kazoo (zookeeper) callback with gevent

gistfile1.py

from functools import partial
import gevent

def kazoo_callback(zk, func, event):
    """
    usage example
    zk.get_children("/redis/providers", partial(kazoo_callback, zk, provider_changed))
    """
    def watcher(e):
        print "### watcher called", event
        func(zk.get_children(event.path, partial(kazoo_callback, zk, func)))
    gevent.spawn(watcher, event)