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
110
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
270
Satellite Data and Super-Resolution to enhance a Slope Soaring Simulator by Schalk Heunis
Avatar for Pycon ZA pyconza
0
190
"Should we just go home on the third Friday afternoon?" by Kim van Wyk
Avatar for Pycon ZA pyconza
0
140
"Dolosse: Distributed Physics Data Acquisition System" by Bertram Losper & Sehlabaka Qhobosheane
Avatar for Pycon ZA pyconza
0
190
Modern JavaScript for Python Developers by Cory Zue
Avatar for Pycon ZA pyconza
0
340
Making Art with Python by Kirk Kaiser
Avatar for Pycon ZA pyconza
0
250
"Posits: A proposed new floating point number format for ML" by Kevin Colville
Avatar for Pycon ZA pyconza
0
160
"Building a label printer using Python, Arduino, duct tape and paperclips" by Johan Beyers
Avatar for Pycon ZA pyconza
0
330
"Building a simple Telegram bot using Python, Flask and Heroku" by Billy Einkamerer
Avatar for Pycon ZA pyconza
0
220

Other Decks in Programming

See All in Programming
エンジニアにデザインハーネスを 〜デザインプロセスを規定するためのハーネス〜 / Design harness from an engineer's perspective
Avatar for r-kagaya rkaga
2
730
トークンをケチるな、設計しろ：GitHub Copilotを賢く使うコンテキスト戦略
Avatar for Ochtum ochtum
0
290
吝嗇家のためのAI活用 / AI development for miser - ChatGPT + Issue Driven Development
Avatar for philomagi tooppoo
0
170
IBM Bobを活用したレガシーアプリの最新化
Avatar for Akira Onishi (IBM) oniak3ibm
PRO
1
240
Signal Forms: Details & Live Coding @enterJS 2026 in Mannheim
Avatar for Manfred Steyer manfredsteyer
PRO
0
220
コーディングルールの鮮度を保ちたい for SRE NEXT 2026 / keep-fresh-go-internal-conventions-sre-next-2026
Avatar for NAGATA Hiroaki handlename
0
110
Language Server 使ってる？ 〜VSCode と Zed の場合〜 / Are you using a Language Server? ~For VS Code and Zed~
Avatar for NAGATA Hiroaki handlename
0
830
ADKを使って簡単にAIエージェントを作ってみよう
Avatar for K1mu21 k1mu21
0
290
はてなアカウント基盤 State of the Union
Avatar for cockscomb cockscomb
1
1.3k
例外の正しい扱い方 そのエラー try-catchして大丈夫？
Avatar for Watanabe Jin jinwatanabe
0
330
これからAgentCoreを触る方へ トレンドはGatewayです
Avatar for Har1101 har1101
6
470
LLM本来の能力を解き放つサンドボックス技術とAI民主化への適用
Avatar for Yuku Kotani yukukotani
3
4.8k

Featured

See All Featured
世界の人気アプリ100個を分析して見えたペイウォール設計の心得
Avatar for Akihiro Kokubo akihiro_kokubo
PRO
72
40k
What the history of the web can teach us about the future of AI
Avatar for Ines Montani inesmontani
PRO
1
630
Intergalactic Javascript Robots from Outer Space
Avatar for Vicent Martí tanoku
273
27k
A Modern Web Designer's Workflow
Avatar for Chris Coyier chriscoyier
698
190k
brightonSEO & MeasureFest 2025 - Christian Goodrich - Winning strategies for Black Friday CRO & PPC
Avatar for Christian Goodrich cargoodrich
3
750
Effective software design: The role of men in debugging patriarchy in IT @ Voxxed Days AMS
Avatar for Kenny Baas-Schwegler baasie
0
440
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
659
62k
The Illustrated Children's Guide to Kubernetes
Avatar for Chris Short chrisshort
51
52k
BBQ
Avatar for Matthew Crist matthewcrist
89
10k
It's Worth the Effort
Avatar for 3n 3n
188
29k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
Avatar for Addy Osmani addyosmani
10
1.2k
The Limits of Empathy - UXLibs8
Avatar for Cassini Nazir cassininazir
1
390

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!