How to create app under subfolde

1. Create the folder that you want the app created, e.g. price
2. Create the app

django-admin.py startapp app_name path-to-app/app-name

3. Change AppConfig name in apps.py file.

class PriceAppConfig(AppConfig):
    name = 'path-to-app.price'

4. put the app in INSTALLED_APP in settings.py file