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import Queue, threading, sys
from threading import Thread
import time,urllib
# working thread
class Worker(Thread):
   worker_count = 0
   def __init__( self, workQueue, resultQueue, timeout = 0, **kwds):
       Thread.__init__( self, **kwds )
       self.id = Worker.worker_count
       Worker.worker_count += 1
       self.setDaemon( True )
       self.workQueue = workQueue
       self.resultQueue = resultQueue
       self.timeout = timeout
       self.start( )
   def run( self ):
       ''' the get-some-work, do-some-work main loop of worker threads '''
       while True:
           try:
               callable, args, kwds = self.workQueue.get(timeout=self.timeout)
               res = callable(*args, **kwds)
               print "worker[%2d]: %s" % (self.id, str(res) )
               self.resultQueue.put( res )
           except Queue.Empty:
               break
           except :
               print 'worker[%2d]' % self.id, sys.exc_info()[:2]
               
class WorkerManager:
   def __init__( self, num_of_workers=10, timeout = 1):
       self.workQueue = Queue.Queue()
       self.resultQueue = Queue.Queue()
       self.workers = []
       self.timeout = timeout
       self._recruitThreads( num


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