Denigma structural layout is optimized to be most logical. It has been curated over years (Django/How-do-you-organize-the-code-in-your-Django-project">organize-code-in-your-django-project):

.                # Project (everything here gets under version control)
├── ./gitignore  # Besides what is defined in the ignore list
├── __init__.py  # Project initialization
├── requirements # Requirements files (split up for def/prod), and chef/puppet/salt recopies
|   ├── pre.txt     # Pre-stage requirements
|   ├── base.txt    # Basic requirements
|   └── project.txt # Project-specific requirements
├── docs            # Documentations to built with Sphinx
|   ├── main.rst    # Main development
│   ├── TODO.rst    # DEP (Denigma Enhancement Proposals)
│   └── upgrade.rst # Upgrading issues
├── scripts         # Bootstrap dev/CI sys, manage.py, etc.
├── utils           # Utility modules
├── manage.py       # Manager
└── denigma         # Site
    ├── __init__.py # Site initialization
    ├── settings.py # Main Configuration
    ├── static      # Static assets
    │   ├── css     # Cascade Style Sheets
    │   ├── img     # Images
    │   └── js      # Javascripts
    ├── media       # User uploaded files
    ├── templates   # HTML templates
    ├── documents   # Data entries rendered as documents
    ├── urls.py     # Main URLconf
    ├── wsgi.py     # Deployment
    └── apps        # Applications (get injected into sys.path, makes inner apps have cleaner import)
        ├── __init__.py # Application initialization
        └── app             # Application like the data app
            ├── __init__.py # Application initialization
            ├── models.py   # Database models
            ├── views.py    # Function and classes
            ├── admin.py    # Administration (optional)
            ├── forms.py    # (optional)
            ├── tables.py   #
            ├── filters.py  # (optional)
            ├── handlers.py # Signal handlers (optional)
            ├── tests.py    # Testing functions and suits
            ├── static      # App-specific static assets
            │   └── app     # Allows project-level templates dir to overwrite/extend these easier
            │       ├── css # Cascade Style Sheets
            │       ├── img # Images
            │       └── js  # Javascripts
            └── templates   # App-specific templates...
                └── app     # ...go into here