How to fix: zsh: command not found: jupyter

% jupyter

zsh: command not found: jupyter

This error typically indicates that Jupyter Notebook is not installed on your Mac. To install it, you can use the following command:

pip3 install notebook

Verifying Jupyter Installation

If you believe Jupyter Notebook is already installed, the first step is to confirm its installation location on your Mac.

 % pip3 show notebook
Name: notebook
Version: 6.5.4
Summary: A web-based notebook environment for interactive computing
Home-page: http://jupyter.org
Author: Jupyter Development Team
Author-email: jupyter@googlegroups.com
License: BSD
Location: /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages
....

If you encounter a warning indicating that the package is not found, you can also use the whereis or which commands to locate Jupyter.

% whereis jupyter

jupyter: /Library/Frameworks/Python.framework/Versions/3.11/bin/jupyter

% which jupyter

/Library/Frameworks/Python.framework/Versions/3.11/bin/jupyter

In this case, ensure that the directory /Library/Frameworks/Python.framework/Versions/3.11/bin/ is included in your $PATH variable.

export PATH="/Library/Frameworks/Python.framework/Versions/3.11/bin:$PATH"

After updating your PATH, you can verify the installation by running the jupyter command again.