python定时检查某个进程是否已经关闭的方法

本文实例讲述了python定时检查某个进程是否已经关闭的方法。分享给大家供大家参考。具体如下：

    import threading
    import time
    import os
    import subprocess
    def get_process_count(imagename):
      p = os.popen('tasklist /FI "IMAGENAME eq %s"' % imagename)
      return p.read().count(imagename)
    def timer_start():
      t = threading.Timer(120,watch_func,("is running..."))
      t.start()
    def watch_func(msg):
      print "I'm watch_func,",msg
      if get_process_count('main.exe') == 0 :
        print subprocess.Popen([r'D:\shuaji\bin\main.exe'])
      timer_start()
    if __name__ == "__main__":
      timer_start()
      while True:
        time.sleep(1)

希望本文所述对大家的Python程序设计有所帮助。