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import threading
import time
import Queue

exitFlag = 0
queueLock = threading.Lock()
workQueue = Queue.Queue(10)
threads = []
threadID = 1
threadList = ["Thread-1", "Thread-2", "Thread-3"]
nameList = ["One", "Two", "Three", "Four", "Five"]


class MyThread(threading.Thread):
    def __init__(self, threadID, name, q):
        threading.Thread.__init__(self)
        self.threadID = threadID
        self.name = name
        self.q = q

    def run(self):
        print "Starting " + self.name
        process_data(self.name, self.q)
        print "Exiting " + self.name


def process_data(threadName, q):
    while not exitFlag:
        queueLock.acquire()
        if not workQueue.empty():
            data = q.get()
            queueLock.release()
            print "%s processing %s" % (threadName, data)
        else:
            queueLock.release()
        time.sleep(1)

# Creating new threads
for tName in threadList:
    thread = MyThread(threadID, tName, workQueue)
    thread.start()
    threads.append(thread)
    threadID += 1

# Fills the queue
queueLock.acquire()
for word in nameList:
    workQueue.put(word)
queueLock.release()

# Wait for queue to empty
while not workQueue.empty():
    pass

exitFlag = -1

# Notify threads that it's time to exit
for t in threads:
    t.join()

print "Exiting Main Thread"

import threading
import time

exitFlag = 0


class myThread(threading.Thread):
    def __init__(self, threadID, name, counter):
        threading.Thread.__init__(self)
        self.threadID = threadID
        self.name = name
        self.counter = counter

    def run(self):
        print("Starting" + self.name)
        # Get lock to sync threads
        threadLock.acquire()
        print_time(self.name, self.counter, 3)
        # Free lock to release next thread
        threadLock.release()


def print_time(threadName, delay, counter):
    while counter:
        if exitFlag:
            threading.exit()
        time.sleep(delay)
        print("%s %s" % (threadName, time.ctime(time.time())))
        counter -= 1


threadLock = threading.Lock()
threads = []

thread1 = myThread(1, "Thread-1", 1)
thread2 = myThread(2, "Thread-2", 2)

thread1.start()
thread2.start()

threads.append(thread1)
threads.append(thread2)

# Wait for all threads to complete
for t in threads:
    t.join()

print "Exiting main thread"

#Async, python

import threading
import time

exitFlag = 0


class myThread(threading.Thread):
    def __init__(self, threadID, name, counter):
        threading.Thread.__init__(self)
        self.threadID = threadID
        self.name = name
        self.counter = counter

    # overriding run function
    def run(self):
        print("Starting" + self.name)
        print_time(self.name, self.counter, 5)


def print_time(threadName, delay, counter):
    while counter:
        if exitFlag:
            threading.exit()
        time.sleep(delay)
        print("%s %s" % (threadName, time.ctime(time.time())))
        counter -= 1

# Creating new threads
thread1 = myThread(1, "Thread-1", 1)
thread2 = myThread(1, "Thread-2", 2)

# Starting the threads
thread1.start()
thread2.start()

print "Exiting main thread"