Selenium basic knowledge debugging method

# -*- coding: utf-8 -*-
''' p48  Log tool class  logger.py  Use logging Module custom encapsulates a log class  @author freePHP @version 1.0.0 '''
import logging
import os.path
import time
from logging import handlers

class Logger(object):
    def __init__(self):
            self.logger = logging.getLogger("")
            #  Set the level of output 
            LEVELS = {
    'NOSET': logging.NOTSET,
                      'DEBUG': logging.DEBUG,
                      'INFO': logging.INFO,
                      'WARNING': logging.WARNING,
                      'ERROR': logging.ERROR,
                      'CRITICAL': logging.CRITICAL}
            #  Create file directory 
            logs_dir="logs2"
            if os.path.exists(logs_dir) and os.path.isdir(logs_dir):
                pass
            else:
                os.mkdir(logs_dir)
            #  modify log Save the location 
            timestamp=time.strftime("%Y-%m-%d",time.localtime())
            logfilename='%s.txt' % timestamp
            logfilepath=os.path.join(logs_dir,logfilename)
            rotatingFileHandler = logging.handlers.RotatingFileHandler(filename =logfilepath,
                                                                       maxBytes = 1024 * 1024 * 50,
                                                                       backupCount = 5)
            #  Set the output format 
            formatter = logging.Formatter('[%(asctime)s] [%(levelname)s] %(message)s', '%Y-%m-%d %H:%M:%S')
            rotatingFileHandler.setFormatter(formatter)
            #  Console handle 
            console = logging.StreamHandler()
            console.setLevel(logging.NOTSET)
            console.setFormatter(formatter)
            #  Add content to the log handle 
            self.logger.addHandler(rotatingFileHandler)
            self.logger.addHandler(console)
            self.logger.setLevel(logging.NOTSET)

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

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

    def warning(self, message):
            self.logger.warning(message)

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

application

# -*- coding: utf-8 -*-
#  call logger class  use_logger.py
import logging
import logger

mylogger = logger.Logger()
mylogger.debug("Start to debug it")
mylogger.info ("Start to info it")
mylogger.warning("Start to warning")
mylogger.error("Something is wrong")