优化升级logging封装RotatingFileHandler

1.升级优化，提供用户自定义日志level文件夹生成控制，提供日志错误显示到日志打印异常补获到日志

# coding=utf-8
import logging
import time
import os
import logging.handlers

def logger(appName,rootstdout=True,handlerList=None):

    log_fmt= "%(asctime)s --%(name)s [%(levelname)s]:\n%(message)s"
    c_fmt="%(asctime)s --%(name)s [%(levelname)s]:\n%(message)s"
    date_format = "%Y-%m-%d %H:%M:%S %a"
    #设置Console输出level
    logging.basicConfig(level=logging.DEBUG,
                            format=c_fmt,
                            datefmt=date_format,

                            )

    levels=[]
    if isinstance(handlerList,list):
        if handlerList.__contains__("I") or handlerList.__contains__("Info"):
            levels.append("Info")
        if handlerList.__contains__("D") or handlerList.__contains__("Debug"):
            levels.append("Debug")
        if handlerList.__contains__("E") or handlerList.__contains__("Error"):
            levels.append("Error")
        if handlerList.__contains__("W") or handlerList.__contains__("Warning"):
            levels.append("Warning")
        if levels:
            stamp = time.strftime("%Y%m%d", time.localtime())+".log"
            logsdir=os.path.join(os.getcwd(),"logs")
            if os.path.exists(logsdir):
                for p in levels:
                    if os.path.exists(os.path.join(logsdir,p)):
                        pass
                    else:
                        os.mkdir(os.path.join(logsdir,p))
            else:
                os.mkdir(logsdir)
                for p in levels:
                     print(os.path.join(logsdir,p))
                     os.mkdir(os.path.join(logsdir,p))

            f_dict={}
            for i in levels:
                filename=os.path.join(logsdir,i,stamp)
                f_dict[i]=filename
            logger= logging.getLogger(appName)

            for k,v in f_dict.items():
                    handler=logging.handlers.RotatingFileHandler(filename=v, maxBytes=1024*1024*50, backupCount=5,encoding="utf-8",delay=False)
                    h_fmt=logging.Formatter(log_fmt)
                    handler.setFormatter(h_fmt)
                    if k=="E" or k=="Error":
                        handler.setLevel(logging.ERROR)
                    elif k=="I" or k=="Info":
                        handler.setLevel(logging.INFO)
                    elif k== "W" or k=="Warning":
                         handler.setLevel(logging.WARNING)
                    elif k=="D" or k=="Debug":
                         handler.setLevel(logging.DEBUG)
                    else:
                        raise NameError("check your logLevel Name is corrected or not")
                    logger.addHandler(handler)
            logger.propagate = rootstdout
            return  logger
        else:
            raise TypeError("check handlerList at least one corrected logLevel in:'Error','Info','Warning','Debug'")
    else:
        raise NameError("handlerList expected type is list but get type {}".format(type(handlerList).__name__))
if __name__ == "__main__":
        logger=logger("root",rootstdout=True,handlerList=['I'])

        time.sleep(0.01)
        logger.info("file test",exc_info=True)
        logger.debug("bebug test")
        logger.error("error test")
        logger.warning("warning test")