python使用装饰器作日志处理的方法

```#coding=utf8import tracebackimport loggingfrom logging.handlers import TimedRotatingFileHandlerdef logger(func): def inner(*args, **kwargs): #1 try:  #print "Arguments were: %s, %s" % (args, kwargs)  func(*args, **kwargs) #2 except:  #print 'error',traceback.format_exc()  print 'error' return innerdef loggerInFile(filename):#带参数的装饰器需要2层装饰器实现,第一层传参数，第二层传函数，每层函数在上一层返回 def decorator(func): def inner(*args, **kwargs): #1  logFilePath = filename # 日志按日期滚动，保留5天  logger = logging.getLogger()  logger.setLevel(logging.INFO)  handler = TimedRotatingFileHandler(logFilePath,       when="d",       interval=1,       backupCount=5)  formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')  handler.setFormatter(formatter)  logger.addHandler(handler)  try:  #print "Arguments were: %s, %s" % (args, kwargs)  result = func(*args, **kwargs) #2  logger.info(result)  except:  logger.error(traceback.format_exc()) return inner return decorator@loggerdef test(): print 2/0test()@loggerInFile('newloglog')def test2(n): print 100/ntest2(10)test2(0)print 'end'```