logging模块处理

import logging
from tornado.options import define, options
set_logging.log_setting()

define("port", default=8600, help="run on the given port", type=int)
define("isdebug", default=True, help="if it is in debug mode", type=bool)
options.logging = None
options.parse_command_line()

import logging
import logging.handlers

def log_setting(log_file='', log_level=logging.DEBUG, backup_cnt=5,is_init=False):
    logger = logging.getLogger()
    handler = logging.StreamHandler()
    formatter = logging.Formatter("%(asctime)s %(levelname)s %(filename)s:%(lineno)s %(message)s", "%Y-%m-%d %H:%M:%S")
    handler.setFormatter(formatter)
    logger.addHandler(handler)
    if log_file:
        handler = logging.handlers.TimedRotatingFileHandler(
            filename=log_file,
            when="midnight",
            backupCount=backup_cnt)
        handler.setFormatter(formatter)
        if is_init:
            logger.handlers = []
        logger.addHandler(handler)
    logger.setLevel(log_level)
    return logger

import logging
import logging.handlers


fmt = '%(asctime)s %(levelname)s %(filename)s:%(lineno)s %(message)s'
datefmt='%Y-%m-%d %H:%M:%S'

logger = logging.getLogger()
file_handler = logging.handlers.TimedRotatingFileHandler(
            filename = '../logs/flush_v3.log',
            when = "midnight",
            backupCount = 5)
file_handler.setFormatter(logging.Formatter(fmt, datefmt))
logger.addHandler(file_handler)
logger.setLevel('DEBUG')