waiter2.py

import eventlet
from eventlet import event

evt = event.Event()

def waiter():
    print "waiter: before wait()"
    evt.wait()
    print "waiter: after wait()"
    
w = eventlet.spawn(waiter)

print "main: before send()"
eventlet.sleep()
evt.send()
print "main: after send()"
eventlet.sleep()
print "main: at end"