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

My review of Claude's new Code Interpreter, released under a very confusing name - 9th September 2025
Recreating the Apollo AI adoption rate chart with GPT-5, Python and Pyodide - 9th September 2025
GPT-5 Thinking in ChatGPT (aka Research Goblin) is shockingly good at search - 6th September 2025

buffers 2 bytes 1 bytestrings 2 python 1188 python3 21 strings 5 unicode 29

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