Let repetitive work run itself
Clean text, organize tables, and turn routine steps into a reusable script.
" HOPPY ""hoppy"
name.strip().lower()
100% free · No sign-up · No installation
Small steps. Real skills.Learn Python.
From your first line of code to your own little tools. Learn by doing, right in your browser.
playground.py
Preparing Python…
Loading...
OUTPUT
Hoppy is waiting for your first hello.
Change "Hoppy" to your name, then run the code.Ctrl / ⌘ + Enter
A little code. Everyday possibilities.
What will you use Python for?
From saving a little time to making a tool of your own.
Try the data cleaner
Find answers in your data
Summarize records, compare results, and let Python take care of the arithmetic.
[12, 18, 24]18.0
sum(values) / len(values)
Build ideas together with AI
Learn to read the code AI writes, change it, and check what actually happens.
An ideaA little tool
Read → change → run → check
Your next chapter is ready
Find your next step
01Available now
Hoppy's First Leap
Your first step into Python. By the end, you can read simple code and write your own small programs.
02Available now
The Architect
Learn how to turn scattered code into real programs. By the end, you'll break problems down better and write cleaner, more structured code.
03Early access
The Data Tinkerer
Focus on text, tables, and data handling. By the end, you can build useful little tools to clean, organize, and process information.
New to Python? Start with the first course. More learning paths are on the course tree.
HoppyQuant
Curious about AI and quant?
Learn quantitative research with AI, starting with understanding data.