[BUG] matcher插件部分logger.info(event)报错

[xingdeshoumin]

Python 版本

3.11.2

SuggarChat 版本

1.3.1

发生了什么?

1. 日志参数传递格式不匹配
   从代码片段看，logger.info()的方法签名是info(__message, *args, **kwargs)，即第一个参数必须是字符串格式的日志模板，后续参数用于填充模板中的占位符。如果直接传入event对象，且未定义__message的格式化逻辑，可能导致类型不兼容或参数解析异常
   。

如何复现

将README中demo放入自定义插件

期望的结果?

demo例程，规范调用logger

SuggarChat 运行日志

02-26 04:04:43 [SUCCESS] nonebot | OneBot V11 2240541753 | [notice.notify.poke]: {'time': 1740542683, 'self_id': 2240541753, 'post_type': 'notice', 'notice_type': 'notify', 'sub_type': 'poke', 'user_id': 2411426278, 'group_id': None, 'target_id': 2240541753, 'sender_id': 2411426278, 'action': '戳了戳', 'suffix': '', 'action_img_url': 'http://tianquan.gtimg.cn/nudgeaction/item/0/expression.jpg'}
02-26 04:04:43 [DEBUG] nonebot | Checking for matchers in priority 1...
02-26 04:04:43 [INFO] nonebot | Event will be handled by Matcher(type='notice', module=nonebot_plugin_suggarchat.suggar, lineno=324)
02-26 04:04:43 [DEBUG] nonebot | Running Matcher(type='notice', module=nonebot_plugin_suggarchat.suggar, lineno=324)
02-26 04:04:43 [DEBUG] nonebot | Running handler Dependent(call=_)
02-26 04:04:43 [INFO] nonebot | Event will be handled by Matcher(type='notice', module=nonebot_plugin_suggarchat.suggar, lineno=340)
02-26 04:04:43 [DEBUG] nonebot | Running Matcher(type='notice', module=nonebot_plugin_suggarchat.suggar, lineno=340)
02-26 04:04:43 [DEBUG] nonebot | Running handler Dependent(call=_)
02-26 04:04:43 [DEBUG] nonebot | Handler Dependent(call=_) skipped
02-26 04:04:43 [INFO] nonebot | Matcher(type='notice', module=nonebot_plugin_suggarchat.suggar, lineno=324) running complete
02-26 04:04:43 [DEBUG] nonebot | Handler Dependent(call=_) skipped
02-26 04:04:43 [INFO] nonebot | Matcher(type='notice', module=nonebot_plugin_suggarchat.suggar, lineno=340) running complete
02-26 04:04:43 [DEBUG] nonebot | Checking for matchers in priority 10...
02-26 04:04:43 [INFO] nonebot | Event will be handled by Matcher(type='notice', module=nonebot_plugin_suggarchat.suggar, lineno=337)
02-26 04:04:43 [DEBUG] nonebot | Running Matcher(type='notice', module=nonebot_plugin_suggarchat.suggar, lineno=337)
02-26 04:04:43 [DEBUG] nonebot | Running handler Dependent(call=_)
02-26 04:04:43 [INFO] nonebot_plugin_suggarchat | 开始为这个类型 poke 的事件运行处理。
02-26 04:04:43 [INFO] nonebot_plugin_suggarchat | 开始处理优先级为 10 的 poke 事件。
02-26 04:04:43 [INFO] nonebot_plugin_suggarchat | 开始运行处理器： '_'(~/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py:11)
02-26 04:04:43 [INFO] capoo | 收到聊天事件!
02-26 04:04:43 [ERROR] nonebot_plugin_suggarchat | 在运行处理器 '_'(~/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py:11) 时遇到了问题
02-26 04:04:43 [ERROR] nonebot_plugin_suggarchat | Exception type: AttributeError
02-26 04:04:43 [ERROR] nonebot_plugin_suggarchat | Exception message: 'PokeEvent' object has no attribute '_PokeEvent__nbevent'
02-26 04:04:43 [ERROR] nonebot_plugin_suggarchat |   File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/nonebot_plugin_suggarchat/matcher.py", line 139, in trigger_event
    await run_handle(handler, event,*new_args_tuple, **f_kwargs)
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/nonebot_plugin_suggarchat/matcher.py", line 20, in run_handle
    await handler(event, *args,**kwargs)
  File "/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py", line 13, in _
    logger.info(event)
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/loguru/_logger.py", line 2078, in info
    __self._log("INFO", False, __self._options, __message, args, kwargs)
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/loguru/_logger.py", line 2024, in _log
    "message": str(message),
               ^^^^^^^^^^^^
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/nonebot_plugin_suggarchat/event.py", line 314, in __str__
    return f"SUGGARPOKEEVENT({self.__event_type},{self.__nbevent},{self.__modelResponse},{self.__user_id},{self.__send_message})"
                                                  ^^^^^^^^^^^^^^

02-26 04:04:43 [INFO] nonebot_plugin_suggarchat | '_'(~/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py:11任务已结束。
02-26 04:04:43 [DEBUG] nonebot_plugin_suggarchat | Start to get response with model deepseek-ai/DeepSeek-V3
02-26 04:04:43 [DEBUG] nonebot_plugin_suggarchat | Preset：__main__
02-26 04:04:43 [DEBUG] nonebot_plugin_suggarchat | Key：eyJhbGc...
02-26 04:04:43 [DEBUG] nonebot_plugin_suggarchat | API base_url：https://api.studio.nebius.ai/v1/
02-26 04:04:46 [INFO] nonebot_plugin_suggarchat | 开始为这个类型 poke 的事件运行处理。
02-26 04:04:46 [INFO] nonebot_plugin_suggarchat | 开始处理优先级为 10 的 poke 事件。
02-26 04:04:46 [INFO] nonebot_plugin_suggarchat | 开始运行处理器： '_'(~/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py:11)
02-26 04:04:46 [INFO] capoo | 收到聊天事件!
02-26 04:04:46 [ERROR] nonebot_plugin_suggarchat | 在运行处理器 '_'(~/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py:11) 时遇到了问题
02-26 04:04:46 [ERROR] nonebot_plugin_suggarchat | Exception type: AttributeError
02-26 04:04:46 [ERROR] nonebot_plugin_suggarchat | Exception message: 'PokeEvent' object has no attribute '_PokeEvent__nbevent'
02-26 04:04:46 [ERROR] nonebot_plugin_suggarchat |   File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/nonebot_plugin_suggarchat/matcher.py", line 139, in trigger_event
    await run_handle(handler, event,*new_args_tuple, **f_kwargs)
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/nonebot_plugin_suggarchat/matcher.py", line 20, in run_handle
    await handler(event, *args,**kwargs)
  File "/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py", line 13, in _
    logger.info(event)
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/loguru/_logger.py", line 2078, in info
    __self._log("INFO", False, __self._options, __message, args, kwargs)
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/loguru/_logger.py", line 2024, in _log
    "message": str(message),
               ^^^^^^^^^^^^
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/nonebot_plugin_suggarchat/event.py", line 314, in __str__
    return f"SUGGARPOKEEVENT({self.__event_type},{self.__nbevent},{self.__modelResponse},{self.__user_id},{self.__send_message})"
                                                  ^^^^^^^^^^^^^^

02-26 04:04:46 [INFO] nonebot_plugin_suggarchat | '_'(~/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py:11任务已结束。
02-26 04:04:46 [DEBUG] nonebot | OneBot V11 | Calling API send_msg

[xingdeshoumin]

额外测试

这个错误是由于 ChatEvent 对象缺少私有属性 __nbevent 导致的。以下是逐步解释和解决方案：

错误原因分析

1. 属性缺失：错误信息 'ChatEvent' object has no attribute '_ChatEvent__nbevent' 表明尝试访问私有属性 __nbevent，但该属性未被正确初始化。
2. 私有属性机制：Python 中双下划线开头的属性（如 __nbevent）会被名称修饰（name mangling），实际存储为 _ClassName__attribute（这里是 _ChatEvent__nbevent）。如果在类内部或构造函数未正确定义该属性，访问时会报错。

02-26 09:43:03 [ERROR] nonebot_plugin_suggarchat | 在运行处理器 '_'(~/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py:33) 时遇到了问题
02-26 09:43:03 [ERROR] nonebot_plugin_suggarchat | Exception type: AttributeError
02-26 09:43:03 [ERROR] nonebot_plugin_suggarchat | Exception message: 'ChatEvent' object has no attribute '_ChatEvent__nbevent'
02-26 09:43:03 [ERROR] nonebot_plugin_suggarchat |   File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/nonebot_plugin_suggarchat/matcher.py", line 139, in trigger_event
    await run_handle(handler, event,*new_args_tuple, **f_kwargs)
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/nonebot_plugin_suggarchat/matcher.py", line 20, in run_handle
    await handler(event, *args,**kwargs)
  File "/app/data/kaqi_bot/kaqi_bot_nb/src/plugins/capoo/__init__.py", line 35, in _
    logger.info(str(event))
                ^^^^^^^^^^
  File "/app/data/kaqi_bot/kaqi_env/lib/python3.11/site-packages/nonebot_plugin_suggarchat/event.py", line 260, in __str__
    return f"SUGGARCHATEVENT({self.__event_type},{self.__nbevent},{self.__modelResponse},{self.__user_id},{self.__send_message})"
                                                  ^^^^^^^^^^^^^^

[xingdeshoumin]

猜测靠谱的原因

在Python类的继承中，若出现AttributeError: 'ChatEvent' object has no attribute '_ChatEvent__nbevent'错误，通常是由于子类访问父类私有属性时的命名规范冲突导致的。以下是结合用户代码的详细分析及解决方案：

一、问题定位

1. ​私有属性的名称修饰（Name Mangling）​
   Python中双下划线开头的属性（如__nbevent）会被解释器自动添加类名前缀，形成_ClassName__attribute的格式。例如：

在父类SuggarEvent中，self.__nbevent实际存储为_SuggarEvent__nbevent。
在子类ChatEvent中，直接访问self.__nbevent会被解释为_ChatEvent__nbevent，而该属性并未定义。
2. ​继承中的属性访问
子类ChatEvent通过super().__init__调用了父类SuggarEvent的构造函数，父类初始化了_SuggarEvent__nbevent属性。但子类若直接访问self.__nbevent，实际上会寻找子类自身的_ChatEvent__nbevent属性，导致AttributeError。

[xingdeshoumin]

报错解决

二、解决方案

1. ​调整属性命名规范
   将父类中的私有属性__nbevent改为受保护属性​（单下划线开头），允许子类访问：

python

class SuggarEvent:
    def __init__(self, model_response: str, nbevent: BaseEvent, user_id: int, send_message: MessageSegment):
        self._nbevent = nbevent  # 改为单下划线（受保护属性）

class ChatEvent(SuggarEvent):
    def __str__(self):
        return f"SUGGARCHATEVENT({self.__event_type},{self._nbevent},...)"  # 子类直接访问

[JohnRichard4096]

好