Simon Willison’s Weblog

How we rolled out one of the largest Python 3 migrations ever. “If you’re using Dropbox today, the application is powered by a Dropbox-customized variant of Python 3.5”

Posted 25th September 2018 at 11:02 pm

Recent articles

Claude can write complete Datasette plugins now - 8th October 2025
Vibe engineering - 7th October 2025
OpenAI DevDay 2025 live blog - 6th October 2025

python 1195 python3 21 dropbox 10

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe