import logging

logger = logging.getLogger('[test]') #留空则取根日志

logger.setLevel(logging.DEBUG)

fh = logging.FileHandler('logfilename.log') #打印至文件

fh.setLevel(logging.DEBUG)

ch = logging.StreamHandler()　　　　　　　　　#打印至控制台

ch.setLevel(logging.DEBUG)

formatter = logging.Formatter('%(asctime)s %(name)-12s %(levelname)-8s %(message)s')

fh.setFormatter(formatter)

sh.setFormatter(formatter)

logger.addHandler(fh)

logger.addHandler(ch)

logger.info('init logger...')