但是，如果您仍然愿意，可以设置自己的日志级别:在logging模块中，_levelToName和_nameToLevel是日志记录名称和级别之间的映射. addLevelName()函数可以代替您手动添加它们.在此处，添加了名为 MESSAGE 的新日志记录级别，日志级别为 25 :import logging# Define MESSAGE log levelMESSAGE = 25# "Register" new loggin levellogging.addLevelName(MESSAGE, 'MESSAGE') # addLevelName(25, 'MESSAGE')# Verifyassert logging.getLevelName(MESSAGE) == 'MESSAGE'如果您不想创建自己的记录器类，但仍然希望记录其他日志级别，则可以在传统记录器上使用Logger.log(level, msg)方法:logging.log(MESSAGE, 'This is a message')直接添加消息 def message(self, msg, *args, **kwargs): if self.isEnabledFor(MESSAGE): self._log(MESSAGE, msg, args, **kwargs)使logging功能在logging中可用: logging.message = message # or setattr(logging, 'message', message)使记录器中的message()功能可用: logging.Logger.message = message # or setattr(logging.Logger, 'message', message)制作自定义Logger类您可以创建自己的logger类来创建message(msg)方法，与其他方法(例如info(msg)，warning(msg)等)类似地使用在下面的示例中，使用message(msg)方法创建了一个新的记录器，用于记录 MESSAGE :class MyLogger(logging.Logger): def message(self, msg, *args, **kwargs): if self.isEnabledFor(MESSAGE): self._log(MESSAGE, msg, args, **kwargs)获取记录器我不确定使其与logging.getLogger(name)一起使用的最佳方法是什么，但是下面是两种方法.参考评论，我认为第一种方法更好: 任一将新的记录器设置为默认的记录类，这意味着新的记录器实例将属于MyLogger类，而不是默认的logging.Logger类:logging.setLoggerClass(MyLogger)logger = logging.getLogger('A new logger name')logger.message('This seems to work')assert isInstance(logger, MyLogger) 或只需创建一个记录器实例并将其添加到活动logging.Manager实例中的loggerDict中( EDIT :不推荐，请参见注释): my_logger = MyLogger('Foo')logging.Logger.manager.loggerDict['Foo'] = my_loggerlogger = logging.getLogger('Foo')logger.message('This is the same instance as my_logger')assert logger is my_logger使用新的日志级别# Use the new logger classlogger.warning('Custom log levels might be a bad idea')logger.message('Here is a message')# Log with custom log level:logger.log(MESSAGE, 'This is a message')这假定MESSAGE被预定义为代表日志级别的整数. (例如前面提到的 25 )I have this code which works just fine for me.import loggingimport logging.handlerslogger = Nonedef create_logger(): global logger logger = logging.getLogger('Logger') logger.setLevel(logging.DEBUG) handler = logging.handlers.RotatingFileHandler("C:/Users/user/Desktop/info.log", maxBytes=1000000, backupCount=20) formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s') handler.setFormatter(formatter) logger.addHandler(handler)create_logger()logger.info("Text info")logger.debug("Text debug")logger.warning("Text warning")logger.error("Text error")logger.critical("Text critical")And the output looks great: Well, I want to add a new logging level like this:logger.message("Text message")And the output should be like thisThanks 解决方案 From Logging documentation (emphasis added):An overview of default logging levels:But if you still want to, you can make your own log level:In the logging-module, _levelToName and _nameToLevel are mappings between logging names and levels. Instead of manually adding to them, the addLevelName() function does this for you.Here, a new logging level called MESSAGE is added with log level 25:import logging# Define MESSAGE log levelMESSAGE = 25# "Register" new loggin levellogging.addLevelName(MESSAGE, 'MESSAGE') # addLevelName(25, 'MESSAGE')# Verifyassert logging.getLevelName(MESSAGE) == 'MESSAGE'If you don't want to make your own logger class but still wants to log other log levels, then you can use the Logger.log(level, msg)-method on the traditional loggers:logging.log(MESSAGE, 'This is a message')EDIT: Add message directly def message(self, msg, *args, **kwargs): if self.isEnabledFor(MESSAGE): self._log(MESSAGE, msg, args, **kwargs)Make the message()-function available in logging: logging.message = message # or setattr(logging, 'message', message)Make the message()-function available in the logger: logging.Logger.message = message # or setattr(logging.Logger, 'message', message)Make custom Logger classYou could make your own logger class to make a message(msg)-method, to be used similarily as the others (e.g. info(msg), warning(msg), etc.)In the following example, a new logger is made with a message(msg)-method to log MESSAGE:class MyLogger(logging.Logger): def message(self, msg, *args, **kwargs): if self.isEnabledFor(MESSAGE): self._log(MESSAGE, msg, args, **kwargs)Get loggerI'm not sure of what's the best way to make it work with logging.getLogger(name), but below are two approaches.Ref. comments, I believe the first approach is better:Either make the new logger the default logging class, which means new logger instances will be of the MyLogger class instead of the default logging.Logger class:logging.setLoggerClass(MyLogger)logger = logging.getLogger('A new logger name')logger.message('This seems to work')assert isInstance(logger, MyLogger)Or just make an instance of the logger and add it to the loggerDict in the active logging.Manager instance (EDIT: not recommended, see comments):my_logger = MyLogger('Foo')logging.Logger.manager.loggerDict['Foo'] = my_loggerlogger = logging.getLogger('Foo')logger.message('This is the same instance as my_logger')assert logger is my_loggerUse the new log level# Use the new logger classlogger.warning('Custom log levels might be a bad idea')logger.message('Here is a message')# Log with custom log level:logger.log(MESSAGE, 'This is a message')This assumes that MESSAGE is predefined as an integer numerical value representing the log level. (E.g. 25 as previously mentioned) 这篇关于Python3添加日志记录级别的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！
