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Module 05 — Async Python

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Prerequisites

  • Level 3 complete (you understand packages, error handling, project structure)
  • Comfortable with functions and classes

What you will learn

  • How async and await work under the hood
  • Running concurrent tasks with asyncio
  • Making concurrent HTTP requests with aiohttp
  • Async generators and file processing
  • Producer-consumer patterns with asyncio.Queue

Why async matters

Normal Python runs one thing at a time. When your code waits for a network response or a file read, it just sits there doing nothing. Async lets your code do other work while waiting. This is essential for web servers, scrapers, and anything that talks to external systems.

Install dependencies

cd projects/modules/05-async-python
python -m venv .venv
source .venv/bin/activate    # macOS/Linux
.venv\Scripts\activate       # Windows
pip install -r requirements.txt

Projects

# Project Focus
01 Async Basics async def, await, asyncio.run(), asyncio.sleep()
02 Concurrent Requests aiohttp, gather(), fetching multiple URLs at once
03 Async File Processing aiofiles, async generators, processing files concurrently
04 Producer-Consumer asyncio.Queue, task coordination, worker pools
05 Async Web Server async FastAPI endpoints, background tasks