logging日志模块

   一、日志级别

CRITICAL = 50 #FATAL = CRITICAL
ERROR = 40
WARNING = 30 #WARN = WARNING
INFO = 20
DEBUG = 10
NOTSET = 0 #不设置

二、默认级别为warning，默认打印到终端

 1 import logging
 2 
 3 logging.debug('调试debug')
 4 logging.info('消息info')
 5 logging.warning('警告warn')
 6 logging.error('错误error')
 7 logging.critical('严重critical')
 8 
 9 '''
10 WARNING:root:警告warn
11 ERROR:root:错误error
12 CRITICAL:root:严重critical
13 '''

相应级别