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Numba in the Browser: Unlocking a New Scientific Python Stack in JupyterLite
Numba now runs entirely in the browser through JupyterLite, compiling Python functions to WebAssembly with a new LLVM-based execution engine and delivering substantial performance gains without a server. The work also unlocks browser-native support for the broader Numba ecosystem, including PyMC, PyTensor, and other scientific computing libraries.
Composite: The Pattern Behind Menus, File Systems and Games
The Composite pattern lets you treat individual objects and entire object hierarchies through the same interface, making tree-like structures much easier to manage. Using a simple Python game engine, the video demonstrates how this pattern naturally applies to game scenes, UI frameworks, file systems, menus, and similar hierarchical designs.
Two lines of Python that segfault the interpreter
Two lines of Python could crash CPython 3.14 through 3.16 because SET_ADD assumed it was always operating on a real set, while PEP 749 made__conditional_annotations__rebindable from Python code. The post explains how that assumption broke, why it caused a type-confusion crash, and why stable releases and the development branch needed different fixes.
Django EMAIL_BACKEND Is Deprecated — Here’s How to Fix It (Django 6.1 MAILERS Guide)
Django 6.1 deprecates EMAIL_BACKEND and related email settings in favor of the new MAILERS configuration, ahead of their removal in Django 7.0. The article shows how to migrate existing email settings and update code to use mailer aliases and the new email APIs.
interlock
Circuit breaker for Python: sync + async in one class, sliding-window rate, slow-call detection, Polly-style resilience pipeline, type-safe API.
💖 Most Popular in the Last Two Weeks
Celery: from first task to advanced recipes
The article introduces Celery, a distributed task queue for Python, then walks through practical patterns for running, routing, batching, timing out, and retrying asynchronous tasks. It also covers advanced recipes such as preventing parallel execution with Redis locks and integrating Celery tasks with Python’s async/await workflows.
Numba in the Browser: Unlocking a New Scientific Python Stack in JupyterLite
Numba now runs entirely in the browser through JupyterLite, compiling Python functions to WebAssembly with a new LLVM-based execution engine and delivering substantial performance gains without a server. The work also unlocks browser-native support for the broader Numba ecosystem, including PyMC, PyTensor, and other scientific computing libraries.
Two lines of Python that segfault the interpreter
Two lines of Python could crash CPython 3.14 through 3.16 because SET_ADD assumed it was always operating on a real set, while PEP 749 made__conditional_annotations__rebindable from Python code. The post explains how that assumption broke, why it caused a type-confusion crash, and why stable releases and the development branch needed different fixes.
dottxt-ai / outlines
Structured Outputs
Self-contained highly-portable Python distributions
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