Bug: 报错There is no current event loop in thread 'MainThread'.

snowman-c commented 7 months ago

操作系统

Windows

Python 版本

Python 3.8.8

NoneBot 版本

nonebot cli version 1.2.7

Bilichat 版本

v4.12.1

描述问题

新建nonebot2项目后，按教程安装bilichat和手动安装缺失依赖后，报错There is no current event loop in thread 'MainThread'.

插件的配置项

No response

截图或日志

QQ图片20231210121340

snowman-c commented 7 months ago

补充：gocqhttp反向服务器配置图 QQ图片20231210122205

Well2333 commented 7 months ago

很怪异的问题，感觉是你Python出问题了，我这里无法复现。

建议更新Python为3.8.10或更新的版本（如3.10+）再尝试

snowman-c commented 7 months ago

python版本升级3.10.10解决问题

Well2333 commented 7 months ago

在Python 3.8和3.9版本中，尝试在没有活动的事件循环时创建asyncio.Semaphore对象会引发错误。这是因为asyncio.Semaphore需要在其内部使用事件循环来处理异步操作，而如果在当前线程中没有运行事件循环，Python就无法为Semaphore提供所需的上下文。从Python 3.10开始，asyncio模块在某些情况下允许在没有活动事件循环的情况下执行操作，这可能是为了增强灵活性和兼容性。因此，当在Python 3.8或3.9版本中遇到这个问题时，通常是因为代码尝试在一个尚未启动事件循环的线程中进行异步操作。

Jerry-FaGe commented 7 months ago

在 Python 3.8.10 的 Ubuntu 中运行最新版的 bilichat 5.0.0a9 出现了同样的问题

第一次报错：

12-20 11:10:34 [INFO] nonebot_plugin_bilichat | Cache folder for nonebot_plugin_bilichat is located at /home/Jerry_FaGe/.cache/nonebot2/nonebot_plugin_bilichat
12-20 11:10:34 [INFO] nonebot_plugin_bilichat | Data folder for nonebot_plugin_bilichat is located at /home/Jerry_FaGe/.local/share/nonebot2/nonebot_plugin_bilichat
12-20 11:10:34 [INFO] nonebot_plugin_bilichat | Use JsonFile as cache service
12-20 11:10:34 [INFO] nonebot_plugin_bilichat | Loading OpenAI Token enc model
12-20 11:10:34 [SUCCESS] nonebot_plugin_bilichat | Enc model cl100k_base load successfully
12-20 11:10:35 [ERROR] nonebot | Failed to import "nonebot_plugin_bilichat"
Traceback (most recent call last):
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/bin/nb", line 8, in <module>
    sys.exit(main())
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nb_cli/commands/main.py", line 30, in run
    run_bot(file, app)
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nb_cli/handlers/deploy.py", line 20, in run_bot
    module = importlib.import_module(module_name)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 848, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/Jerry_FaGe/bot/KyaRuChan/./bot.py", line 29, in <module>
    nonebot.load_from_toml("pyproject.toml")
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot/plugin/load.py", line 130, in load_from_toml
    return load_all_plugins(plugins, plugin_dirs)
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot/plugin/load.py", line 64, in load_all_plugins
    return manager.load_all_plugins()
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot/plugin/manager.py", line 176, in load_all_plugins
    return set(
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot/plugin/manager.py", line 177, in <genexpr>
    filter(None, (self.load_plugin(name) for name in self.available_plugins))
> File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot/plugin/manager.py", line 142, in load_plugin
    module = importlib.import_module(name)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot/plugin/manager.py", line 242, in exec_module
    super().exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 848, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/__init__.py", line 74, in <module>
    from . import adapters, api, commands  # noqa: F401, E402
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/api/__init__.py", line 7, in <module>
    from . import base, bilibili_auth, subs_config  # noqa: F401
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/api/subs_config.py", line 9, in <module>
    from ..subscribe.manager import SubscriptionSystem
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/subscribe/__init__.py", line 8, in <module>
    from .dynamic import fetch_dynamics_grpc, fetch_dynamics_rest
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/subscribe/dynamic.py", line 15, in <module>
    from ..adapters.base_content_parsing import check_cd
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/adapters/base_content_parsing.py", line 29, in <module>
    lock = asyncio.Lock()
  File "/usr/lib/python3.8/asyncio/locks.py", line 164, in __init__
    self._loop = events.get_event_loop()
  File "/usr/lib/python3.8/asyncio/events.py", line 639, in get_event_loop
    raise RuntimeError('There is no current event loop in thread %r.'
RuntimeError: There is no current event loop in thread 'MainThread'.

第二次报错（每次运行 nb run 都会重启一次，我不知道我是特例还是就这样设计的）：

12-20 11:11:01 [INFO] nonebot_plugin_bilichat | Use JsonFile as cache service
12-20 11:11:01 [ERROR] nonebot | Failed to import "nonebot_plugin_bilichat"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python3.8/multiprocessing/spawn.py", line 116, in spawn_main
    exitcode = _main(fd, parent_sentinel)
  ...
  ...
  ...

  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/__init__.py", line 74, in <module>
    from . import adapters, api, commands  # noqa: F401, E402
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/api/__init__.py", line 7, in <module>
    from . import base, bilibili_auth, subs_config  # noqa: F401
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/api/subs_config.py", line 9, in <module>
    from ..subscribe.manager import SubscriptionSystem
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/subscribe/__init__.py", line 8, in <module>
    from .dynamic import fetch_dynamics_grpc, fetch_dynamics_rest
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/subscribe/dynamic.py", line 15, in <module>
    from ..adapters.base_content_parsing import check_cd
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/adapters/base_content_parsing.py", line 11, in <module>
    from ..content import Column, Dynamic, Video
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/content/__init__.py", line 1, in <module>
    from .column import Column
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/content/column.py", line 12, in <module>
    from ..lib.draw.column import draw_column
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/lib/draw/__init__.py", line 5, in <module>
    font_semibold = str(get_font_sync("sarasa-mono-sc-semibold.ttf"))
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/lib/fonts_provider.py", line 53, in get_font_sync
    return loop.run_until_complete(get_font(font))
  File "uvloop/loop.pyx", line 1511, in uvloop.loop.Loop.run_until_complete
    raise
  File "uvloop/loop.pyx", line 1504, in uvloop.loop.Loop.run_until_complete
    self.run_forever()
  File "uvloop/loop.pyx", line 1377, in uvloop.loop.Loop.run_forever
    self._run(mode)
  File "uvloop/loop.pyx", line 518, in uvloop.loop.Loop._run
    raise RuntimeError('this event loop is already running.')
RuntimeError: this event loop is already running.

Well2333 commented 7 months ago

未知问题，lock的正确用法应该是包含在loop外创建的，而且我这里3.8.10无法复现，但有些情况下却能稳定复现，暂不知道成因

Jerry-FaGe commented 6 months ago

Ubuntu Python 3.8.10 运行新版 bilichat 5.0.1，第一次启动貌似正常了，但 nb 自动重启后会报错

第一次：

12-21 08:32:09 [INFO] nonebot_plugin_bilichat | Use JsonFile as cache service
12-21 08:32:09 [INFO] nonebot_plugin_bilichat | Loading OpenAI Token enc model
12-21 08:32:09 [SUCCESS] nonebot_plugin_bilichat | Enc model cl100k_base load successfully
12-21 08:32:10 [SUCCESS] nonebot_plugin_bilichat | OneBot V11 adapter was loaded successfully
12-21 08:32:11 [SUCCESS] nonebot_plugin_bilichat | OneBot V12 adapter was loaded successfully
12-21 08:32:11 [SUCCESS] nonebot_plugin_bilichat | 
****************************************************************************************
*                                                                                      *
*    SETTING UP BILICHAT WebUI AT                                                      *
*                                                                                      *
*    http://127.0.0.1:8080/bilichat/                                                   *
*                                                                                      *
*    WARNING: Bilichat WebUI is currently running on default path. Please consider     *
*    to use different path via adding config `bilichat_webui_path` in .env file.       *
*                                                                                      *
****************************************************************************************
12-21 08:32:11 [WARNING] nonebot | Duplicated prefix rule "关注"
12-21 08:32:12 [SUCCESS] nonebot | Succeeded to load plugin "nonebot_plugin_bilichat"

第二次（只放主要部分）：

12-21 08:32:47 [INFO] nonebot_plugin_bilichat | Use JsonFile as cache service
12-21 08:32:47 [INFO] nonebot_plugin_bilichat | Loading OpenAI Token enc model
/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/adapters/__init__.py:8: RuntimeWarning: coroutine 'encoding_for_model' was never awaited
  pass
RuntimeWarning: Enable tracemalloc to get the object allocation traceback
12-21 08:32:47 [INFO] nonebot_plugin_bilichat | Loading OpenAI Token enc model
/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/adapters/__init__.py:15: RuntimeWarning: coroutine 'encoding_for_model' was never awaited
  pass
RuntimeWarning: Enable tracemalloc to get the object allocation traceback
12-21 08:32:48 [INFO] nonebot_plugin_bilichat | Loading OpenAI Token enc model
12-21 08:32:48 [ERROR] nonebot | Failed to import "nonebot_plugin_bilichat"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python3.8/multiprocessing/spawn.py", line 116, in spawn_main
    exitcode = _main(fd, parent_sentinel)
  ...
  ...
  ...

  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/__init__.py", line 74, in <module>
    from . import adapters, api, commands  # noqa: F401, E402
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/api/__init__.py", line 18, in <module>
    from . import bilibili_auth, subs_config  # noqa: F401
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/api/subs_config.py", line 10, in <module>
    from ..subscribe.manager import SubscriptionSystem
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/subscribe/__init__.py", line 8, in <module>
    from .dynamic import fetch_dynamics_grpc, fetch_dynamics_rest
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/subscribe/dynamic.py", line 15, in <module>
    from ..adapters.base_content_parsing import check_cd
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/adapters/base_content_parsing.py", line 17, in <module>
    from ..summary import summarization
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/summary/__init__.py", line 6, in <module>
    from .openai_summarise import openai_summarization
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/summary/openai_summarise.py", line 10, in <module>
    from .openai import get_small_size_transcripts, get_summarise_prompt, openai_req
  File "/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot_plugin_bilichat/summary/openai.py", line 14, in <module>
    tiktoken_enc = asyncio.run(tiktoken_async.encoding_for_model(plugin_config.bilichat_openai_model))
  File "/usr/lib/python3.8/asyncio/runners.py", line 33, in run
    raise RuntimeError(
RuntimeError: asyncio.run() cannot be called from a running event loop
/home/Jerry_FaGe/bot/KyaRuChan/.venv/lib/python3.8/site-packages/nonebot/plugin/manager.py:169: RuntimeWarning: coroutine 'encoding_for_model' was never awaited
  logger.opt(colors=True, exception=e).error(
RuntimeWarning: Enable tracemalloc to get the object allocation traceback

Well2333 commented 6 months ago

自动重启本来就不在考虑范围内，请不要发送因自动重启造成的错误，此Issue保留的目的是找出为什么导致此理论上不应该出现的错误

Jerry-FaGe commented 6 months ago

那有没有一种可能，导致某些错误的原因就是开启了 fastapi_reload 呢？不知道您有没有看过这个：nonebot 文档中对于 fastapi_reload 的警告我觉得多少有点关系

Well2333 commented 6 months ago

那有没有一种可能，导致某些错误的原因就是开启了 fastapi_reload 呢？不知道您有没有看过这个：nonebot 文档中对于 fastapi_reload 的警告我觉得多少有点关系

这是一个单独且默认关闭的配置项，绝大多数情况下用户不会主动开启
此错误不仅发生在 Windows 平台，有的用户甚至在 docker 中可以复现
此问题发生在加载插件的阶段，此时 nonebot 未开启 uvicorn server，基本可以断言与 fastapi 无关，更有可能是 asyncio 自身的问题

Well2333 / nonebot-plugin-bilichat