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log_01.py
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log_01.py
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#!/usr/bin/python3
# coding: utf-8
"""
初次使用日志
研究日志记录器、处理器和格式化之间的关系
"""
import logging
from logging import StreamHandler, FileHandler
from logging import Formatter
# StreamHandler 是控制输出的处理器
def new_logger(name):
# 创建日志记录器
logger = logging.getLogger(name) # root
logger.setLevel(logging.DEBUG)
# 创建日志处理器
handler = StreamHandler()
handler.setLevel(logging.INFO)
# 创建日志格式化对象
formatter = Formatter(fmt='[ %(asctime)s of %(name)s - %(levelname)s ] %(message)s',
datefmt='%Y-%m-%d %H:%M:%S') # time/datetime
# 设置处理器的日志格式化
handler.setFormatter(formatter)
# 添加记录器的处理器
logger.addHandler(handler)
fileHandler = FileHandler('access.log', encoding='utf-8')
fileHandler.setLevel(logging.DEBUG)
fileHandler.setFormatter(Formatter(
'<%(asctime)s> at %(lineno)s of %(name)s: %(message)s',
'%m-%d %H:%M:%S'
))
logger.addHandler(fileHandler)
return logger
if __name__ == '__main__':
logger = new_logger('spider')
logger.info('hi, disen, 我正在认真的听课!')
logger.debug('Disen, 我今天有点小意外,不能如时去听您课了!')