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Build a Chatbot in Python From Scratch: No API Keys, No AI Libraries

This story is from 2026-10-13. It is preserved in the archive; the latest stories are on the live feed.

Most "build a chatbot" tutorials are really "call someone else's API" tutorials. This one isn't. We build Nova , a small chatbot that learns from examples, using only Python's standard library for the AI part, plus FastAPI to serve it to a web chat page. No API key, no paid service, no model downlo…

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  1. 2026-10-13 13:52 · DEV Community — Machine Learning
    Build a Chatbot in Python From Scratch: No API Keys, No AI Libraries

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