORS_ALLOW_CREDENTIALS = true
CSRF_COOKIE_NAME = "XCSRF-Token"
INSTALLED_APPS = { insert = 'corsheaders' }
MIDDLEWARE = { insert = 'corsheaders.middleware.CorsMiddleware', pos = 3 }

This is similar to the following python code:

CORS_ORIGIN_WHITELIST = ('http://localhost:3000',)
CORS_ALLOW_CREDENTIALS = True
CSRF_COOKIE_NAME = "XCSRF-Token"
INSTALLED_APPS.append('corsheaders')
MIDDLEWARE.insert(3, 'corsheaders.middleware.CorsMiddleware')

Full import

You also can simply import pyproject file (or any toml file) contents as a dict with load_all().