There are several ways to get in touch with the developers Mailing List ============ Main mailing list is `scikit-learn-general <https://lists.sourceforge.net/lists/listinfo/scikit-learn-general>`_. There is also a commit list, where updates to the main repo get notified: `scikit-learn-commits <https://lists.sourceforge.net/lists/listinfo/scikit-learn-commits>`_ Bug tracker =========== If you think you've encoutered a bug, please report it to the issue tracker: http://sourceforge.net/apps/trac/scikit-learn/report/1 IRC === Some devs like to hang out on channel #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