对python判断ip是否可达的实例详解_Python

对python判断ip是否可达的实例详解

2021-05-25 00:24你这只猪儿虫 Python

今天小编就为大家分享一篇对python判断ip是否可达的实例详解，具有很好的参考价值，希望对大家有所帮助。一起跟随小编过来看看吧

python中使用subprocess来使用shell

									from __future__ import print_function

									import subprocess

									import threading

									def is_reachable(ip):

									  if subprocess.call(["ping", "-c", "2", ip])==0:#只发送两个ECHO_REQUEST包

									    print("{0} is alive.".format(ip))

									  else:

									    print("{0} is unalive".format(ip))

									if __name__ == "__main__":

									  ips = ["www.baidu.com","192.168.0.1"]

									  threads = []

									  for ip in ips:

									    thr = threading.Thread(target=is_reachable, args=(ip,))#参数必须为tuple形式

									    thr.start()#启动

									    threads.append(thr)

									  for thr in threads:

									    thr.join()

改良：使用Queue来优化（FIFO）

				?

									from __future__ import print_function

									import subprocess

									import threading

									from Queue import Queue

									from Queue import Empty

									def call_ping(ip):

									  if subprocess.call(["ping", "-c", "2", ip])==0:

									    print("{0} is reachable".format(ip))

									  else:

									    print("{0} is unreachable".format(ip))

									def is_reachable(q):

									  try:

									    while True:

									      ip = q.get_nowait()#当队列为空，不等待

									      call_ping(ip)

									  except Empty:

									    pass

									def main():

									  q = Queue()

									  args = ["www.baidu.com", "www.sohu.com", "192.168.0.1"]

									  for arg in args:

									    q.put(arg)

									  threads = []

									  for i in range(10):

									    thr = threading.Thread(target=is_reachable, args=(q,))

									    thr.start()

									    threads.append(thr)

									  for thr in threads:

									    thr.join()

									if __name__ == "__main__":

									  main()