saltstack/salt — pull request #8272 by jcsp (2013-11-05 14:49:15+00:00)
Title: Make utils.event work with gevent.monkey

When using gevent monkey patching, one must import
a different module from pyzmq, or LocalEvent will
block calls to get_event forever.

I'm kind of in two minds about whether having this here is at all hygienic, but it does make it 'just work' where it otherwise gets stuck silently.