debian

Debian中Python日志配置技巧

小樊
41
2025-07-22 06:13:19
栏目: 编程语言

在Debian系统中配置Python日志通常涉及以下几个步骤:

选择日志库

创建日志配置文件

import logging
import logging.config

logging.config.dictConfig({
    'version': 1,
    'formatters': {
        'standard': {
            'format': '%(asctime)s [%(levelname)s] %(name)s: %(message)s'
        },
    },
    'handlers': {
        'default': {
            'level': 'INFO',
            'class': 'logging.StreamHandler',
            'formatter': 'standard',
        },
    },
    'loggers': {
        '': {  # root logger
            'handlers': ['default'],
            'level': 'INFO',
            'propagate': True,
        },
    },
})

logger = logging.getLogger(__name__)
logger.info('This is an info message')
logger.error('This is an error message')

使用配置文件

import logging
import logging.config

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

logger = logging.getLogger(__name__)
logger.info('This is an info message')
logger.error('This is an error message')

日志级别

日志格式

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

日志处理器

from logging.handlers import RotatingFileHandler

handler = RotatingFileHandler('app.log', maxBytes=10 * 1024 * 1024, backupCount=5)
handler.setLevel(logging.INFO)
logger.addHandler(handler)

日志记录器

logger = logging.getLogger('my_logger')
logger.setLevel(logging.DEBUG)

日志轮转

from logging.handlers import TimedRotatingFileHandler

handler = TimedRotatingFileHandler('app.log', when='midnight', interval=1, backupCount=7)
handler.setLevel(logging.DEBUG)
logger.addHandler(handler)

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