Building a Micro Asynchronous Event Loop Library from Scratch

2025-02-28
Building a Micro Asynchronous Event Loop Library from Scratch

This project implements a minimal, yet feature-complete asynchronous event loop library from scratch for educational purposes. It demonstrates core asynchronous programming concepts: task scheduling and management, I/O multiplexing with non-blocking sockets, timeouts and sleep functionality, task cancellation, and coroutine-based concurrency. The library uses Python's generator-based coroutines and the `select` module for I/O multiplexing, providing a simplified model of how modern async frameworks like `asyncio` work internally. Learn the magic behind `await`, how `yield from` functions, and how coroutines communicate with the event loop.