代码

#Author Kang

import logging

logging.basicConfig(filename="app.log",level=logging.WARNING,format='%(asctime)s %(levelname)s: %(message)s', datefmt='%m/%d/%Y %I:%M:%S %p')

logging.info("app info test")
logging.warning("app warning message")
logging.error("app error message")

#filename：app.log文件，用于保存日志输出信息
#level：日志级别
#format：日志输出的格式

结果：app.log文件信息
02/18/2019 06:27:10 PM WARNING: app warning message
02/18/2019 06:27:10 PM ERROR: app error message

日志格式

应用代码

import logging
from logging.handlers import TimedRotatingFileHandler

class Log():
    def __init__(self):
        self.logger = logging.getLogger('Operation Mail')
        self.logger.setLevel(logging.INFO)
        ch = TimedRotatingFileHandler("access.log", when='D', encoding="utf-8")
        ch.setLevel(logging.DEBUG)
        formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
        ch.setFormatter(formatter)
        self.logger.addHandler(ch)

    def debug(self,log_msg):
        self.logger.debug(log_msg)

    def info(self,log_msg):
        self.logger.info(log_msg)

    def error(self,log_msg):
        self.logger.error(log_msg)

    def cirtical(self,log_msg):
        self.logger.critical(log_msg)