Python中如何实现日志记录？日志文件如何按大小分割？

import logging
from logging.handlers import RotatingFileHandler

# 配置日志记录器
logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)

# 创建一个RotatingFileHandler
handler = RotatingFileHandler('my_log.log', maxBytes=1024*1024, backupCount=5) # 每个日志文件最大1MB，保留5个旧日志文件
handler.setLevel(logging.INFO)

# 创建一个格式化器
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)

# 将handler添加到logger
logger.addHandler(handler)

# 记录一些日志
logger.info('This is an info message')
logger.warning('This is a warning message')
logger.error('This is an error message')

formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(module)s:%(lineno)d - %(message)s')

import logging
from logging.handlers import TimedRotatingFileHandler
import datetime

# 创建一个TimedRotatingFileHandler
handler = TimedRotatingFileHandler('my_log.log', when="midnight", interval=1, backupCount=7) # 每天凌晨创建一个新的日志文件，保留7天的日志
handler.suffix = "%Y%m%d" # 日志文件名的后缀
handler.extMatch = re.compile(r"^\d{8}$")

# 创建一个格式化器
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)

# 将handler添加到logger
logger.addHandler(handler)

# 记录一些日志
logger.info('This is an info message')
logger.warning('This is a warning message')
logger.error('This is an error message')

import logging
import logging.handlers
import multiprocessing
import queue

# 创建一个队列
log_queue = queue.Queue(-1)

# 配置日志记录器
logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)

# 创建一个QueueHandler
queue_handler = logging.handlers.QueueHandler(log_queue)
logger.addHandler(queue_handler)

# 定义一个日志监听器
def worker_process(log_queue):
    listener = logging.handlers.QueueListener(log_queue, logging.FileHandler('my_log.log'))
    listener.start()
    listener.stop()

# 创建一个进程
process = multiprocessing.Process(target=worker_process, args=(log_queue,))
process.start()

# 记录一些日志
logger.info('This is an info message from main process')

# 在子进程中记录日志
def log_from_child():
    logger = logging.getLogger(__name__)
    logger.info('This is an info message from child process')

child_process = multiprocessing.Process(target=log_from_child)
child_process.start()
child_process.join()

process.join()

import logging.config
import yaml

# 从YAML文件加载配置
with open('logging.yaml', 'r') as f:
    config = yaml.safe_load(f)
    logging.config.dictConfig(config)

# 获取日志记录器
logger = logging.getLogger(__name__)

# 记录一些日志
logger.info('This is an info message')

version: 1
formatters:
  simple:
    format: '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
handlers:
  console:
    class: logging.StreamHandler
    level: DEBUG
    formatter: simple
    stream: ext://sys.stdout
  file:
    class: logging.handlers.RotatingFileHandler
    level: INFO
    formatter: simple
    filename: my_log.log
    maxBytes: 10485760 # 10MB
    backupCount: 5
root:
  level: INFO
  handlers: [console, file]
disable_existing_loggers: False