Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Preparing for the great snakes migration by Hea...

Sponsored · SiteGround - Reliable hosting with speed, security, and support you can count on. →
Avatar for Pycon ZA Pycon ZA
October 09, 2020
Programming
98
0

Preparing for the great snakes migration by Heather Williams

A Lightning Talk at PyCon ZA 2020

Avatar for Pycon ZA

Pycon ZA

October 09, 2020

More Decks by Pycon ZA

See All by Pycon ZA
Trio: Structured Concurrency for Python by Jeremy Thurgood
Avatar for Pycon ZA pyconza
0
250
Satellite Data and Super-Resolution to enhance a Slope Soaring Simulator by Schalk Heunis
Avatar for Pycon ZA pyconza
0
170
"Should we just go home on the third Friday afternoon?" by Kim van Wyk
Avatar for Pycon ZA pyconza
0
130
"Dolosse: Distributed Physics Data Acquisition System" by Bertram Losper & Sehlabaka Qhobosheane
Avatar for Pycon ZA pyconza
0
170
Modern JavaScript for Python Developers by Cory Zue
Avatar for Pycon ZA pyconza
0
320
Making Art with Python by Kirk Kaiser
Avatar for Pycon ZA pyconza
0
230
"Posits: A proposed new floating point number format for ML" by Kevin Colville
Avatar for Pycon ZA pyconza
0
150
"Building a label printer using Python, Arduino, duct tape and paperclips" by Johan Beyers
Avatar for Pycon ZA pyconza
0
310
"Building a simple Telegram bot using Python, Flask and Heroku" by Billy Einkamerer
Avatar for Pycon ZA pyconza
0
200

Other Decks in Programming

See All in Programming
モダンOBSプラグイン開発
Avatar for Kaito Udagawa umireon
0
200
Radical Imagining - LIFT 2025-2027 Policy Agenda
Avatar for LIFT lift1998
0
230
20260320登壇資料
Avatar for 松井遼(まついはるか) pharct
0
160
AI-DLC 入門 〜AIコーディングの本質は「コード」ではなく「構造」〜 / Introduction to AI-DLC: The Essence of AI Coding Is Not “Code” but “Structure”
Avatar for shiro seike seike460
PRO
0
220
ネイティブアプリとWebフロントエンドのAPI通信ラッパーにおける共通化の勘所
Avatar for Suguru Ohki suguruooki
0
240
Migration to Signals, Signal Forms, Resource API, and NgRx Signal Store @Angular Days 03/2026 Munich
Avatar for Manfred Steyer manfredsteyer
PRO
0
230
我々はなぜ「層」を分けるのか〜「関心の分離」と「抽象化」で手に入れる変更に強いシンプルな設計〜 #phperkaigi / PHPerKaigi 2026
Avatar for shogogg shogogg
2
780
野球解説AI Agentを開発してみた - 2026/02/27 LayerX社内LT会資料
Avatar for Shinichi Nakagawa shinyorke
PRO
0
390
煩雑なSkills管理をSoC（関心の分離）により解決する――関心を分離し、プロンプトを部品として育てるためのOSSを作った話 / Solving Complex Skills Management Through SoC (Separation of Concerns)
Avatar for nrs nrslib
3
380
PHPで TLSのプロトコルを実装してみるをもう一度しゃべりたい
Avatar for higaki higaki_program
0
170
AI活用のコスパを最大化する方法
Avatar for Ochtum ochtum
0
370
アーキテクチャモダナイゼーションとは何か
Avatar for nwiizo nwiizo
12
2.8k

Featured

See All Featured
Keith and Marios Guide to Fast Websites
Avatar for Keith Pitt keithpitt
413
23k
Impact Scores and Hybrid Strategies: The future of link building
Avatar for Tamara Novitovic tamaranovitovic
0
250
How to Ace a Technical Interview
Avatar for Jacob Kaplan-Moss jacobian
281
24k
Lightning Talk: Beautiful Slides for Beginners
Avatar for Ines Montani inesmontani
PRO
1
500
[RailsConf 2023 Opening Keynote] The Magic of Rails
Avatar for Eileen M. Uchitelle eileencodes
31
10k
Jess Joyce - The Pitfalls of Following Frameworks
Avatar for Tech SEO Connect techseoconnect
PRO
1
120
State of Search Keynote: SEO is Dead Long Live SEO
Avatar for Ryan Jones ryanjones
0
170
Between Models and Reality
Avatar for mayunak mayunak
3
260
The AI Search Optimization Roadmap by Aleyda Solis
Avatar for Aleyda Solis aleyda
1
5.6k
Tell your own story through comics
Avatar for letsgokoyo letsgokoyo
1
880
Un-Boring Meetings
Avatar for Sebastian Deterding codingconduct
0
250
Heart Work Chapter 1 - Part 1
Avatar for Lake Fama lfama
PRO
5
35k

Transcript

  1. Great snakes migration Upgrading from python 2 to python 3

    By Heather Williams

  2. The Problem • A large codebase • Around 3 000

    python files used to generate questions on a website • Monolith disguised as microservices

  3. Solution: Walled gardens • Make the monolith a true monolith

    • Identify the real microservices • Docker all the things • Walled garden around the python files for questions

  4. Solution: automate it Python 2to3 is a great tool https://docs.python.org/3.0/library/2to3.html

  5. Solution: requirements files • Remove unnecessary dependencies • Upgrade out

    of date dependencies • Note what needs python 3 to upgrade

  6. Great snakes migration Take the plunge and do it!