Ping a site in Python?

Question

How do I ping a website or IP address with Python?

Answer 1

read a file name, the file contain the one url per line, like this:

http://www.poolsaboveground.com/apache/hadoop/core/
http://mirrors.sonic.net/apache/hadoop/core/

use command:

python url.py urls.txt

get the result:

Round Trip Time: 253 ms - mirrors.sonic.net
Round Trip Time: 245 ms - www.globalish.com
Round Trip Time: 327 ms - www.poolsaboveground.com

source code(url.py):

import re
import sys
import urlparse
from subprocess import Popen, PIPE
from threading import Thread


class Pinger(object):
    def __init__(self, hosts):
        for host in hosts:
            hostname = urlparse.urlparse(host).hostname
            if hostname:
                pa = PingAgent(hostname)
                pa.start()
            else:
                continue

class PingAgent(Thread):
    def __init__(self, host):
        Thread.__init__(self)        
        self.host = host

    def run(self):
        p = Popen('ping -n 1 ' + self.host, stdout=PIPE)
        m = re.search('Average = (.*)ms', p.stdout.read())
        if m: print 'Round Trip Time: %s ms -' % m.group(1), self.host
        else: print 'Error: Invalid Response -', self.host


if __name__ == '__main__':
    with open(sys.argv[1]) as f:
        content = f.readlines() 
    Pinger(content)