Show HN: Python Playground – a Chrome extension to keep Python always at hand

Hey HN!

I built Python Playground, a Chrome extension that gives you a ready-to-use Python environment right in your browser - no installation needed.

It runs Python locally via Pyodide (WebAssembly) with most popular libraries included out of the box, plus a package manager to install additional modules from PyPI. The environment supports inline data visualization with Matplotlib and Plotly, file upload/download through a sandboxed filesystem, and the ability to save and reload snippets. Everything executes entirely on the client, so it works offline and nothing ever leaves your browser.

In addition to the extension, there’s also a web version you can try right away: https://python-playground.com

I’m planning to add debugging tools, synchronization between devices, and possibly more advanced features over time. I would be very interested to hear your feedback and what improvements you think would be most useful.

Page Table Sharing in Linux (blogs.oracle.com)

Can Cheaper Lasers Handle Short Distances? (semiengineering.com)

Typepad Is Shutting Down (everything.typepad.com)

Show HN: Add audio to your Anki cards (github.com)

Spectrum – catching clojure.spec conform errors at compile time (github.com)

Testing Time (and Other Asyncronicities) (go.dev)

Will There Ever Be a 10x Prompt Engineer? (embedworkflow.com)

Rust for Everyone! (youtube.com)

How the Japanese concept of "ikigai" was appropriated by the West (chiefwordofficer.substack.com)

Ask HN: What are you working on August 2025?

Model Merging – A Biased Overview (crisostomi.github.io)

Desktop Linux Keeps Winning the Wrong Battles (howtogeek.com)

Show HN: A simpler way to manage internationalization in component-based apps (github.com)

A free curriculum to teach high school journalism (teachjournalismforall.com)

Taiwan indicts three over alleged theft of TSMC trade secrets (theregister.com)

I'm working on implementing a programming language all my own (eli.li)

GMP damaging Zen 5 CPUs? (gmplib.org)

AI's New Interface: Smart Glasses, Shift Beyond Screens, Why We Backed Mentra (hartmanncapital.com)

Cloudflare runs more AI models on fewer GPUs (blog.cloudflare.com)

How we built the most efficient inference engine for Cloudflare's network (blog.cloudflare.com)

Ghostty Config Generator (ghostty.zerebos.com)

Nvidia (NVDA) Earnings Hub – Detailed Overview and Key Takeaways (dashboard-finance.com)

Read seinfeld subtitles to learn Spanish (guavabook.firebaseapp.com)

The need to reliably preserve our community history (lwn.net)

Show HN: DataBot – Self-Hosted AI to Query and Visualize Data Using Language (intellimenta.com)

Bitwise Operations for the Average Developer (blog.raed.dev)

Unusual Articles (en.wikipedia.org)

The Single Line Theory [video] (youtube.com)

In Search of AI Psychosis (astralcodexten.com)

My Own WTF, or How to Not Handle URL Redirects (deanebarker.net)

Mapping the Mythos Part I: A Network Analysis of Greek Mythology (quantifiedcuriosities.com)

Windows Out of Box Experience for enterprises to adjust control freakery (theregister.com)

One long sentence is all it takes to make LLMs misbehave (theregister.com)

CPU Branch Prediction – Earliest Forms of Machine Learning (medium.com)

Why I'm Against Claude Code's Grep-Only Retrieval? It Just Burns Too Many Tokens (milvus.io)

Ancient 'bird oracle text' unearthed at Hittite site in central Türkiye (turkiyetoday.com)

The World Runs 20B Instances of Curl. Where's the Support? (thenewstack.io)

Jaw-Dropping Water Parks Are Becoming Standard Fare at the Top of the Market (mansionglobal.com)

Kiwi.com releases the first commercial Flight Search MCP server (mcp-install-instructions.alpic.cloud)

A16Z top AI apps ranking (twitter.com)

Tax the Rich. They Won't Leave New York (rollingstone.com)

New easy ways to create and edit videos with gen AI in Google Vids (workspace.google.com)

Efficacy of blowing shankh on moderate sleep apnea: a randomised control trial (publications.ersnet.org)

Show HN: Element to LLM – Extension That Turns Runtime DOM into JSON for LLMs

The world produced enough calories in 2020 to feed 15B people (newscientist.com)

VIMMaster (github.com)

Amazing Grace - Celtic Woman [video] (youtube.com)

Countries Never Trusted America. Trump Is Proving Them Right (nytimes.com)

Dochelper.ai – New feature save message the chatbot can't answer

Parents of California teen claim ChatGPT became son's 'suicide coach' (ktla.com)

Show HN: Python Playground – a Chrome extension to keep Python always at hand

Comments (0)