.. _session_2_09:

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Session 9: Concurrency & Async Programming
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* Concurrency
* Threading and Multiprocessing
* Message Queues
* Coroutines
* Async


Reading
=======

:ref:`concurrency`

:ref:`threading`

:ref:`async`


Supplemental Readings
=====================

*Fluent Python:*

 - Ch. 16: Coroutines
 - Ch. 17: Concurrency with Futures
 - Ch. 18: Concurrency with asyncio

Threading
---------

"Grok the GIL":

https://emptysqua.re/blog/grok-the-gil-fast-thread-safe-python/ or the PyCon

PyCon Talk:

https://www.youtube.com/watch?time_continue=150&v=7SSYhuk5hmc

Multiprocessing
---------------

Async:
------

https://glyph.twistedmatrix.com/2014/02/unyielding.html

The build in ``asyncio`` suffers from a lot of legacy -- for a new take, try:

https://github.com/python-trio/trio

(This is also one of the few places to see async discussed without any pre- 3.5 legacy...)


Exercises
=========

:ref:`exercise_downloader`