Don't let standard library's configparser drive your configuration value access design. Let it do what it does best -- parse and write configuration files. And let configmanager do the rest.

• Every configuration item is an object with a type, a default value, a custom value and other metadata
• No sections required
• Any depth of sections allowed
• INI (ConfigParser), JSON, YAML formats
• click framework integration

https://jbasko.github.io/configmanager/

https://github.com/jbasko/configmanager

Install from Python Package index with pip install configmanager.

Declare your configuration, the sources, and off you go. Remember, every configuration item is an object, not just a plain configuration value. If you don't need the rich features of configuration items, use configmanager.PlainConfig instead.

import warnings
from configmanager import Config

config = Config({
    'uploads': {
        'threads': 1,
        'enabled': False,
        'db': {
            'user': 'root',
            'password': {
                '@default': 'root',
                '@envvar': 'MY_UPLOADER_DB_PASSWORD',
            },
        }
    }
}, load_sources=[
    '/etc/my-uploader/config.ini',
    '~/.config/my-uploader/config.json',
], auto_load=True)

if config.uploads.db.user.is_default:
    warnings.warn('Using default db user!')

if config.uploads.enabled.get():
    connect_to_database(
        user=config.uploads.db.user.get(),
        password=config.uploads.db.password.get(),
    )