web spyder

from multiprocessing import Pool
import urllib, time, os
def esplora(url):
    print("Sto leggendo {0} (proc:{1})".format(url, os.getpid()))
    urllib.urlretrieve("http://{0}".format(url), url)
if __name__ == '__main__':
    p = Pool(3)
    p.map(esplora, ["www.ubuntu.com", "www.linux.org", "www.python.org"]))