Simon Willison’s Weblog

9th October 2007 - Link Blog

String types in Python 3. bytes are now immutable (just like the bytestrings they are replacing) and a new mutable buffer type has been introduced.

Posted 9th October 2007 at 2:08 am

Recent articles

Live blog: Code w/ Claude 2026 - 6th May 2026
Vibe coding and agentic engineering are getting closer than I'd like - 6th May 2026
LLM 0.32a0 is a major backwards-compatible refactor - 29th April 2026

This is a link post by Simon Willison, posted on 9th October 2007.

buffers 2 bytes 1 bytestrings 2 python 1250 python3 21 strings 5 unicode 35

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