python调用命令并获取实时输出
from subprocess import *import datetime,time
import threading
import os,sys
def runcmd():
cmd = ["ping","-t","www.baidu.com"]
r=Popen(cmd,stdin=PIPE,stdout=PIPE,stderr=PIPE)
for i in iter(r.stdout.readline,b""):
print(i.decode("gbk").strip())
child = threading.Thread(target=runcmd)
child.daemon=True
child.start()
num = 0
timeout = 30
while True:
time.sleep(1)
num += 1
print("Now num ",num)
if num == timeout:
os._exit(0)
Now num 28来自 112.80.248.75 的回复: 字节=32 时间=20ms TTL=55
Now num 29
来自 112.80.248.75 的回复: 字节=32 时间=10ms TTL=55
Now num 30
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