Kafka Producer(Python threading)

import threading
import time
import random
from kafka import KafkaProducer

producer = KafkaProducer(bootstrap_servers='192.168.1.10:9092')
threads = []

class MyThread(threading.Thread):
    def __init__(self, threadName, delay):
        threading.Thread.__init__(self)
        self.threadName=threadName
        self.delay=delay

    def run(self):
        sendinfo(self.threadName, self.delay)

def sendinfo( threadName, delay):
   count = 0
   while count < 5:
      time.sleep(delay)
      count += 1
      data = "".join(random.sample(
          ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
           'w', 'x', 'y', 'z'], 10)).replace(" ", "")

      word=("%s, %s, %s, %s" % (threadName, count, data, time.ctime(time.time())))
      producer.send('test', key=threadName, value=word)
      print (word)

try:
    t1=MyThread("Thread-1",0)
    threads.append(t1)
    t2=MyThread("Thread-2",0)
    threads.append(t2)
    t3=MyThread("Thread-3",0)
    threads.append(t3)

    for t in threads:
        t.start()

    for t in threads:
        t.join()

    producer.send('test', key="Thread-1", value="exit")
    producer.send('test', key="Thread-2", value="exit")
    producer.send('test', key="Thread-3", value="exit")

    print ("exit program with 0")
except:
   print ("Error: failed to run producer program")