https://bugzilla.wikimedia.org/show_bug.cgi?id=57070
--- Comment #1 from sigilbaram@gmail.com --- After testing a little further it looks like the JSON errors are probably just some kind of issue on our servers, perhaps related to caching or somesuch. I've received JSON errors from other scripts beside welcome.py shortly after login, but after the bot works the first time for any script all the scripts (including my fixed welcome.py) work fine. Sorry for the unrelated issue.