没有响应后，python subprocess.popen ping失败

Question

我使用子进程

下面有ping函数

def ping_sub1(a):
            with open(os.devnull, "wb") as limbo:
        for ip in a:
            result = subprocess.Popen(["ping", "-c", "1", "-w", "1", ip], stdout=limbo, stderr=limbo).wait()
            if result:
                a.remove(ip)
    return a

我和＆＃39; a＆＃39;列表如下123.123.123.123没有响应。看起来像 它已从列表中删除但随后程序停止...只有在所有地址都响应时才能正常工作。

>>> a=['10.29.1.1', '123.123.123.123', '123.123.123.123', '10.29.21.208']
>>> pingtest4.ping_sub1(a)
['10.29.1.1', '123.123.123.123', '10.29.21.208']
>>> pingtest4.ping_sub1(a)
['10.29.1.1', '10.29.21.208']
>>> pingtest4.ping_sub1(a)
['10.29.1.1', '10.29.21.208']
>>> 

请告知