loguru serialize 减少字段 python

loguru serialize 默认的字段太多了，大多数根本不需要，大大浪费了日志存储空间：

from loguru import logger import syslogger.remove()logger.add(sys.stdout, serialize='json')logger.debug(f'哈哈')

输出：

{"text": "2022-08-28 01:11:45.258 | DEBUG| __main__::9 - 哈哈\n", "record": {"elapsed": {"repr": "0:00:00.004474", "seconds": 0.004474}, "exception": null, "extra": {}, "file": {"name": "003.py", "path": "/home/bot/Desktop/ideaboom/test_logger/003.py"}, "function": "", "level": {"icon": "", "name": "DEBUG", "no": 10}, "line": 9, "message": "哈哈", "module": "003", "name": "__main__", "process": {"id": 282787, "name": "MainProcess"}, "thread": {"id": 139949730423424, "name": "MainThread"}, "time": {"repr": "2022-08-28 01:11:45.258317+08:00", "timestamp": 1661620305.258317}}}

我们需要减少这些没用的字段
【loguru serialize 减少字段】使用类似『猴子补丁』的方式来实现：

from loguru._recattrs import RecordException from loguru._handler import Handler from loguru import logger import sys import jsondef _serialize_record(text: str, record: dict): exception: RecordException = record["exception"]if exception is not None: exception = { "type": None if exception.type is None else exception.type.__name__, "value": exception.value, "traceback": bool(exception.traceback), }serializable = { "text": text, "record": { "extra": record["extra"], }, }return json.dumps(serializable, default=str, ensure_ascii=False) + "\n"Handler._serialize_record = staticmethod(_serialize_record)logger.remove()logger.add(sys.stdout, serialize='json')logger.debug(f'哈哈')

输出：