easy_install django-orphaned

pip install django-orphaned

INSTALLED_APPS = (
    'django_orphaned',
    ...
)

ORPHANED_APPS_MEDIABASE_DIRS = {
    'app1': {
        # MEDIA_ROOT => default location(s) of your uploaded items e.g. /var/www/mediabase
        # It can be a single value or a list of iterable
        'root': ( 
            os.path.join(MEDIA_ROOT, 'files'),
            os.path.join(MEDIA_ROOT, 'images'),
        ),
        # optional iterable of subfolders to preserve, e.g. sorl.thumbnail cache
        'skip': (               
            path.join(MEDIA_ROOT, 'cache'),
            path.join(MEDIA_ROOT, 'foobar'),
        ),
        # optional iterable of files to preserve
        'exclude': (
            '.gitignore',
        ) 
    }
    'app2': {
        ...
        # same as above
        ..
    }
}
# location where the log file will be stored
# if not set or empty the log file will not be created
ORPHANED_LOGS_DIR = MEDIA_ROOT

python manage.py deleteorphaned --info

python manage.py deleteorphaned