This is due to a conflict with recent versions of Jupyter. The solution is to use the pre-release version of the Jupyter extension and set up a local server:

1. Install the pre-release version of Jupyter

2. Set up your virtual environment (in the terminal):

.venv\Scripts\activate

python -m pip install --upgrade pip

pip install ipykernel jupyter

3. Start the Jupyter server:

jupyter notebook --no-browser

Copy the full URL that appears (example: `http://localhost:8888/?token=abc123...`)

4. Connect VS Code to the server:

• Open your notebook

• Click on the kernel selector

• Select “Select Another Kernel...” → “Existing Jupyter Server...”

• Paste the full URL (with the token)

• Press Enter

• Select the Python interpreter: .venv\Scripts\python.exe

And it should work now :D

Translated with DeepL.com (free version)