This may not be valuable at all, but here's a directory structure based on a combination of several software architecture patterns: ``` /application # root directory /application # source code, or main Python package /api # App programming interface-related modules __init__.py middlewares.py # Middlewares (e.g., authentication, logging) routes.py # Endpoint routes definitions serializers.py # Serialization/deserialization logic validators.py # Request validation logic views.py # or controllers.py, for handling API requests /dal # Data Access Layer; __init__.py dao.py # Data Access Objects. See CRUD operations database.py # Db configuration, connection, and ORM setup. repositories_impl.py # Concrete implementations of repositories. /domain # Domain modules, see DDD principles __init__.py domain_events.py # Domain-specific events. product.py # Product entity and related domain logic. repositories.py # Interfaces for repositories user.py # User entity and related domain logic. value_objects.py # Value objects used across domain. /infrastructure # Infrastructure & common modules __init__.py authentication.py # Authentication mechanisms. logging.py # Logging setup and utilities. /integration # Integration layer __init__.py api_clients.py # how-to com. w/ other APIs. or: email_client.py # API client for external services. payment_client.py # API client for external services. /services # Services/Application modules; core logic. __init__.py services.py # or: app_service.py # entry point for the presentation layer user_service.py domain_services.py /utils # Utility/helper modules __init__.py date_utils.py # Date-related utility functions. string_utils.py # String-related utility functions. __init__.py # marks dir package; enables import as module /docs # Documentation folder /_build # Generated documentation files (ex. HTML, PDF) /images # Images or diagrams used in documentation architecture_diagram.png api_reference.md # Detailed API reference, if applicable architecture.md # Details about the software architecture index.md # Main documentation entry point setup.md # Instructions for setting up the project /tests # Test modules, similar structure to app dir __init__.py test_api.py test_dal.py test_domain.py test_integration.py test_services.py ... .gitignore # Git ignore file README.md # app desc. & setup guide, -> docs directory Pipfile.txt # List of project dependencies config.py # Settings for db connections, API keys, etc. main.py # App entry point, server setup, orchestration setup.py # Setup script if packaging the application ```