That's sad. If you use compat, you can try revertbot.py, bot otherwise, there's nothing in the repos for that.
Hazard-SJ
From: Yury Katkov <katkov.juriy@gmail.com> To: Pywikipedia discussion list <pywikipedia-l@lists.wikimedia.org> Sent: Monday, September 2, 2013 6:04 PM Subject: [Pywikipedia-l] rollback the edits made by bot
I've done something nasty with my bot. I want to rollback his edits now, is it possible to do with another bot? ----- Yury Katkov, WikiVote