import subprocess as p
import time
import threading
from queue import Queue
def check_ip(ip):
      w=p.Popen('ping -n 2 '+ip,shell=True,stdout=p.PIPE,stderr=p.PIPE,encoding='gbk')
      result=w.stdout.read()
      # print(result)
      if 'TTL' in result:
        print(ip,'is Up')
def main():
  q=Queue()
  threads=[]
  threads_count=255
  ips = '39.156.69.'
  for i in range(1,255):
    q.put(ips+str(i))
    # print(q.get())
  for i in range(threads_count):
    t=threading.Thread(target=check_ip,args=(q.get(),))
    t.start()
    threads.append(t)
    time.sleep(0.2)
  for i in threads:
    i.join()
  print('all done')
if __name__ == '__main__':
  main()

import subprocess
import os
import time
 
def ping(host):
  rc=subprocess.call('ping -c2 %s &> /dev/null' % host,shell=True)
  if rc == 0:
    print('%s:up'% host)
  else:
    print('%s:down'% host)
if __name__ == '__main__':
  ips=['176.130.10.%s' % i for i in range(1,255)]
  for i in ips:
    pid=os.fork()
    if pid==0:
      ping(i)
      exit(0)