在 python 3.9.1 中打开 jupyter 笔记本时出错

Question

I'm facing problem while trying to open jupyter notebook in python 3.9.1, the error is given at last, Plz someone can help me...This problem really tired me.

PS C:\WINDOWS\system32> pip install jupyter


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Requirement already satisfied: jupyter in c:\users\saquib\appdata\roaming\python\python39\site-packages (1.0.0)
Requirement already satisfied: qtconsole in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jupyter) (5.0.3)
Requirement already satisfied: notebook in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jupyter) (6.3.0)
Requirement already satisfied: ipywidgets in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jupyter) (7.6.3)
Requirement already satisfied: jupyter-console in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jupyter) (6.4.0)
Requirement already satisfied: ipykernel in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jupyter) (5.5.0)
Requirement already satisfied: nbconvert in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jupyter) (6.0.7)
Requirement already satisfied: traitlets>=4.1.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipykernel->jupyter) (5.0.5)
Requirement already satisfied: tornado>=4.2 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipykernel->jupyter) (6.1)
Requirement already satisfied: ipython>=5.0.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipykernel->jupyter) (7.22.0)
Requirement already satisfied: jupyter-client in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipykernel->jupyter) (6.1.12)
Requirement already satisfied: jedi>=0.16 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipython>=5.0.0->ipykernel->jupyter) (0.18.0)
Requirement already satisfied: pickleshare in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipython>=5.0.0->ipykernel->jupyter) (0.7.5)
Requirement already satisfied: pygments in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipython>=5.0.0->ipykernel->jupyter) (2.8.1)
Requirement already satisfied: decorator in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipython>=5.0.0->ipykernel->jupyter) (4.4.2)
Requirement already satisfied: backcall in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipython>=5.0.0->ipykernel->jupyter) (0.2.0)
Requirement already satisfied: colorama in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipython>=5.0.0->ipykernel->jupyter) (0.4.4)
Requirement already satisfied: setuptools>=18.5 in c:\program files\python39\lib\site-packages (from ipython>=5.0.0->ipykernel->jupyter) (49.2.1)
Requirement already satisfied: prompt-toolkit!=3.0.0,!=3.0.1,<3.1.0,>=2.0.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipython>=5.0.0->ipykernel->jupyter) (3.0.18)
Requirement already satisfied: parso<0.9.0,>=0.8.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jedi>=0.16->ipython>=5.0.0->ipykernel->jupyter) (0.8.1)
Requirement already satisfied: wcwidth in c:\users\saquib\appdata\roaming\python\python39\site-packages (from prompt-toolkit!=3.0.0,!=3.0.1,<3.1.0,>=2.0.0->ipython>=5.0.0->ipykernel->jupyter) (0.2.5)
Requirement already satisfied: ipython-genutils in c:\users\saquib\appdata\roaming\python\python39\site-packages (from traitlets>=4.1.0->ipykernel->jupyter) (0.2.0)
Requirement already satisfied: widgetsnbextension~=3.5.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipywidgets->jupyter) (3.5.1)
Requirement already satisfied: jupyterlab-widgets>=1.0.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipywidgets->jupyter) (1.0.0)
Requirement already satisfied: nbformat>=4.2.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from ipywidgets->jupyter) (5.1.2)
Requirement already satisfied: jsonschema!=2.5.0,>=2.4 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbformat>=4.2.0->ipywidgets->jupyter) (3.2.0)
Requirement already satisfied: jupyter-core in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbformat>=4.2.0->ipywidgets->jupyter) (4.7.1)
Requirement already satisfied: six>=1.11.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jsonschema!=2.5.0,>=2.4->nbformat>=4.2.0->ipywidgets->jupyter) (1.15.0)
Requirement already satisfied: attrs>=17.4.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jsonschema!=2.5.0,>=2.4->nbformat>=4.2.0->ipywidgets->jupyter) (20.3.0)
Requirement already satisfied: pyrsistent>=0.14.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jsonschema!=2.5.0,>=2.4->nbformat>=4.2.0->ipywidgets->jupyter) (0.17.3)
Requirement already satisfied: jinja2 in c:\program files\python39\lib\site-packages (from notebook->jupyter) (2.11.2)
Requirement already satisfied: pyzmq>=17 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from notebook->jupyter) (22.0.3)
Requirement already satisfied: Send2Trash>=1.5.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from notebook->jupyter) (1.5.0)
Requirement already satisfied: argon2-cffi in c:\users\saquib\appdata\roaming\python\python39\site-packages (from notebook->jupyter) (20.1.0)
Requirement already satisfied: terminado>=0.8.3 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from notebook->jupyter) (0.9.3)
Requirement already satisfied: prometheus-client in c:\users\saquib\appdata\roaming\python\python39\site-packages (from notebook->jupyter) (0.9.0)
Requirement already satisfied: python-dateutil>=2.1 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jupyter-client->ipykernel->jupyter) (2.8.1)
Requirement already satisfied: pywin32>=1.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from jupyter-core->nbformat>=4.2.0->ipywidgets->jupyter) (300)
Requirement already satisfied: pywinpty>=0.5 in c:\program files\python39\lib\site-packages (from terminado>=0.8.3->notebook->jupyter) (0.5.7)
Requirement already satisfied: cffi>=1.0.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from argon2-cffi->notebook->jupyter) (1.14.5)
Requirement already satisfied: pycparser in c:\users\saquib\appdata\roaming\python\python39\site-packages (from cffi>=1.0.0->argon2-cffi->notebook->jupyter) (2.20)
Requirement already satisfied: MarkupSafe>=0.23 in c:\program files\python39\lib\site-packages (from jinja2->notebook->jupyter) (1.1.1)
Requirement already satisfied: nbclient<0.6.0,>=0.5.0 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbconvert->jupyter) (0.5.3)
Requirement already satisfied: testpath in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbconvert->jupyter) (0.4.4)
Requirement already satisfied: defusedxml in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbconvert->jupyter) (0.7.1)
Requirement already satisfied: pandocfilters>=1.4.1 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbconvert->jupyter) (1.4.3)
Requirement already satisfied: entrypoints>=0.2.2 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbconvert->jupyter) (0.3)
Requirement already satisfied: jupyterlab-pygments in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbconvert->jupyter) (0.1.2)
Requirement already satisfied: mistune<2,>=0.8.1 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbconvert->jupyter) (0.8.4)
Requirement already satisfied: bleach in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbconvert->jupyter) (3.3.0)
Requirement already satisfied: nest-asyncio in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbclient<0.6.0,>=0.5.0->nbconvert->jupyter) (1.5.1)
Requirement already satisfied: async-generator in c:\users\saquib\appdata\roaming\python\python39\site-packages (from nbclient<0.6.0,>=0.5.0->nbconvert->jupyter) (1.10)
Requirement already satisfied: webencodings in c:\users\saquib\appdata\roaming\python\python39\site-packages (from bleach->nbconvert->jupyter) (0.5.1)
Requirement already satisfied: packaging in c:\users\saquib\appdata\roaming\python\python39\site-packages (from bleach->nbconvert->jupyter) (20.9)
Requirement already satisfied: pyparsing>=2.0.2 in c:\users\saquib\appdata\roaming\python\python39\site-packages (from packaging->bleach->nbconvert->jupyter) (2.4.7)
Requirement already satisfied: qtpy in c:\users\saquib\appdata\roaming\python\python39\site-packages (from qtconsole->jupyter) (1.9.0)

 - PS C:\WINDOWS\system32> jupyter notebook

----------------------------------------

jupyter : The term 'jupyter' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the
path is correct and try again.
At line:1 char:1
+ jupyter notebook
+ ~~~~~~~
    + CategoryInfo          : ObjectNotFound: (jupyter:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

Answer 1

Try running this: python -m notebook

Or if it's Python 3 try: python3 -m notebook

I'm not sure if this is the solution, but I know this is the command for Windows to open Jupyter Notebook.