FREE LESSONS · PRACTICAL SKILLS

Free Python and AI learning resources

Make your first Python program, test your reasoning and build something you can explain. These free lessons are available now. Lumio's app-based missions are still being prepared.

Choose a practical starting point

Start with a short project, not a giant course. Every guide here includes a next action and explanations you can use with a regular Python 3 interpreter. You do not need a credit card, an AI API, or previous programming experience to begin.

PYTHON DECISIONS · FIVE VERIFIED CASES

Learn if, elif and else in Python

Make decisions with conditions, build a study-plan adviser and practice five worked exercises.

Learn Python conditionals ↗PYTHON FOUNDATIONS · RUNNABLE EXAMPLES

For and while loops explained

Repeat tasks, count study minutes and solve four practice problems with answers.

Learn Python loops ↗PYTHON FOUNDATIONS · WORKED EXERCISES

Functions, parameters and return values

Write reusable code and build a small progress calculator, then check your solutions.

Learn Python functions ↗AI ENGINEERING FROM ZERO · 2026

Start AI engineering from scratch

A realistic starter sequence, first Python project, and practical checkpoints.

Read the beginner guide ↗YOUR FIRST PROGRAM

Start from zero

Write your first Python project and learn how to debug it.

Explore the guide ↗SEVEN DAY PLAN · FREE

Python for AI in 7 sessions

Follow short code lessons and finish a tested mini document retriever.

Start the 7-day practice plan ↗PRACTICE

10 exercises with answers

Check your reasoning against worked solutions.

Explore the guide ↗BUILD

Your first Python chatbot

A working, tested rules-based FAQ assistant.

Explore the guide ↗EXPLORE

Four project ideas

Choose achievable learning challenges.

Explore the guide ↗INTRO TO RAG · HANDS-ON

Build a tiny Python retriever

Run document search and learn what a complete RAG app needs.

Try the retrieval tutorial ↗PLAN

The AI engineering roadmap

Grow from beginner Python to production AI.

Explore the guide ↗

CHOOSE YOUR LEARNING PATH

What should you learn first?

Choose the path that matches what you can do today. Everything linked below is free to read right now; the Lumio mobile app itself remains in development.

Prefer a day-by-day path? Follow a free 7-day Python for AI practice plan with a testable mini-project.

Not sure where to begin? Follow the complete free AI engineering from scratch guide, then choose a beginner project with a realistic time estimate.

I have never written code

Start with printing text, variables and arithmetic. Spend roughly 20 minutes on a working example, then see if you can change it without copying.

Follow the first Python lesson ↗

I understand the basics

Practice conditions, loops, dictionaries and functions with short challenges. Try before expanding the worked answers; identify one error you corrected.

Learn Python if, elif and else ↗ · Practice 10 beginner exercises ↗

I want a small portfolio project

Build a rule-based Python chatbot with executable tests. It is not a trained language model, but it teaches the control flow used around real AI systems.

Build and test the FAQ chatbot ↗

I want to become an AI engineer

Map a path through Python, data, ML, LLM apps, retrieval, evaluation and deployment. Pick a project for each stage instead of collecting tutorials without building.

See the complete AI engineering roadmap ↗

How should you progress?

Run a small Python program and predict every output line.
Practice with exercises, tests and errors until the language feels familiar.
Build the chatbot and explain why its exact-match rules are not an AI model.
Use the AI roadmap to learn data, machine learning, LLM apps, evaluation and production engineering.

What should you keep for your portfolio?

Save your project source code, a short README with setup instructions, expected output and at least one limitation. Explaining a real test or corrected bug is more meaningful than copying a polished demo. These exercises are educational guides, not promises of qualifications or employment.

Explore Lumio's planned world-based curriculum, or join the early-access waitlist to hear about launch. Joining does not give immediate app access.