python logging模块的分文件存放详析

--- Logging error ---
 Traceback (most recent call last):
 '省略部分信息'
 PermissionError: [WinError 32] 另一个程序正在使用此文件，进程无法访问。

import logging
from logging import handlers
from concurrent_log_handler import ConcurrentRotatingFileHandler
def set_basic_logger():
    path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
    log_path = path + '/Log/'
    log_file = log_path + 'mockSystem.log'
    err_file = log_path + 'mockSystemErr.log'
    
    # 定制输出格式
    fORMatter = logging.Formatter(
        '[%(asctime)s] %(filename)s -> %(funcName)s line:%(lineno)d [%(levelname)s] : %(message)s')

    # # 所有日志在一个文件中存储
    # handler = logging.FileHandler(log_file, encoding='utf-8', mode='a+')
    # 按天分文件存储，保存最近30天的日志
    handler = handlers.TimedRotatingFileHandler(log_file, when='d', interval=1, backupCount=30, encoding='utf-8', delay=True)
    # 按文件大小分文件存储，每个文件10字节，保留10个文件
    # handler = handlers.RotatingFileHandler(log_file, maxBytes=10, backupCount=10,
    #                                        encoding='utf-8', delay=True)
    # 按文件大小分文件存储，每个文件10字节，保留10个文件
    # handler = ConcurrentRotatingFileHandler(log_file, maxBytes=10, backupCount=10)
    handler.setLevel(logging.INFO)
    handler.setFormatter(formatter)
    # err_handler = ConcurrentRotatingFileHandler(err_file, encoding='utf-8', mode='a+')  # 输出到err_log文件
    err_handler = handlers.TimedRotatingFileHandler(err_file, when='d', interval=1, backupCount=30,
                                                   encoding='utf-8', delay=True)
    # err_handler = handlers.RotatingFileHandler(err_file, maxBytes=10, backupCount=10,
    #                                            encoding='utf-8', delay=True)
    # err_handler = ConcurrentRotatingFileHandler(err_file, maxBytes=10, backupCount=10)
    err_handler.setLevel(logging.WARNING)
    err_handler.setFormatter(formatter)

    logging.basicConfig(
        level=logging.DEBUG,
        format='[%(asctime)s] %(filename)s -> %(funcName)s line:%(lineno)d [%(levelname)s] : %(message)s',
        handlers=[handler, err_handler]
    )

from customer_log imoprt set_basic_logger
import mu
set_basic_logger()
mu.show_cur_info()

import logging
def show_cur_info():
	msg = 'DDDddd'
	print(msg)
	logging.info(msg