demonstrates a subtle eventlet bug when killing greenthreads after the runloop dies but hasn't been restarted by a switch().

eventlet_dead_runloop_bug.py

import eventlet

ev = eventlet.event.Event()


def dummyproc():
    eventlet.hubs.get_hub().switch()

g = eventlet.spawn(dummyproc)


print 'Feel free to terminate with ctrl-C'
try:
    eventlet.hubs.get_hub().switch()
except KeyboardInterrupt:
    print ('Runloop died, terminating greenthread.'
        ' This schedules a timer to switch back to this greenthread after'
        ' exception is thrown in greenthread.')
g.kill()

print 'Should now wait forever on event.'
ev.wait()
print 'Ooops! We\'ve been rescheduled by timer set by kill above.'