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Put a UI on it with Streamlit

After this lesson you can: Turn a script into an app someone can click.

First: Build a document Q&A app

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Notes

Streamlit is a way to wrap a Python script in a simple web interface without building a separate frontend. Instead of writing HTML, CSS, JavaScript, routes, and state management, you write Python commands like “show this text,” “draw this chart,” “make this input box,” and “run this function when the value changes.” For an engineer with a working script, the main shift is thinking of the script as something that reruns top to bottom whenever the user interacts with it.

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