Mapping SQLite Result Columns Back to Their Source table.column
Simon Willison's Weblog7 hours agoTutorialSimon Willison explored how to programmatically map SQLite query result columns back to their source table and column names — a capability that would let Datasette enrich query results with contextual metadata. He tasked Claude Code (Opus 4.8) with finding solutions, which surfaced three approaches: using the apsw library, calling SQLite's sqlite3_column_table_name() C function via Python ctypes, and parsing EXPLAIN bytecode output. The research is published as a GitHub README and covers the tradeoffs of each technique.
asyncinject 0.7 Released After Claude Fable 5 Bug Fixes
Simon Willison's Weblog3 days agoReleaseSimon Willison announced asyncinject 0.7, a release of his Python utility library for an asyncio dependency injection pattern. He originally built the library a few years ago and has used it with Datasette. The notable angle is that Claude Fable 5 spotted bugs in the dependency and fixed them, which Willison describes as unusually proactive behavior.
Apache Burr: Open-Source State Machine Framework for Building Reliable AI Agents
Hacker News (AI keywords)4 days agoNew ToolApache Burr provides a state-machine-based architecture for building reliable AI agents, making complex multi-step LLM workflows predictable and testable. It includes built-in tracing, observability, and a local visualization UI, allowing developers to replay and debug agent execution step by step. Model-agnostic and integrable with LangChain, LlamaIndex, and major LLM providers, it also supports state persistence and human-in-the-loop workflows for production use.
Introduction – Rust for Python Programmers
Hacker News (AI keywords)8 days agoTutorialThis Hacker News item points to an introductory page for “Rust for Python Programmers” on Microsoft GitHub Pages. Based only on the title, it appears to be a learning resource designed to help Python developers approach Rust. No source content was provided, so details about chapters, examples, or coverage cannot be confirmed.
micropython-wasm 0.1a2
Simon Willison's Weblog8 days agoReleaseSimon Willison released micropython-wasm 0.1a2, with the main change being a new CLI. The CLI was added from issue #7 and was inspired while drafting a related post about MicroPython in a sandbox. Its purpose is to make the post's “Try it yourself” section easier to demonstrate and follow, especially for readers experimenting with Python, WebAssembly, and sandboxing.
Running Python code in a sandbox with MicroPython and WASM
Simon Willison's Weblog8 days agoNew ToolSimon Willison describes his latest attempt to safely run Python plugin-style code inside his own applications. The alpha package micropython-wasm uses MicroPython compiled to WebAssembly, executed through the maintained wasmtime Python library. His goals include clean PyPI installation, CPU and memory limits, controlled file and network access, host functions, and reliable documentation.
datasette-agent-micropython 0.1a0
Simon Willison's Weblog11 days agoReleaseSimon Willison released datasette-agent-micropython 0.1a0, an alpha aimed at letting Datasette Agent generate and execute Python safely. The project focuses on sandboxing, with MicroPython and WebAssembly-related techniques suggested by the tags. Willison says the early results look promising and that GPT-5.5 has not yet escaped the sandbox, though this remains an early alpha.
micropython-wasm 0.1a1
Simon Willison's Weblog11 days agoReleaseSimon Willison released micropython-wasm 0.1a1, a small update connected to Python, sandboxing, and WebAssembly. The release fixes limitations that appeared while he was trying to use it to build datasette-agent-micropython. The post does not list detailed changes, so this should be read as an early usability and compatibility improvement rather than a major feature launch.
micropython-wasm 0.1a0
Simon Willison's Weblog12 days agoReleaseSimon Willison released micropython-wasm 0.1a0, an alpha package described as his latest sandboxing experiment. It bundles a lightly customized WASM build of MicroPython with a wrapper for executing code through wasmtime. The post is brief, but relevant to developers tracking Python sandboxing, WebAssembly runtimes, and controlled execution environments.
Running Python ASGI Apps in the Browser via Pyodide + a Service Worker
Simon Willison's Weblog14 days agoTutorialSimon Willison demonstrates an experiment for running Python ASGI apps entirely in the browser using Pyodide and a Service Worker. The approach addresses a Datasette Lite limitation: HTML returned through intercepted navigation did not execute script tags, breaking features and plugins. Claude Opus 4.8, used through Claude Code for web, helped explore the implementation. Basic ASGI and Datasette 1.0a31 demos are available.
datasette-fixtures 0.1a0 Released
Simon Willison's Weblog20 days agoReleaseSimon Willison announced the release of datasette-fixtures 0.1a0, a new plugin designed to simplify plugin testing. It utilizes the new `datasette.fixtures.populate_fixture_database(conn)` helper introduced in Datasette 1.0a30. Developers can quickly test this functionality using `uvx` to generate mock database tables and retrieve sample JSON data without a full manual installation.
pydantic-monty investigation
Simon Willison's Weblog22 days agoCommentarySimon Willison revisited pydantic-monty, a sandboxed subset of Python implemented in Rust. He asked Claude Code to inspect the most recent release, following his earlier exploration a few months ago. The key finding is that limits for execution duration, memory, allocations, and recursion depth all appear to behave as advertised.
OpenClaw 專案命名演變史：從 Warelay 到 OpenClaw 的 Git 歷史軌跡
Simon Willison's Weblog28 days agoCommentaryWhile preparing a lightning talk for PyCon US 2026, well-known developer Simon Willison became curious about how many times the open-source project OpenClaw…
datasette-agent 0.1a2 發布：引入工具權限控制提升 AI 代理安全性
Simon Willison's Weblog30 days agoReleaseSimon Willison, the founder of the open-source data analysis tool Datasette, recently released the latest alpha version of the AI agent plugin datasette-agent…
Vercel 推出零配置 Django 支援，簡化 Python 後端部署流程★ 70
Vercel Changelog66 days agoReleaseVercel, the go-to platform for frontend and serverless deployment, recently announced a major update in its Changelog: official support for…
Hugging Face 推出 Modular Diffusers：為擴散模型管線打造的可組合模組化積木★ 78
Hugging Face Blog101 days agoReleaseThe Hugging Face official blog has announced the launch of "Modular Diffusers" — a major architectural overhaul of its widely popular `diffusers` library. In…
Vercel 提升 Python 型別支援：為 Serverless 帶來更強大的型別安全
Vercel Changelog104 days agoReleaseVercel recently completed a major upgrade to its Python support on the platform, focusing on "Advancing Python typing." In the past, Vercel's primary strengths…
Vercel 提升 Python Functions 打包大小限制至 500MB★ 75
Vercel Changelog110 days agoReleaseThe official Vercel Changelog announces that the bundle size limit for Python Vercel Functions (serverless functions) has been significantly raised to 500MB…
Vercel 正式支援 Python 3.13 與 3.14 版本
Vercel Changelog132 days agoReleaseVercel published an update on February 2, 2026, announcing that its platform — particularly the Serverless Functions runtime environment — now officially…
Vercel 正式支援 FastAPI Lifespan 生命週期事件
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Vercel 宣布投資 Python 生態系：加強 Serverless 支援與 PSF 贊助，助攻 AI 應用開發★ 70
Vercel Changelog194 days agoReleaseWith the explosion of generative AI applications, modern web development has increasingly converged on a golden combination: Next.js (React) on the frontend…
Vercel 正式支援 FastAPI 與 Flask 的自訂建置指令 (Build Commands)
Vercel Changelog209 days agoReleaseThe well-known cloud deployment platform Vercel has announced an important update for Python developers: official support for custom "Build Commands" for…
Vercel Python SDK 測試版（Beta）正式推出
Vercel Changelog234 days agoNew ToolVercel officially announced the launch of the beta version of the Vercel Python SDK, marking an important milestone for the broader Python developer community…
Vercel 推出零配置 Flask 後端部署，無需設定檔即可輕鬆上線 Python 服務★ 70
Vercel Changelog247 days agoReleaseVercel recently announced support for "zero-configuration" Flask backend deployment, which is great news for web developers accustomed to using Python for…
Vercel 構建系統現已支援 Python 套件管理器 uv，實現零配置部署★ 75
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Vercel 推出零配置 FastAPI 後端支援 (Zero-configuration FastAPI backends)★ 75
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CodeAgents + Structure：更優雅、高效的 Agent 行動執行新範式★ 75
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在 Python 中打造微型 Agent：用約 70 行程式碼實現 MCP 驅動的智慧代理★ 80
Hugging Face Blog387 days agoTutorialHugging Face recently published a highly practical technical tutorial demonstrating how to build a fully functional miniature AI agent in just around 70 lines…
如何使用 Gradio 建立 MCP 伺服器★ 80
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Tiny Agents：用 50 行程式碼打造支援 MCP 的輕量級 AI Agent★ 80
Hugging Face Blog415 days agoTutorialIn this Hugging Face blog post, the team demonstrates how to implement a fully functional, lightweight AI agent (referred to as a "Tiny Agent") that supports…