ping

import subprocess

hostsfile=open("hosts", "r")

lines=hostsfile.readlines()

for line in lines:
    response=subprocess.Popen(["ping", "-c", "1", line.strip()],
    stdout=subprocess.PIPE,
    stderr=subprocess.STDOUT)
    stdout, stderr = response.communicate()
    print(stdout)
    print(stderr)

#    if (response.returncode == 0):
#        status = line.rstrip() + " is Reachable"
#    else:
#        status = line.rstrip() + " is Not reachable"
 #   print(status)

hosts file in the same DIR