Gain insights into Python's scalability, concurrency, and distribution. Learn about CPU scaling, event loops, queue-based distribution, and building REST APIs to optimize and deploy high-performance applications.

python.tar.gz

Chapter2

Chapter7

Chapter5

Chapter6

Chapter3

Chapter7-without-etcd

Chapter8-with-etcd

Chapter9

Chapter9-gabbi

Chapter10-heroku

Chapter10-aws_eb

Chapter11_Tox_integration

Chapter11_Tox_integration-pifpaf

Chapter11_pifpaf_fixtures

Chapter12_caching

Chapter13_Performance

Chapter13_Performace_KCacheGrind

Chapter5-rq-dashboard

Chapter5-celery-flower

Chapter10-gcloud

Chapter2-zsh

Chapter13_Performace_KCacheGrind-copy

Chapter11_Tox_integration-pifpaf-postgresql

Celery-Project1_Sol

Celery-Project1_Sol2

Python, in all of its greatness, is often dismissed when needing to write performant and distributed applications. It’s considered to be slow and not suited for the task. In this course, you will find that with the right implementation of Python, you can write applications that scale horizontally, perform well, and are distributed. 

To kick things off, you’ll learn about CPU scaling, concurrency, and event loops, all of which are crucial for implementing a distributed system. After that, you’ll move on to queue-based distribution, lock management, and group memberships, which are fundamental concepts for maintaining availability and consistency in distributed applications.

In the last half, you’ll learn how to build a REST API, how to deploy your app to a PaaS, and how to optimize your application's performance.

By the end of this course, you’ll be more productive with Python, you’ll be able to write faster applications that are distributed, and you’ll have a great new skill that is highly coveted.

The Hacker's Guide to Scaling Python

### Asking an expert

> Following is a conversation with experienced Python developer **Naoki Inada** on the `asyncio` library.

| **Q: Hey Naoki! Could you introduce yourself and explain how you came to Python?**|
|:---|
|**A:** Hi! I have been a core Python developer since 2016. I implemented the ["compact ordered dict" feature in Python 3.6](https://docs.python.org/3/whatsnew/3.6.html#whatsnew36-compactdict), which makes the ordered dictionary smaller in memory. I work on real-time online game servers at [KLab Inc](http://www.klab.com/jp/english/). Thanks to my job, I can use most of my paid-time to work on open-source software, including CPython. 
| When I was a student, I did not like scripting languages like Python. I was way more into C++. I studied Perl and bash, but features like implicit type conversion between string and integer drew me away. 
| After graduation, my first job was to develop the firmware of a digital still camera. C was the primary language used there, though using C made me spend way too much time on very simple tasks. 
| For example, analyzing and visualizing log data written in a custom format would require writing tons of long and tedious C code. Therefore, I looked into scripting languages to improve my productivity. I stumbled upon IPython and found it very good for analytical tasks. And writing Python is way better than writing Windows `.bat` files!

Get an expert opinion on the concepts you learned in this chapter.

Naoki Inada on asyncio

Scaling

CPU Scaling

Event Loops

Functional Programming

Queue-Based Distribution

Designing for Failure

Create a Web Crawler

Project Walkthrough

Lock Management

Group Membership

REST Interfaces

Deploying on PaaS

Testing Distributed Systems

Caching

Performance

Conclusion

Naoki Inada on asyncio

Asking an expert