Jupyter Notebook
ELI5 - The Vibe Check
A Jupyter Notebook is a document where code, its output, charts, and your own notes all live together in one scrollable page, so you can run one small chunk of code, see the result immediately, tweak it, and keep going, instead of rerunning an entire script from scratch every time. It's how most data science actually gets explored, one cell at a time, before any of it becomes real production code.
Real Talk
A Jupyter Notebook is an interactive computing environment that lets you write and execute code in individually runnable cells, interleaved with markdown text, visualizations, and cell output, all saved in a single .ipynb file. It's the standard tool for exploratory data analysis and prototyping in data science, though notebooks are notorious for hidden execution-order bugs and generally need real refactoring before the code they contain reaches production.
When You'll Hear This
"Prototype it in a notebook first, then we'll turn the working cells into an actual pipeline." / "This notebook only works if you run the cells in exactly this order, which is exactly the problem with notebooks."
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