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python日志输出

# !/usr/bin/python
# -*- coding: utf-8 -*-

"""
@contact: 微信 1257309054
@file: 日志输出.py
@time: 2021/5/19 18:09
@author: LDC
"""
import logging
import os
import datetime

def make_log(msg, level='debug'):
    '''

    :param msg: 内容
    :param level: 日志级别，debug,info,error
    :return:
    '''
    # 打印日志
    # 创建日志文件夹
    if os.path.exists('./log') == False:
        os.mkdir("./log")

    SERVER_LOG_PATH = './log/{}.log'.format(datetime.datetime.now().strftime('%Y-%m-%d'))

    # 定义一个logging的对象，命名为mylog
    LOGGER = logging.getLogger('machine_data')

    # 设置级别为WARNING
    LOGGER.setLevel(logging.DEBUG if level == 'debug' else logging.INFO)
    if not LOGGER.handlers:
        # 创建一个handler，用于写入日志文件
        fh = logging.FileHandler(SERVER_LOG_PATH, encoding='utf-8')
    else:
        fh = LOGGER.handlers[0]
    fh.setLevel(logging.DEBUG if level == 'debug' else logging.INFO)
    # 定义handler的输出格式
    formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s', datefmt='%Y-%m-%d %H:%M:%S')
    fh.setFormatter(formatter)
    # 给Logger添加handler
    LOGGER.addHandler(fh)
    # 在控制台显示
    LOGGER.propagate = True
    LOGGER.__getattribute__(level)(msg)
    fh.close()

if __name__ == '__main__':
    make_log('hello world')

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