import os
return1=os.system('ping -n 2 -w 1 172.21.1.183')
print return1

#-*- coding: utf-8 -*-
import subprocess
import re
p = subprocess.Popen(["ping.exe ", '172.21.183.183'],stdin = subprocess.PIPE,stdout = subprocess.PIPE,stderr = subprocess.PIPE,shell = True)
out = p.stdout.read()
print out
regex = re.compile("Minimum = (\d+)ms, Maximum = (\d+)ms, Average = (\d+)ms", re.IGNORECASE)
print regex.findall(out)

from subprocess import call
result = call("ping 172.21.4.20 -n 1",shell=True)
print result

import os,sys,re
import subprocess
p = subprocess.Popen(["ping -c 1 -w 1 172.21.183.183"],stdout=subprocess.PIPE,stderr=subprocess.PIPE,shell=True)
out=p.stdout.read()
err=p.stderr.read()
regex=re.compile('100% packet loss')
print out