再读《Parallel Programming with Python》并作笔记-白红宇

并发编程，在哪个语言里都属于高端应用，一定得会了才好意思说懂了这门语言。

在工作中用得并不是很多，忘了一些内容，就慢慢看，慢慢补上。

今天一天看了近三分之一（我看外文越来越快了？？：）），

实践一下多线程的threading模块。

#coding: utf-8import logging, threadingfrom Queue import Queuelogger = logging.getLogger()logger.setLevel(logging.DEBUG)formatter = logging.Formatter('%(asctime)s - %(message)s')ch = logging.StreamHandler()ch.setLevel(logging.DEBUG)ch.setFormatter(formatter)logger.addHandler(ch)fibo_dict = {}shared_queue = Queue()input_list = [30, 10, 55, 71]queue_condition = threading.Condition()def fibonacci_task(condition):    with condition:        while shared_queue.empty():            logger.info("[%s] - waiting for elements in queue..."                        % threading.current_thread().name)            condition.wait()        else:            value = shared_queue.get()            a, b = 0, 1            for item in range(value):                a, b = b, a + b                fibo_dict[value] = a        shared_queue.task_done()        logger.debug("[%s] fibonacci of key [%d] with result [%d]" %                     (threading.current_thread().name, value, fibo_dict[value]))def queue_task(condition):    logging.debug('Starting queue_task...')    with condition:        for item in input_list:            shared_queue.put(item)        logging.debug("Notifying fibonacci_task threads that the queue is ready to consume...")        condition.notifyAll()threads = [threading.Thread(target=fibonacci_task,                            args=(queue_condition,)) for i in range(4)][thread.start() for thread in threads]prod = threading.Thread(name="queue_task_thread", target=queue_task,                        args=(queue_condition,))prod.start()[thread.join() for thread in threads]