【Python】logging结合decorator模式实优化日志输出

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python内置的loging模块非常简便易用, 很适合程序运行日志的输出。

而结合python的装饰器模式，则可实现简明实用的代码。测试代码如下所示:

#! /usr/bin/env python2.7# -*- encoding: utf-8 -*-import logginglogging.basicConfig(format='[%(asctime)s] %(message)s', level=logging.INFO)def time_recorder(func):    """装饰器, 用在func方法执行前后, 增加运行信息"""    def wrapper():        logging.info("Begin to execute function: %s" % func.__name__)        func()        logging.info("Finish executing function: %s" % func.__name__)    return wrapper@time_recorderdef first_func():    print "I'm first_function. I'm doing something..."@time_recorderdef second_func():    print "I'm second_function. I'm doing something..."if __name__ == "__main__":    first_func()    second_func()

运行并得到输出:

[2014-04-01 18:02:13,724] Begin to execute function: first_funcI'm first_function. I'm doing something...[2014-04-01 18:02:13,725] Finish executing function: first_func[2014-04-01 18:02:13,725] Begin to execute function: second_funcI'm second_function. I'm doing something...[2014-04-01 18:02:13,725] Finish executing function: second_func

7 0