import logginglogging.basicConfig(level=logging.DEBUG,                    format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',                    datefmt='%a, %d %b %Y %H:%M:%S',                    filename='test.log',                    filemode='w')logging.debug('debug message')logging.info('info message')logging.warning('warning message')logging.error('error message')logging.critical('critical message')logger = logging.getLogger()logger.setLevel(logging.INFO)formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')handler = logging.FileHandler("log.txt", mode='w+')handler.setLevel(logging.ERROR)ch = logging.StreamHandler()ch.setLevel(logging.DEBUG)handler.setFormatter(formatter)ch.setFormatter(formatter)logger.addHandler(handler)logger.addHandler(ch)logging.debug('debug message')logging.info('info message')logging.warning('warning message')logging.error('error message')logging.critical('critical message')① 得到一个记录器② 设置日志等级③ 设置日志格式④ 生成一个handler对象⑤ 设置handler日志等级⑥ 日志记录器添加 hanler问题   logger.setLevel  与 handler.setLevel 区别https://blog.csdn.net/sunwukong_hadoop/article/details/80092009  Python3 logging详解

 

standard_format = '[%(asctime)s][%(threadName)s:%(thread)d][task_id:%(name)s][%(filename)s:%(lineno)d]' \                  '[%(levelname)s][%(message)s]' #其中name为getlogger指定的名字simple_format = '[%(levelname)s][%(asctime)s][%(filename)s:%(lineno)d]%(message)s'id_simple_format = '[%(levelname)s][%(asctime)s] %(message)s'logfile_name = "access.log"logfile_path = logfile_nameLOGGING_DIC = {    'version': 1,    'disable_existing_loggers': False,    'formatters': {        'standard': {            'format': standard_format        },        'simple': {            'format': simple_format        },    },    'filters': {},    'handlers': {        #打印到终端的日志        'console': {            'level': 'DEBUG',            'class': 'logging.StreamHandler',  # 打印到屏幕            'formatter': 'standard'        },        #打印到文件的日志,收集info及以上的日志        'default': {            'level': 'DEBUG',            'class': 'logging.handlers.RotatingFileHandler',  # 保存到文件            'formatter': 'standard',            'filename': logfile_path,  # 日志文件            'maxBytes': 1024*1024*5,  # 日志大小 5M            'backupCount': 5,            'encoding': 'utf-8',  # 日志文件的编码，再也不用担心中文log乱码了        },    },    'loggers': {        #logging.getLogger(__name__)拿到的logger配置        '': {            'handlers': ['default', 'console'],  # 这里把上面定义的两个handler都加上，即log数据既写入文件又打印到屏幕            'level': 'DEBUG',            'propagate': True,  # 向上（更高level的logger）传递        },    },}def log(taskname):    logging.config.dictConfig(LOGGING_DIC)    logger = logging.getLogger(taskname)    return logger