Add setuptools entry points to extend the load order?

[akaIDIOT]

Suppose someone would write something that reads usernames and passwords from a secure source, like a keyring. Confidence could import loaders for extended functionality from a defined entry point that fit some point in the load order. Automatically applying that can be either magically useful, but maybe also surprising or a security concern (though why was it installed otherwise?).

[options.entry_points]
confidence.loaders.USER =
    keyring = confidence_keyring:load_keyring

Above could be scanned when confidence is imported, automatically adding confidence_keyring.load_keyring to the loaders for the USER locality, or registering it somewhere that's easier than having a user manually insert it somewhere using loaders()? If it's not loaded by default, the entry point likely won't make a whole load of sense.