Book Image

Parallel Programming with Python

By : Jan Palach, Jan Palach V Cruz da Silva
Book Image

Parallel Programming with Python

By: Jan Palach, Jan Palach V Cruz da Silva

Overview of this book

Table of Contents (16 chapters)
Parallel Programming with Python
Credits
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
Index

Using asyncio


We can define asyncio as a module that came to reboot asynchronous programming in Python. The asyncio module allows the implementation of asynchronous programming using a combination of the following elements:

  • Event loop: This was already defined in the previous section. The asyncio module allows an event loop per process.

  • Coroutines: As mentioned in the official documentation of asyncio, "A coroutine is a generator that follows certain conventions." Its most interesting feature is that it can be suspended during execution to wait for external processing (some routine in I/O) and return from the point it had stopped when the external processing is done.

  • Futures: The asyncio module defines its own object Future. Futures represent a processing that has still not been accomplished.

  • Tasks: This is a subclass of asyncio.Future to encapsulate and manage coroutines.

Beyond these mechanisms, asyncio provides a series of other features for the developing of applications, such as transports...