Python Asyncio

asyncio

While doing Python’s Websockets tutorial, I encountered asyncio library and used async/await for the tutorial code.

asyncio is a Python library used to write concurrent code using async/await syntax.

• Single-threaded & single-process design
• It uses cooperative multitasking
• A style of concurrent programming but not parallelism (more closely aligned with threading)
• Related concepts: callbacks, events, transports, protocols, futures

Coroutine

• A specialized version of a Python generator function that can suspend its execution before reaching return and that can indirectly pass control to another coroutine for some time

References

• Python’s asyncio docs
• Async IO in Python: A Complete Walkthrough