Web frameworks

Web frameworks

The most complete example of what the new development server makes possible is support for Cloudflare Workers. With Astro 6 Beta, astro dev can now run applications using workerd, Cloudflare's open-source JavaScript runtime, which is the same runtime that powers Cloudflare Workers in production. This means developers can now develop directly against real platform APIs rather than simulations or polyfills.

We also patched two potential denial-of-service vulnerabilities when handling large, malformed inputs. One exploits inefficient string concatenation in header parsing under ASGI ( CVE 2025-14550). Concatenating strings in a loop is known to be slow, and we've done fixes in public where the impact is low. The other one ( CVE 2026-1285) exploits deeply nested entities. December's vulnerability in the XML serializer ( CVE 2025-64460) was about those very two themes.

subprocess module relies on busy-loop polling to determine whether a process has completed yet. Modern operating systems have callback mechanisms to do this, and Python 3.15 will now take advantage of these.

Readable failures. When something breaks, I want to understand why in seconds, not minutes. Predictable setup. I want to know exactly what state my tests are running against. Minimal magic. The less indirection between my test code and what's actually happening, the better. Easy onboarding. New team members should be able to write tests on day one without learning a new paradigm.

Angular is a cohesive, all-in-one reactive framework for web development. It is one of the larger reactive frameworks, focused on being a single architectural system that handles all your web development needs under one idiom. While Angular was long criticized for being heavyweight as compared to React, many of those issues were addressed in Angular 19. Modern Angular is built around the Signals API and minimal formality, while still delivering a one-stop-shop that includes dependency injection and integrated routing.

Two years ago, the Express team initiated a complete revamp of the project's governance. What was once a largely single-maintainer effort under Doug Wilson evolved into a structured Technical Committee (TC) with multiple active contributors. "Our goal was to evolve Express from a single-maintainer project into a sustainable, community-driven effort - one built on shared responsibility, clear processes, and long-term vision," Ulises explained.

But the nature of web design has changed since CSS was first built. Most frameworks, whether it be Angular, React, or Astro, have become component-based. But even those components were designed to separate CSS and HTML. For instance, in Angular, a component consists of three files: a TypeScript file, an HTML file, and a CSS file. But those components are becoming more and more granular.

Christopher shares an article titled "The Uselessness of 'Fast' and 'Slow' in Programming." It digs into how the different aspects of software performance span a wide range of orders of magnitude, and how developers can obsess over irrelevant performance details, often losing more time working in suboptimal environments than building what they need with tools they already know. We also discuss an article about why uv is fast, which explains how most of its speed comes from engineering decisions rather than just being written in Rust.

Django, the Python web framework, has released Django 6.0, delivering a collection of developer-focused features, security enhancements, and performance improvements aimed at modernizing web application development. Django 6.0 introduces several major features, including a built-in background tasks framework, native Content Security Policy support, template partials for component-based development, and adoption of Python's modern email API. The release also includes support for Python 3.12, 3.13, and 3.14, while dropping support for Python 3.10 and 3.11.

If you've been watching the JavaScript landscape for a while, you've likely noticed the trend toward simplicity in web application development. An aspect of this trend is leveraging HTML, REST, and HATEOAS (hypermedia as the engine of application state) to do as much work as possible. In this article, we'll look at Hotwire, a collection of tools for building single-page-style applications using HTML over the wire.

At the core of oRPC's design philosophy is what the team calls "powerful simplicity." Developers can define API endpoints with a syntax that feels similar to writing standard functions, while automatically gaining production features like OpenAPI specification generation, server action compatibility, and contract-first workflow support. The library supports multiple schema validators out of the box, including Zod, Valibot, and ArkType, without requiring additional configuration.

Ripple is a new open-source front-end framework taking ideas from React, SolidJS, and Svelte into a TypeScript-first, component-oriented, JSX-like compiled language with fine-grained reactivity and scoped CSS. Created by Svelte maintainer Dominic Gannaway, Ripple offers a reactivity system with automatic dependency tracking, and direct DOM updates without a virtual DOM. Ripple aims to support better debugging through AI agents. The following code sample exemplifies many of the core Ripple features:

Coming from the framework world with its wide streets, I've learned that all the magic and convenience comes with a hidden price tag. Every new version brought extra maintenance, dependency chains, and features I never asked for but had to carry. My move to the web has been a bumpy road - acronyms, frameworks, libraries everywhere. To make sense of it, I decided to document my journey.

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To get the most out of this tutorial, you should have a basic knowledge of Python. Familiarity with general GUI programming concepts, such as event handling, widgets, and layouts, will also be beneficial. Installing NiceGUI Before using any third-party library like NiceGUI, you must install it in your working environment. Installing NiceGUI is as quick as running the python -m pip install nicegui command in your terminal or command line. This command will install the library from the Python Package Index (PyPI).

AnalogJS, a full-stack Angular meta-framework powered by Vite and Nitro, has officially released version 2.0, delivering powerful new capabilities around content management, build efficiency, and seamless developer tooling. The update marks a big step in Analog's evolution, strengthening its appeal for both content-heavy sites and large Angular applications. One of the release's new features are content resources, enabling developers to treat content (such as Markdown files) as first-class resources.

By the end of this guide, you'll be able to serve dynamic websites from FastAPI endpoints using Jinja2 templates powered by CSS and JavaScript. By leveraging FastAPI's HTMLResponse, StaticFiles, and Jinja2Templates classes, you'll use FastAPI like a traditional Python web framework. You'll start by returning basic HTML from your endpoints, then add Jinja2 templating for dynamic content, and finally create a complete website with external CSS and JavaScript files to copy hex color codes:

The Disk and LocalDisk services have a new method mkdirIfNotExists to creates directories. This is useful when using the local file system to ensure that a directory exists before saving files. Otherwise, an error can be thrown when it does not. On cloud storage services such as S3, directories are created automatically when saving files so this method does nothing.