You Don't Care About Efficiency

In this talk we’ll discuss why synchronous software is a problem, what your options are to move away from it, and what challenges are being faced by the Python ecosystem as we try to move towards a brave new asynchronous world.

Transcript

1. You Don’t Care About Efficiency
2. Hi
3. @lukasaoz @lukasa
5. Requests Core Contributor urllib3 Core Contributor Maintainer of 10+ others Hyper Maintainer
6. You Don’t Care About Efficiency
7. Synchronous Code is Dying
9. The Problem
10. Thesis: Synchronous Code is Hurting Software
12. Why Is Software Slow?
13. Responsiveness
14. Synchronous ≡ Inefficient
16. for url in urls: r = requests.get(url) do_stuff_with(r.content)
17. Why Are We Synchronous?
18. Easy Tools
19. How Do I Async?
20. is Problematic
21. is Awesome
22. from concurrent.futures import ThreadPoolExecutor def work(url): r = requests.get(url) do_stuff_with(r.content) with ThreadPoolExecutor(max_workers=10) as e: e.map(work, urls)
24. Costs • Unfamiliar paradigms • Framework lock-in • Hard to support multiple frameworks (+sync code).
25. Σ↑
26. Synchronous Code ≡ Gratuitous Waste
27. Asynchronous Code ≡ Beautiful Happiness
29. Bonus: A Bold Prediction
30. Thanks! ✨✨