Hi,

In the shell, prior to 2.4, addUser was used to both add new users as well as to change user passwords.

In 2.4, if you have a user with roles granted, you need to use the changeUserPassword helper to change the password otherwise you get a duplicate key violation exception.

WIth pymongo, add_user is still being used to maintain passwords, but it would be nice to have consistency across tools.

Thanks.