由于 jsonschema 无法打开 jupyter notebook [已经在 stackoverflow 上尝试过其他解决方案]

Question

我在 Windows 10 机器上使用 python 3.8。 我通常在其中使用 VS Code 和 ipynb（没有 anaconda），一切运行顺利 几天前，我开始遇到以下错误：

    Traceback (most recent call last):
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\site-packages\nbformat\validator.py", line 12, in <module>
    from jsonschema import ValidationError
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\site-packages\jsonschema\__init__.py", line 34, in <module>
    __version__ = metadata.version("jsonschema")
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\importlib\metadata.py", line 531, in version
    return distribution(distribution_name).version
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\importlib\metadata.py", line 504, in distribution
    return Distribution.from_name(distribution_name)
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\importlib\metadata.py", line 177, in from_name
    raise PackageNotFoundError(name)
importlib.metadata.PackageNotFoundError: jsonschema

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\kshit\OneDrive - University of Waterloo\Programming\Python\Installation\Scripts\jupyter-notebook.EXE\__main__.py", line 5, in <module>
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\site-packages\notebook\notebookapp.py", line 80, in <module>
    from .services.contents.manager import ContentsManager
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\site-packages\notebook\services\contents\manager.py", line 17, in <module>
    from nbformat import sign, validate as validate_nb, ValidationError
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\site-packages\nbformat\__init__.py", line 32, in <module>
    from .validator import validate, ValidationError
  File "c:\users\kshit\onedrive - university of waterloo\programming\python\installation\lib\site-packages\nbformat\validator.py", line 23, in <module>
    raise ImportError(str(e) + verbose_msg)
ImportError: jsonschema

    Jupyter notebook format depends on the jsonschema package:

        https://pypi.python.org/pypi/jsonschema

    Please install it first.

我尝试在stackoverflow上搜索解决方案： Can't use Jupyter Notebook: jsonschema apparently missing

但是那里的答案都没有对我有用。

我尝试多次升级 jsonschema、jupyter 和 pip 本身，但无济于事。 也尝试在 Pycharm 中运行它， 而且我相信我的 python 环境中没有改变任何东西。

非常感谢任何帮助。

谢谢， 克什蒂杰。

Answer 1

你不应该使用pip install --upgrade pip 来升级 pip - 它会抛出一些错误。你应该从网站上这样做。 jupyter notebook 的临时解决方案是 Google Colab - colab.research.withgoogle.com。它还使用 .ipynb。希望这会有所帮助！