Async/Await & Concurrency

Day 19 of Python for AI Engineering, and the start of Module 7. When your program spends its time waiting — for APIs, downloads, or an LLM to respond — async lets it do those waits all at once. Learn async/await, coroutines, and asyncio.gather, and measure a 3x speedup. The key to fast LLM, RAG, and agent applications.