A GUI-based Python learning app that grows with you — from a child typing
their very first print("Hello!") to an experienced developer keeping
their skills sharp. One offline app, no accounts, no cloud, nothing to
sign up for.
- Kids learning Python for the first time — a guided, game-like path through the basics, with encouragement, rewards, and friendly error messages instead of intimidating stack traces.
- Anyone brushing up or going deeper — hundreds of bite-sized practice levels across every core topic, mini-games, and a quiz bank to test yourself.
- Experienced programmers — the Advanced Code Crackers category is built specifically for people who already know how to code and want to keep their instincts fast: real-world Python gotchas (closures, mutable defaults, floating-point precision, aliasing vs. copying, and more) to debug, not tutorials to sit through.
Screenshots below are from an earlier build and don't yet reflect the current Learning Hub landing screen, updated level counts, or the newer Settings font controls — due for a refresh.
Dashboard
Practice by Category
Lesson: Meet Python
Settings
- Today's Mission — a guided daily path that starts with the basics and works through Numbers, Addition, Subtraction, Multiplication, Division, Variables, Strings, Input, Decisions, Loops, Functions, and Lists a level at a time, looping back around for deeper levels as you go.
- Python Learning course — a structured 7-chapter course (Intro & Setup, Variables & Data Types, Data Structures, Advanced Programming Concepts, Standard Library Deep Dive, Concurrency & Observability, Capstone: To-Do App) that deliberately covers ground the fundamentals path below doesn't rather than re-teaching it: variables, numbers, strings, conditionals, loops, functions, and basic lists already get much deeper, more gradually-paced coverage in Today's Mission's fundamentals categories, so this course focuses on what's genuinely additive — Intro & Setup covers Print, Comments, and Reading Errors; Variables & Data Types covers Booleans and Type Conversion; Data Structures covers Tuples, Dictionaries, and Sets; Advanced Programming Concepts covers Algorithms, Recursion, and Functional Programming; Standard Library Deep Dive covers Collections, Itertools, Datetime, and JSON; and Concurrency & Observability covers Concurrency & Async, Thread Scheduling, Sync vs Async, and Observability — taught as simulated, concept-only exercises rather than real threading/asyncio, since this app's sandbox hard-kills code after a timeout and doesn't compose safely with real concurrency. Every topic still gets its own "What is it?" explanation, a hands-on sample program, and a topic quiz — 60 lessons in all.
- AI & Machine Learning course — a second, standalone 3-chapter course (AI Foundations, Machine Learning & Tools, Advanced AI Concepts) with its own dashboard, parallel to Python Learning, deliberately ordered low-to-high level. AI Foundations (beginner) covers What is AI?, Rule-Based Decisions (including a simulated rule-based chatbot exercise), and Types of AI (narrow vs. general); Machine Learning & Tools (intermediate) covers What is Machine Learning? (with a "Train the Robot" pattern-matching mini-game) and What is MCP?; Advanced AI Concepts covers Neural Networks and a deeper MCP Framework topic (tools, resources, and prompts as the three request kinds). Every concept is taught through plain-Python simulation — dictionaries, if/elif chains — since the sandbox has no real AI/ML libraries. 21 lessons in all.
- Practice by Category — jump into any topic directly and work through its full 20-level progression at your own pace, independent of Today's Mission.
- Code Crackers — 40 short "find the bug and fix it" puzzles covering common beginner mistakes: typos, off-by-one errors, wrong comparisons, bad indentation, and more.
- Advanced Code Crackers — 15 tougher puzzles for people who already know Python, covering the kind of subtle bugs that trip up even experienced developers. A great way to refresh your memory in a few minutes rather than starting a whole new project.
- Mini-games and projects — Guess the Number, Rock-Paper-Scissors, the Snake project (build a real game step by step), Creative Arts, RPG Quests, Arcade Lab, and Robot Adventure.
- Quiz — a 336-question multiple-choice quiz covering the whole curriculum, reshuffled every time you play, with your best score tracked.
- Practice Quest — if you get stuck on the same lesson a few times in a row, the app gently suggests related practice to help instead of leaving you stuck.
- Rewards that actually mean something — stars, badges, player levels, and day streaks — plus, in the mobile (Flet) app, a Daily Treasure chest, three daily quests with a completion bonus, a once-a-day welcome-back moment, a growing streak flame with streak shields that forgive one missed day, Codey acting out what your program printed, skill-based stars (replay without hints to earn the missing star), a same-session combo that doubles XP, player titles that dress up Codey the mascot, a closet of outfits to buy for him with stars, an offline weekly league of Codey's friends (parents can turn it off), map Worlds with their own champion badges, and confetti-and-level-up celebrations when a lesson is passed, so coming back tomorrow is its own small reward.
- A Settings screen that's actually comfortable to use — multiple color themes (including dark mode), adjustable font size and font style so text is easy to read on anything from a phone to a desktop monitor, a sound toggle, and export/import so progress can be backed up to (or restored from) a JSON file — importing always asks for confirmation first, since it replaces all current progress.
- A Parent Area — a summary of progress, recent activity, a way to rename your child's profile, and a way to reset progress if needed.
- 100% offline and private — everything runs and stays on your device. No accounts, no network access, no data collection.
Easiest way (no terminal needed): double-click run.bat (Windows) or
run ./run.sh (git-bash/macOS/Linux). The first run takes a minute to set
itself up; every run after that launches straight into the app.
First launch walks you through a short setup — just a name — and lands you on the Learning Hub, ready to go.
- docs/DEVELOPMENT.md — project layout, how each subsystem works, running it/testing it.
- docs/ARCHITECTURE.md — system context, class diagrams, sequence diagrams, the persistence model, and the design decisions behind them.