Simon Willison’s Weblog

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

OpenAI's new open weight (Apache 2) models are really good - 5th August 2025
ChatGPT agent's user-agent - 4th August 2025
The ChatGPT sharing dialog demonstrates how difficult it is to design privacy preferences - 3rd August 2025

buffers 2 bytes 1 bytestrings 2 python 1170 python3 21 strings 5 unicode 29

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