Py is an education app for iOS and Android that teaches topics like app development, building websites, and data science. They launched their Android app this week.

You can download the app and learn more on:
Hacker NewsLaunch HN: Py (YC S17) – Learn to Code on the Go
Product HuntPy 2.0: Learn to code on the go 📱
TechCrunchYC-backed Py is a Duolingo style learn-to-code app