Course

RAG in Python: Build Every Step, Watch It Run

Rebuild a RAG script one step at a time in plain Python and watch every line run. Ana Ruiz needs a helper that answers her club members from a six-note handbook, and you build it with her. Later you swap in real embeddings and build a helper on notes of your own.

Level: Intermediate
Duration: 3.5 hours
Type: Interactive
Language: English

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Course Content

1.1 Reading a RAG script step-by-step
1.2 Watching a RAG helper run

2.1 Counting words into numbers
2.2 Scoring how close texts are

3.1 Storing notes with their numbers
3.2 Finding the closest notes
3.3 Why the search picks wrong

4.1 Handing the notes to the model
4.2 Saying the handbook has no answer

5.1 Real embeddings from a model
5.2 Running rag.py on the handbook

6.1 Your own helper

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Frequently asked questions

You can start RAG in Python: Build Every Step, Watch It Run with a 7-day free trial. Click "Enroll for FREE" to begin.

About 3.5 hours, across 12 lessons.

RAG in Python: Build Every Step, Watch It Run is an intermediate course. Prerequisites: Writing short Python functions with lists, dictionaries and loops.

Everything runs in your browser, so you can start without an API key or any installs.

RAG in Python: Build Every Step, Watch It Run

Course Content

Chapter 1: What a RAG script does

Chapter 2: Turning text into numbers

Chapter 3: Searching the store

Chapter 4: Handing notes to the model

Chapter 5: Swapping in the real tools

Chapter 6: Your own helper

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Frequently asked questions

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