Python的log

关键代码

调用方：

from Logger import MyLogger
import logging
import sys, os

def getLogger():
    # get the file name
    fileUrl = sys.argv[0]
    filepath, tmpfilename = os.path.split(fileUrl)
    shotname, extension = os.path.splitext(tmpfilename)
    
    # get the logger object
    logger = MyLogger(logname='log.txt', loglevel=1, logger=shotname).getlog()
    return logger

logger =getLogger()
logger.debug("Hoory, show!")

Logger.py

#开发一个日志系统， 既要把日志输出到控制台， 还要写入日志文件  
import logging

class MyLogger():
    format_dict = {
        1 : logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s'),
        2 : logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s'),
        3 : logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s'),
        4 : logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s'),
        5 : logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
    }

    def __init__(self, logname, loglevel, logger):
        '''
           指定保存日志的文件路径，日志级别，以及调用文件
           将日志存入到指定的文件中
        '''

        # 创建一个logger
        self.logger = logging.getLogger(logger)
        self.logger.setLevel(logging.DEBUG)

        # 创建一个handler，用于写入日志文件
        fh = logging.FileHandler(logname)
        fh.setLevel(logging.DEBUG)

        # 再创建一个handler，用于输出到控制台
        ch = logging.StreamHandler()
        ch.setLevel(logging.DEBUG)

        # 定义handler的输出格式
        formatter = logging.Formatter('%(asctime)s %(name)s %(thread)d %(levelname)s %(message)s')
        fh.setFormatter(formatter)
        ch.setFormatter(formatter)

        # only first time need to add the handler
        if(self.logger.hasHandlers() == False):
            self.logger.addHandler(fh)
            self.logger.addHandler(ch)

   
    def getlog(self):
        return self.logger

Logger相关属性

可以通过下面的代码来进行设置（基本上不需要这么设置，因为通过getlogger()获取的logger对象并没有集成root的相关配置）：

logging.basicConfig(filename="log2.txt", level=logging.WARNING)

 

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