Guide

Programming Basics

Learn to code from absolute zero — in Python.

The on-ramp for everything else: variables, control flow, functions, data structures, and debugging — taught from nothing, with runnable in-browser code. Finish here and you're ready to specialize.

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PythonFundamentalsBeginner

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What makes it worth your time

Assumes zero prior coding — teaches in Python with quiz-gated progression.
Runnable in-browser code challenges: write a function, run it against live tests.
The first rung of the ladder — learn to code → specialize → interview → prove.