Thanks to André Costa, we now have improved handling of bot passwords in Pywikibot. 

- In the new system, user-config.py contains your actual username, and the botpassword is stored in a password file. This provides a cleaner separation between the username on the one hand, and the logging in-logic on the other.

- Documentation on the new system is available here: https://www.mediawiki.org/wiki/Manual:Pywikibot/BotPasswords

- Current usage (with a username 'valhallasw@botname' in user-config.py) should still work, but will show a warning message, suggesting to move to the new system.

Please let us know if you encounter any issues!

Merlijn