Asyncio is a powerful library in Python designed for writing concurrent code using asynchronous programming. It was introduced in Python 3.4 and provides a framework that revolves around the event loop, which is responsible for managing I/O operations and system events. This allows developers to run code concurrently without the need for multiple threads, making it efficient for tasks like web scraping, chatbots, and other applications that require handling multiple activities simultaneously ¹³⁵.

The core of Asyncio is based on the use of coroutines, which are special functions that can pause and resume their execution. This is achieved through the async/await syntax, allowing for a more readable and manageable way to write asynchronous code. Asyncio also includes features like tasks and futures, which help in managing the execution of coroutines and handling their results ²⁵.

Overall, Asyncio enhances performance and scalability in Python applications by enabling non-blocking operations, making it a valuable tool for developers looking to improve the efficiency of their code.