python - 子类化Process类时未发出threading.Event等待功能

Question

因为下面的代码永远不会超过运行中的等待函数。我确定我在做一些非常愚蠢的事情，但是由于我不够聪明，无法弄清楚是什么，所以我在问。任何帮助表示赞赏。这是代码：

   import threading
   import multiprocessing
   from multiprocessing import Process

   class SomeClass(Process):
       def __init__(self):
           Process.__init__(self)
           self.event = threading.Event()
           self.event.clear()

       def continueExec(self):
           print multiprocessing.current_process().name
           print self
           print "Set:" + str(self.event.is_set())
           self.event.set()
           print "Set:" + str(self.event.is_set())

       def run(self):
           print "I'm running with it"
           print multiprocessing.current_process().name
           self.event.wait()
           print "I'm further than I was"
           print multiprocessing.current_process().name
           self.event.clear()



   def main():
       s_list = []
       for t in range(3):
           s = SomeClass()
           print "s:" + str(s)
           s_list.append(s)
           s.start()

       raw_input("Press enter to send signal")
       for t in range(3):
           print "s_list["+str(t)+"]:" + str(s_list[t])
           s_list[t].continueExec()
           raw_input("Press enter to send signal")

       for t in range(3):
           s_list[t].join()

       print "All Done"

   if __name__ == "__main__":
       main()