打开jupyter notebook闪退

Question

(base) C:\Users\HUAWEI>jupyter Notebook
Traceback (most recent call last):
  File "D:\JC\JuniorSecondHalfSemester\PyTorch\Anaconda\lib\site-packages\notebook\traittypes.py", line 232, in _resolve_classes
    klass = self._resolve_string(klass)
  File "C:\Users\HUAWEI\AppData\Roaming\Python\Python39\site-packages\traitlets\traitlets.py", line 2015, in _resolve_string
    return import_item(string)
  File "C:\Users\HUAWEI\AppData\Roaming\Python\Python39\site-packages\traitlets\utils\importstring.py", line 33, in import_item
    module = __import__(package, fromlist=[obj])
ModuleNotFoundError: No module named 'jupyter_server.contents'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\JC\JuniorSecondHalfSemester\PyTorch\Anaconda\Scripts\jupyter-Notebook-script.py", line 10, in <module>
    sys.exit(main())
  File "C:\Users\HUAWEI\AppData\Roaming\Python\Python39\site-packages\jupyter_core\application.py", line 283, in launch_instance
    super().launch_instance(argv=argv, **kwargs)
  File "C:\Users\HUAWEI\AppData\Roaming\Python\Python39\site-packages\traitlets\config\application.py", line 1073, in launch_instance
    app = cls.instance(**kwargs)
  File "C:\Users\HUAWEI\AppData\Roaming\Python\Python39\site-packages\traitlets\config\configurable.py", line 583, in instance
    inst = cls(*args, **kwargs)
  File "C:\Users\HUAWEI\AppData\Roaming\Python\Python39\site-packages\traitlets\traitlets.py", line 1292, in __new__
    inst.setup_instance(*args, **kwargs)
  File "C:\Users\HUAWEI\AppData\Roaming\Python\Python39\site-packages\traitlets\traitlets.py", line 1335, in setup_instance
    super(HasTraits, self).setup_instance(*args, **kwargs)
  File "C:\Users\HUAWEI\AppData\Roaming\Python\Python39\site-packages\traitlets\traitlets.py", line 1311, in setup_instance
    init(self)
  File "D:\JC\JuniorSecondHalfSemester\PyTorch\Anaconda\lib\site-packages\notebook\traittypes.py", line 223, in instance_init
    self._resolve_classes()
  File "D:\JC\JuniorSecondHalfSemester\PyTorch\Anaconda\lib\site-packages\notebook\traittypes.py", line 235, in _resolve_classes
    warn(f"{klass} is not importable. Is it installed?", ImportWarning)
TypeError: warn() missing 1 required keyword-only argument: 'stacklevel'

Answer 1

引自免费微信小程序：皆我百晓生

看起来你在尝试启动 Jupyter Notebook 时遇到了问题。根据提供的错误信息，这似乎是由于缺少 jupyter_server.contents 模块导致的。为了解决这个问题，你需要安装缺失的模块。这里是一个详细的步骤指导：

1. 首先，请确认你的 Python 环境是正确的。在命令行中输入以下命令：

   python --version
   

   如果输出的是 Anaconda 的 Python 版本（例如：Python 3.9），那么这个环境就是你要使用的。

2. 接下来，确保你是在 Anaconda Prompt 或者是与你刚才查看版本一致的环境中运行这些命令。如果不是，请激活你的 Anaconda 环境。如果你的环境名为 base，可以这样操作：

   conda activate base
   

3. 在正确环境中，使用 conda 命令来安装缺失的模块。运行以下命令：

   conda install -c conda-forge jupyter-server
   

   这个命令会从 conda-forge 渠道安装最新的 jupyter_server 包，它包含了 jupyter_server.contents 模块。

4. 安装完成后，再次尝试启动 Jupyter Notebook：

   jupyter notebook
   

   这次应该能正常启动了。

如果你仍然遇到问题，可能需要检查其他依赖项是否正确安装。不过按照上述步骤，通常能解决这个问题。如果还有任何疑问或问题，请随时告诉我。