Install JupyterLab or Notebook

Create or activate an environment, then install Jupyter into that environment. For a general Python environment:

python -m venv .venv
source .venv/bin/activate       # macOS/Linux
python -m pip install --upgrade pip
python -m pip install jupyterlab
python -m jupyter lab

Use the equivalent activation command on Windows. Conda users can install JupyterLab from the channel they use and then run jupyter lab after activating the environment.

The python -m pip form matters: it installs into the interpreter you will use to start Jupyter. Verify it with python -m jupyter --version. If a notebook needs a different Python project environment, install and register a kernel in that environment rather than relying on a global installation. Keep the environment definition or dependency list with the project, and never put API keys in a notebook that will be shared.

Sources

• Project Jupyter — install

• JupyterLab documentation