import logging import logging.config import logging.handlers import queue class TestQueueHandler(logging.handlers.QueueHandler): def __init__(self, *args, **kwargs): super().__init__(queue.Queue()) print('test' in kwargs) # True in 3.11 # False in 3.12 def main(): config = { 'version': 1, 'handlers': { 'default': { 'class': TestQueueHandler, 'test': '123' }, }, 'loggers': { 'a': { 'handlers': ['default'], }, } } logging.config.dictConfig(config) if __name__ == '__main__': main()