Example
In PaaS sites such as Heroku, it is usual to receive the database information as a single URL environment variable, instead of several parameters (host, port, user, password...).
There is a module, dj_database_url which automatically extracts the DATABASE_URL environment variable to a Python dictionary appropriate for injecting the database settings in Django.
Usage:
import dj_database_url
if os.environ.get('DATABASE_URL'):
DATABASES['default'] =
dj_database_url.config(default=os.environ['DATABASE_URL'])
