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Tim Head @betatim.bsky.social · 14d

In the age of AI, LLMs and code assistants what does it mean to be an open-source project that is welcoming to newcomers? As a newcomer, is it enough to use AI to solve a good first issue and submit it as a PR? As a maintainer, what should you do with PRs like that?

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Tim Head @betatim.bsky.social · 16d

It has gone up a bit since the early days then :D

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Reposted by Tim Head

Olivier Grisel @ogrisel.bsky.social · Aug 19

Today at #EuroScipy2025, @glemaitre58.bsky.social and I presented a tutorial on pitfalls of machine learning for imbalanced classification problems.

We discussed what (not) to do when fitting a classifier and obtaining degenerate precision or recall values.

probabl-ai.github.io/calibration-...

Imbalanced classification: pitfalls and solutions — Probabilistic calibration of cost-sensitive learning

probabl-ai.github.io

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Reposted by Tim Head

Simon Willison @simonwillison.net · Jul 17

I scraped the schedule for Open Sauce 2025 this morning and built an alternative schedule interface with the option to add everything to your calendar (via ICS)... working entirely on my iPhone, using OpenAI Codex and Claude Artifacts

Prompts + transcripts: simonwillison.net/2025/Jul/17/...

Scraping and vibe coding a schedule app for Open Sauce 2025 entirely on my phone

This morning, working entirely on my phone, I scraped a conference website and vibe coded up an alternative UI for interacting with the schedule using a combination of OpenAI Codex …

simonwillison.net

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Reposted by Tim Head

Kirstie Whitaker @kirstiejane.bsky.social · Jun 20

DID YOU KNOW: Speakers and tutorial or workshop leaders get free registration to #JupyterCon?

DID YOU KNOW: The #deadline for submissions is Sunday, July 13 at 11:59 PM PDT (UTC -7)

events.linuxfoundation.org/jupytercon/p...

Call For Proposals (CFP) | LF Events

The Jupyter ecosystem has transformed data science, scientific research, and education. It has shaped the way a generation of developers and scientists develop their workflows.

events.linuxfoundation.org

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Tim Head @betatim.bsky.social · Jun 24

Has someone tried building a "stalebot" (closes stale GitHub issues) that uses a LLM or some such to decide if the issue is stale because the maintainers have not responded or because the creator hasn't followed up?

Reposted by Tim Head

Thomas Wouters @yhg1s.bsky.social · May 27

Use #Python at all? I would like to do a silly thing, which I hope will bring amusement to others as well as me (if it works out).

If you wouldn't mind, please fill out this form, and boost for reach:

docs.google.com/forms/d/e/1F...

Informal Pointless Python Survey

This is an informal, unscientific survey of (sort of) Python questions, with which I'd like to try to make something amusing, maybe something involving families feuding somehow. (I may have been inspi...

docs.google.com

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Tim Head @betatim.bsky.social · May 26

What about using cursor rules files to encode project maintainer knowledge? Put frequent PR review comments in these rules files so that contributors (that use AI tools) can fix/avoid them? Has anyone tried this? Useful? Too brittle?

Tim Head @betatim.bsky.social · May 23

Harry Frankfurt's "On Bullshit" should be mandatory reading for people who use LLMs to generate text

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Reposted by Tim Head

Juan Nunez-Iglesias @jni.codes · May 15

Any scikit-image fans in Vienna? The skimage team would like to meet in Vienna for a code sprint Aug 14-16 ahead of EuroSciPy. We'd super appreciate it if someone's workplace can host us! All we need is electricity, natural light, and (most important) walking distance to coffee. ☕️😂🙏

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Reposted by Tim Head

Gilles Louppe @glouppe.bsky.social · Apr 29

<proud advisor>
Hot off the arXiv! 🦬 "Appa: Bending Weather Dynamics with Latent Diffusion Models for Global Data Assimilation" 🌍 Appa is our novel 1.5B-parameter probabilistic weather model that unifies reanalysis, filtering, and forecasting in a single framework. A thread 🧵

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Tim Head @betatim.bsky.social · Apr 24

Bunch of hippies! ;)

Simon Willison @simonwillison.net · Apr 23

I sometimes muse about the savage job-destroying nature of the open source community: hundreds of thousands of developers working tirelessly to unemploy as many of their peers as possible by giving away the code they've written for free.

Tim Head @betatim.bsky.social · Apr 24

Bunch of hippies! ;)

Tim Head @betatim.bsky.social · Apr 21

Has anyone experimented with making cursor/windsurf/etc rules to help contributors to open-source projects like numpy, scikit-learn, scikit-image and so on?

If you could make rules that include some of the knowledge of the maintainers that could be cool

Tim Head @betatim.bsky.social · Apr 16

Import tariffs for your Python imports! pypi.org/project/tari...

tariff

Make importing great again! A parody package that imposes tariffs on Python imports.

pypi.org

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Reposted by Tim Head

WSL Institute for Snow and Avalanche Research SLF @slfdavos.bsky.social · Apr 15

So war der Winter 2024/25: Schneearm, ausgeprägtes inneralpines Altschneeproblem, wenig tödliche Lawinenunfälle
Alle Infos gibts Winterflash: www.slf.ch/de/lawinenbu...

📷 N. Büchi
1/4

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Tim Head @betatim.bsky.social · Apr 14

What is a nice and short term* for referring to the collection of Python tools and libraries in the data science ecosystem?

* should not be trademarked

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Reposted by Tim Head

Ines Montani 〰️ @inesmontani.bsky.social · Apr 4

Announcing a new event initiative: Feminist AI LAN Party! Katharine and I did a pilot event last year and we're now taking it to @pyconde.bsky.social.

We've also open-sourced event kits to make it easy to host your own, including:

💣 hacking LLMs
📑 data development
✂️ zine making

feministai.party

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Reposted by Tim Head

Python Software Foundation @python.org · Apr 1

BREAKING! Guido van Rossum, the legendary creator of #Python, has officially reinstated himself as Benevolent Dictator for Life (BDFL).

Feat. Guido van Rossum, @pumpichank.bsky.social, @snarky.ca and @mariatta.ca‬

Stay tuned for the documentary coming this summer!

www.youtube.com/watch?v=wgxB...

BREAKING: Guido van Rossum Returns as Python's BDFL

YouTube video by Honeypot

www.youtube.com

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Tim Head @betatim.bsky.social · Apr 1

The one crazy trick open-source maintainers don’t want you to know for getting your PRs reviewed: get a maintainer excited about it before making the PR

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Reposted by Tim Head

Olivier Grisel @ogrisel.bsky.social · Mar 14

Loky 3.5.0 is out!

Loky provides an extended version of Python's `concurrent.futures.ProcessPoolExecutor` that leverages cloudpickle to work within interactive Jupyter sessions on all platforms and reuse existing workers to hide the overhead of starting new workers each time.

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Tim Head @betatim.bsky.social · Mar 18

Soon!

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Tim Head @betatim.bsky.social · Mar 17

Looks like we need more bsky docs to teach the newcomers! ;)

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Tim Head @betatim.bsky.social · Mar 17

Please confirm your instruction by using your second factor

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Tim Head @betatim.bsky.social · Mar 13

Clear sign you've become part of the Administrati ;)

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