Follow the documentation here. https://www.python.org/downloads/ Make sure you install python3.7 or greater.
If pip is not installed follow these instructions. https://pip.pypa.io/en/stable/installing/
python3 -m pip install --upgrade pip
python3 -m pip install jupyter
Full instructions can be found here: http://jupyter.org/install
https://git.1248.nz/python/Introduction/archive/master.zip
git clone https://git.1248.nz/python/Introduction.git
You can either use the run.bat for Windows or run.sh for Linux/Mac.
Or you can run
jupyter notebook --NotebookApp.token=''
Then go to http://localhost:8888/notebooks/01.intro.ipynb in your browser.