用with实现python的threading，新鲜啊

#!/usr/bin/env python# -*- coding: utf-8 -*-import threadingimport logginglogging.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()