There are several ways to get in touch with the developers
Mailing List¶
Main mailing list is scikit-learn-general. There is also a commit list, where updates to the main repo get notified: scikit-learn-commits
Bug tracker¶
If you think you’ve encoutered a bug, please report it to the issue tracker:
IRC¶
Some devs like to hang out on channel #scikit-learn on irc.freenode.net
If you do not have an irc client or are behind a firewall this web client works fine: http://webchat.freenode.net