Code, results and explanations in one place.
Direct answer
A Jupyter Notebook is a document made of cells. Code cells run Python and show results below, while text cells hold explanations. It is the standard tool for exploring data and sharing analysis. Install with pip, start it from the terminal and run cells with Shift+Enter.
Install and start
pip install notebook
jupyter notebook
Using it
- Shift+Enter runs a cell.
- Markdown cells hold headings and notes.
- Output appears under each code cell, including charts.
Good habits
- Restart and run all before sharing to check it works top to bottom.
- Keep cells small and focused.
- Give the notebook a clear title and sections.
- Do not store passwords or keys in notebooks.
Alternatives
JupyterLab, hosted notebooks and editors with notebook support.
Where Teyro fits
Teyro's Data Science for Beginners course turns this into short lessons you can play in a few minutes a day. It has 50 lessons, and you can start free.
The bottom line
A friendly place to learn and explore. Clean it up before you share it.



