I had exactly the same problem when I installed Visual Studio Code and tried to run some Python code from a jupyter notebook on my fresh Ubuntu 18.04.

How I solved it:

1) Press Command+Shift+P to open a new command pallete

2) Type >Python: Select Intepreter to start jupyter notebook server

3) Open the notebook again

And it worked fine. Hope it works for you.

1. Press Command+Shift+P on mac, Ctrl+Shift+p on windows

2. Type Python: Select Interpreter to start Jupyterserver

3. It would show you a dropdown of python versions installed.

4. I chose python 3.7.5 and it worked for me you can choose the python version installed on your machine.

I faced the same problem and this solved my problem https://www.reddit.com/r/vscode/comments/eq2bfv/vs_code_jupyter_server_no_kernel_python_not/ hope this helps

I tried the following:

1. Press Command + SHIFT + P
2. Type Python: Select Interpreter to start Jupyterserver

Hope this answer was helpful.

I have several versions of Python installed. It happened the same thing to me and I have fixed it this way. Ctrl+Shift+p and select Python: Select Interpreter to start Jupyter server

Then, select the version under the Visual Studio Code

Nothing will happen and then press again Ctrl+Shift+p and select Python: Create new blank Jupyter Notebook. And it works

I have even set the Python version to 3.8 at the bottom and it worked too with the new features print(a:=4) despite the fact that the version I have chosen was 3.7.5. Nevertheless, I have to lunch VS Code from Anaconda Navigator.

Making sure that in VS Code settings.json

"python.condaPath": "C:\\Program Files\\miniconda3\\Scripts\\conda.exe"

is pointing to the correct directory. It solved it for me.

I have seen all possible solutions but not work, finally I just upgrade jupyter,notebook,and jupyterlab,like pip3 install -U jupyterlab, and I can choose the kernel in VScode!

In my case, I had the server working in 3.7.6, but i wanted to use >3.8.0 versions too. After multiple attempts, which failed, I decided to:

1. Uninstall 3.8.5, and delete the folder in the installation directory.
2. Uninstall VSCode too.
3. Restart the PC, and re-install Python and VSCode. As a result, the Jupyter server initiated based on the latest version of Python automatically.

I hope this helps too! Cheers!

just fix this by add

"python.terminal.activateEnvironment": false,

to settings.json

hopes this help.

I installed anaconda and selected python kernal came with that as my interpreter (ctrl + shift + p) that solved my issue.

just had the same issue and it did not help to update the interpreter within vscode. What helped was: Check your dependencies within pip! It seems that new dependencies came up with the latest update of python, which are not installed. For me this was pygments:

jupyter-console 6.2.0 requires pygments, which is not installed.

Linux solution step-by-step:

xyz@xyz-pc-ubuntu:~$ pip3 check
qtconsole 4.7.6 requires pygments, which is not installed.
nbconvert 5.6.1 requires pygments, which is not installed.
jupyter-console 6.2.0 requires pygments, which is not installed.
ipython 7.18.1 requires pygments, which is not installed.

xyz@xyz-pc-ubuntu:~$ pip3 install pygments
Successfully installed pygments-2.7.2

Afterwards, jupyter found the updated python interpreter automatically.