Under the Hood of Python Asyncio: A Deep Dive into async/await

This article delves into the inner workings of Python's async/await concurrency model. Starting with the concepts of concurrency and parallelism, the author progressively demonstrates building a highly concurrent TCP server, comparing the pros and cons of using thread pools and I/O multiplexing. The core of the article lies in explaining how async/await is implemented based on generators, coroutines, and yield/yield from mechanisms. It meticulously details the underlying implementation of generators and coroutines, ultimately contrasting asyncio with other asynchronous programming libraries.