Python Concurrency with asyncio

7 Handling blockingwork with threads

This chapter covers

• Reviewing the multithreading library
• Creating thread pools to handle blocking I/O
• Using async and await to manage threads
• Handling blocking I/O libraries with thread pools
• Handling shared data and locking with threads
• Handling CPU-bound work in threads

When developing a new I/O-bound application from scratch, asyncio may be a natural technology choice. From the beginning, you’ll be able to use non-blocking libraries that work with asyncio, such as asyncpg and aiohttp, as you begin development. However, greenfields (a project lacking constraints imposed by prior work) development is a luxury that many software developers don’t have. A large portion of our work may be managing existing ...