用with实现python的threading，新鲜啊

#!/usr/bin/env python
# -*- coding: utf-8 -*-


import threading
import logging

logging.basicConfig(level=logging.DEBUG,
                   format='(%(threadName)-10s)%(message)s', )

def threading_with(statement):
    with statement:
        logging.debug('%s acquired via with' %statement)

def threading_not_with(statement):
    statement.acquire()
    try:
        logging.debug('%s acquired directly' % statement)
    finally:
        statement.release()

if __name__ == "__main__":
    lock = threading.Lock()
    rlock = threading.RLock()
    condition = threading.Condition()
    mutex = threading.Semaphore(1)
    threading_synchronization_list = \
                                   [lock, rlock, condition, mutex]

    for statement in threading_synchronization_list :
        t1 = threading.Thread(target=threading_with,
        args=(statement,))
        t2 = threading.Thread(target=threading_not_with,
        args=(statement,))
        t1.start()
        t2.start()
        t1.join()
        t2.join()