Python：线程同步

锁定代码块：

threadLock = threading.Lock()
threadLock.acquire()
# somecode...
threadLock.release()

阻塞直到线程结束：

thread1 = myThread(1, "Thread-1", 1)
thread2 = myThread(2, "Thread-2", 2)
thread1.start()
thread2.start()
 
# 添加线程到线程列表
threads.append(thread1)
threads.append(thread2)
 
# 等待所有线程完成
for t in threads:
    t.join()
print "Exiting Main Thread"

join([time])方法: 等待至线程中止。
这阻塞调用线程直至线程的join()方法被调用中止：

• 正常退出
• 抛出未处理的异常
• 可选的超时发生。