python log日志

小咪咪 2022-06-01 09:56 314阅读 0赞

python 日志管理，可通过引入logging包，实现日志管理

一、配置文件

*  创建一个配置文件，如logging.conf

[loggers]
    keys=root,console,file
    
    [logger_root]
    level=DEBUG
    handlers=rootHandler
    formatter=rootFormatter
    
    [logger_console]
    level=DEBUG
    handlers=consoleHandler
    formatter=consoleFormatter
    qualname=console
    
    [logger_file]
    level=DEBUG
    handlers=fileHandler
    formatter=fileFormatter
    qualname=file
    
    [handlers]
    keys=rootHandler,consoleHandler,fileHandler
    
    [handler_rootHandler]
    class=StreamHandler
    level=DEBUG
    formatter=rootFormatter
    args=(sys.stdout,)
    
    [handler_consoleHandler]
    class=StreamHandler
    level=DEBUG
    formatter=consoleFormatter
    args=(sys.stdout,)
    
    [handler_fileHandler]
    class=FileHandler
    level=DEBUG
    formatter=fileFormatter
    args=("./log.log","a")
    
    [formatters]
    keys=rootFormatter,consoleFormatter,fileFormatter
    
    [formatter_rootFormatter]
    format=[%(asctime)s][%(filename)s][line:%(lineno)d][%(levelname)s] %(message)s
    datefmt=%a, %d %b %Y %H:%M:%S
    
    [formatter_consoleFormatter]
    format=[%(asctime)s][%(filename)s][line:%(lineno)d][%(levelname)s] %(message)s
    datefmt=%a, %d %b %Y %H:%M:%S
    
    [formatter_fileFormatter]
    format=[%(asctime)s][%(filename)s][line:%(lineno)d][%(levelname)s] %(message)s
    datefmt=%a, %d %b %Y %H:%M:%S

*  调用log即可
 *      import logging.config
        
        logging.config.fileConfig("./logging.conf")
        
        logger = logging.getLogger('file')
        logger.debug("debug message")
        logger.info("info message")
        logger.warn("warn message")
        logger.warning("warning message")
        logger.critical("critical message")

二、不用配置文件，直接撸代码

import logging
    
    from colorlog import ColoredFormatter
    
    
    def create_console_formatter(formatter='%(log_color)s[%(asctime)s][%(filename)s][line:%(lineno)d][%(levelname)s] %(message)s'):
        return formatter
    
    
    def create_file_formatter(formatter='%(log_color)s[%(asctime)s][%(filename)s][line:%(lineno)d][%(levelname)s] %(message)s'):
        return formatter
    
    #color不同level，不同颜色
    def color_formatter(formatter):
        return ColoredFormatter(formatter)
    
    
    def create_console_handler(formatter=ColoredFormatter(create_console_formatter()), level=logging.DEBUG):
        console_handler = logging.StreamHandler()
        console_handler.setLevel(level)
        console_handler.setFormatter(formatter)
        return console_handler
    
    
    def create_file_handler(formatter=ColoredFormatter(create_console_formatter()), level=logging.DEBUG,
                            log_file='./log.log', mode='a',encoding='UTF-8'):
        file_handler = logging.FileHandler(log_file, mode, encoding)
        file_handler.setLevel(level)
        file_handler.setFormatter(formatter)
        return file_handler

调用时，直接引入即可

console_handler = create_console_handler()
    file_handler = create_file_handler()
    logger = logging.getLogger("console")
    logger.setLevel(logging.DEBUG)
    logger.addHandler(console_handler)
    logger.addHandler(file_handler)

logger.debug("debug")
    logger.info("info")
    logger.warning("warning")
    logger.error("error")
    logger.critical("critical")

也可进一步封装方便调用