無論我輸入什么，jupyter-console 都會引發未命名的異常

Question

在 cmd 打開jupyter-console后，無論我輸入什么，我都會得到以下未命名的異常。 關於可能出錯的任何提示？

Unhandled exception in event loop:
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\asyncio\events.py", line 80, in _run
    self._context.run(self._callback, *self._args)
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\site-packages\prompt_toolkit\input\win32.py", line 612, in ready
    callback()
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\site-packages\prompt_toolkit\application\application.py", line 707, in read_from_input
    self.key_processor.process_keys()
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\site-packages\prompt_toolkit\key_binding\key_processor.py", line 270, in process_keys
    self._process_coroutine.send(key_press)
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\site-packages\prompt_toolkit\key_binding\key_processor.py", line 185, in _process
    self._call_handler(matches[-1], key_sequence=buffer[:])
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\site-packages\prompt_toolkit\key_binding\key_processor.py", line 320, in _call_handler
    handler.call(event)
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\site-packages\prompt_toolkit\key_binding\key_bindings.py", line 124, in call
    result = self.handler(event)
             ^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\site-packages\jupyter_console\ptshell.py", line 477, in _
    self.handle_iopub()
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\site-packages\jupyter_console\ptshell.py", line 854, in handle_iopub
    while run_sync(self.client.iopub_channel.msg_ready)():
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Seba\AppData\Local\Programs\Python\Python311\Lib\site-packages\jupyter_core\utils\__init__.py", line 149, in run_sync
    assert inspect.iscoroutinefunction(coro)

Exception
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Answer 1

查看jupyter-client安裝的版本是否>=8.0.0，這種情況下嘗試降級到7.4.9版本：

python -m pip install jupyter-client==7.4.9 --upgrade

不知道發生了什么，但這為我解決了這個問題。

注意：我使用的是 MacOS Ventura 13.1 和 python 3.9.6，但也檢查了 MacOS Catalina 10.15.7 和 python 3.10，降級 jupyter-client 解決了這個問題。