Simon Willison reviews Python 3.15 and adopts Python 3.11 features
Hello Python 3.15, goodbye 3.10, and now I can use 3.11
What happened
Simon Willison reviews Python 3.15 and explains how Python 3.10’s end of support lets his open source projects adopt Python 3.11 features. Highlights include explicit lazy imports that address startup costs in his LLM CLI plugins, unpacking in comprehensions, and the Tachyon sampling profiler. He provides uv upgrade commands and identifies newly usable features such as tomllib, asyncio TaskGroup, and SQLite improvements, including removal of a Datasette compatibility workaround.
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