asyncio Recipes: A Problem-Solution Approach

© Mohamed Mustapha Tahrioui 2019

M. M. Tahriouiasyncio Recipeshttps://doi.org/10.1007/978-1-4842-4401-2_2

2. Working with Event Loops

Mohamed Mustapha Tahrioui¹ 

(1)

Darmstadt, Hessen, Germany

 

Python version 3.4 has adopted a powerful framework to support concurrent execution of code: asyncio. This framework uses event loops to orchestrate the callbacks and asynchronous tasks. Event loops live in the context of event loop policies—a concept singular to asyncio. The interplay among coroutines, event loops, and policies is illustrated in Figure 2-1.

Figure 2-1

Coroutines, event loops, and policies

Coroutines can be thought of as functions you can “pause” ...