checking hosts in parallel threads
Threads - What why and how example from a Well House Consultants training course
More on Threads - What why and how [link]
Source code: kicking Module: Y302
from threading import Thread
def __init__ (self,ip):
self.ip = ip
self.status = -1
""" This function runs individual and parallel pings.
Since ping is implemented differently on different
versions of Linux and Unix, you may need to change
your ping options and the regular expression that it
matches to get the correct results """
pingaling = os.popen("ping -q -c2 "+self.ip,"r")
# This code is what each parallel thread does
# the 'run' method is triggered when 'start' is called
line = pingaling.readline()
if not line: break
igot = re.findall(testit.lifeline,line)
self.status = int(igot)
testit.lifeline = re.compile(r"(\d) received")
report = ("No response","Partial Response","Alive")
pinglist = 
for host in range(60,70):
ip = "192.168.200."+str(host)
# create a thread, add it to a thread list
current = testit(ip)
# start the thread running
for pingle in pinglist:
# await the completion of each thread in turn
print "Status from ",pingle.ip,"is",report[pingle.status]
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