Python优雅处理日志记录的方法小结

import logging

logging.basicConfig(level=logging.DEBUG, filename='app.log', filemode='w',
                    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')

# 创建日志记录器
logger = logging.getLogger('my_app')

# 记录日志
logger.debug('This is a debug message')
logger.info('This is an info message')
logger.warning('This is a warning message')
logger.error('This is an error message')
logger.critical('This is a critical message')

formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')

console_handler = logging.StreamHandler()
console_handler.setFormatter(formatter)
logger.addHandler(console_handler)

logger.debug('This is a debug message')
logger.info('This is an info message')
logger.warning('This is a warning message')
logger.error('This is an error message')
logger.critical('This is a critical message')

import logging.config

logging.config.fileConfig('logging.conf')

logger = logging.getLogger('my_app')

[loggers]
keys=root,my_app

[logger_my_app]
level=DEBUG
handlers=consoleHandler

[handler_consoleHandler]
class=StreamHandler
level=DEBUG
formatter=basicFormatter
args=(sys.stdout,)

[formatter_basicFormatter]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
datefmt=

class InfoFilter(logging.Filter):
    def filter(self, record):
        return record.levelno == logging.INFO

console_handler.addFilter(InfoFilter())

from logging.handlers import RotatingFileHandler

handler = RotatingFileHandler('app.log', maxBytes=10000, backupCount=5)
logger.addHandler(handler)