#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2009 Doug Hellmann All rights reserved.
     #
     """
     """
     #end_pymotw_header
     
     import decimal
     import threading
     from Queue import Queue
     
     class Multiplier(threading.Thread):
         def __init__(self, a, b, prec, q):
             self.a = a
             self.b = b
             self.prec = prec
             self.q = q
             threading.Thread.__init__(self)
         def run(self):
             c = decimal.getcontext().copy()
             c.prec = self.prec
             decimal.setcontext(c)
             self.q.put( (self.prec, a * b) )
             return
     
     a = decimal.Decimal('3.14')
     b = decimal.Decimal('1.234')
     q = Queue()
     threads = [ Multiplier(a, b, i, q) for i in range(1, 6) ]
     for t in threads:
         t.start()
     
     for t in threads:
         t.join()
     
     for i in range(5):
         prec, value = q.get()
         print prec, '\t', value