Read
Theory explained in plain English — no jargon, no hand-waving. Concepts you actually understand, not just memorize.
learn.py
Read it. Run it. Break it. Fix it.
The method
Section titled “The method”Every chapter follows the same battle-tested loop:
Run
Every concept has a runnable example. See it in action before you write a single line yourself.
Practice
Exercises with real constraints. Fill in the stubs, make the tests green.
Verify
Tests prove your solution is correct — not just “looks right”. Red to green, that’s the goal.
Chapters
Section titled “Chapters”01 — Object Oriented Programming
Classes, inheritance, encapsulation, properties, magic methods, ABCs and dataclasses. Start →
02 — Functional Programming
map(), filter(), reduce(), functional toolkit, closures, immutability, functional iteration. Start
→
03 — Iterators and Generators
Coming soon.
07 — Concurrency and Parallelism
Threading, multiprocessing, async/await. Start →
09 — Memory management and Performance
Python. memory model, Garbage Collector, measuring performance. Start →