I used os.waitpid,but I still can't Zombie process?

[Donn Cave]

Quoth =?gb2312?B?1cXJ2bPb?= <zhangsc at neusoft.com>:

| I still want to kill Zombie process which cause by child process,so I use os.waitpid,But I found Zombie is still exist,why? my program is follows:
| ...
| while 1:
|   ...
|   ret=os.fork() 
|   if ret==0: 
|      HOST=udpaddr
|      PORT=21567
|      ADDR=(HOST,PORT)
|      udpSerSock=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
|      udpSerSock.sendto(data,ADDR)
|      udpSerSock.close()
|      break
|   os.waitpid(ret,os.WNOHANG);
|
| Where is my program's error? How to correct my program? Any idea will be appreciated.
|       Edward

WNOHANG means "return right away" - whether before or after receiving the
process' status.  Replace it with 0, if you want to wait for the process
and end its zombie unlife.

	Donn Cave, donn at drizzle.com