iiinova — where your digital self keeps evolving

Riccardo Cappuzzo @riccardocappuzzo.com · 27/09/2026

TIL about pairdrop.net Extremely convenient for sharing files from my Android phone to my Macbook, given that the phone can't use Airdrop yet 🙄

pairdrop.net

PairDrop

Instantly share images, videos, PDFs, and links with people nearby. Peer2Peer and Open Source. No Setup, No Signup.

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Skrub @skrub-data.bsky.social · 01/09/2026

🐞 Bug fix release incoming 🐛 Version 0.10.1 of skrub is now live! In this release, we fixed a Cloudpickle import error that could be triggered by some updated dependencies, along with some other improvements. Release post: github.com/skrub-data/s... 1/4

github.com

Release 0.10.1 · skrub-data/skrub

🌟 Skrub 0.10.1 has been released 🌟 Main features When a cross-validation splitter has been passed to .skb.mark_as_X(), it it now possible to select a specific split from it when calling .skb.train...

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Riccardo Cappuzzo @riccardocappuzzo.com · 25/08/2026

Lessons learned: The nofail flag is very important, Claude is great, but still not good enough to spot the solution before going along with the nuclear option and I absolutely need a bloody mini HDMI adapter, all my woes would have been solved by simply looking at the logs

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Riccardo Cappuzzo @riccardocappuzzo.com · 25/08/2026

As it turns out, the problem was that I misconfigured /etc/fstab so that said "right HDD" was mounted without the nofail flag, and I just so happened to unplug said HDD to bring it to work. So power went out, the Pi tried to boot but went "😱 no HDD" and got stuck

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Riccardo Cappuzzo @riccardocappuzzo.com · 25/08/2026

So, my evening was spent blindly debugging with Claude why my Pi wouldn't finish booting after a power cut. arp fishing for an IP, almost losing the SD in the thermal case, and a final decision of backing up and flashing the SD from scratch And all I had to do was plugging in the right HDD

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Skrub @skrub-data.bsky.social · 25/03/2026

✨ skrub version 0.8.0 has been released ✨ This version includes several new features, including multiple improvements to the functionality and performance of the Data Ops, along with a few bug fixes and improvements to the docs. Changelog: skrub-data.org/stable/CHANG... Highlights below ⤵️

skrub-data.org

Release history

Release 0.8.0: New Features: The eager_data_ops configuration option has been added. When set to False, no previews are computed and validation is deferred until the DataOp is actually used (e.g. w...

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Riccardo Cappuzzo @riccardocappuzzo.com · 24/03/2026

For context, $375M is about two days worth of profit for Meta in 2025

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Riccardo Cappuzzo @riccardocappuzzo.com · 12/03/2026

What a world we are already living in www.adriankrebs.ch/blog/dead-in...

a screenshot of an email that reads "hey sorry - my agent got a mind of its own and started applying for jobs for me"

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Riccardo Cappuzzo @riccardocappuzzo.com · 21/02/2026

And this is the result recorded with asciinema Selecting a file opens it in VS Code at the given line, very convenient

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Riccardo Cappuzzo @riccardocappuzzo.com · 18/02/2026

Rabbit hole of the day: writing a command that fuzzy searches in the repository for any substring, shows me a preview of the line with context and opens the file at the given line in VS Code. Requires fzf, universal-ctags and batcat

the screenshot of a shell script that uses fzf and ripgrep to find substrings, classes, and files in the skrub repository

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Riccardo Cappuzzo @riccardocappuzzo.com · 12/02/2026

And yes I understand that there may be some (a lot of?) human influence on the blog post. However, whether it was a human or an AI doesn't matter: the end result is the same, and the conditions for the same thing to happen with no human in the loop are likely already here.

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Riccardo Cappuzzo @riccardocappuzzo.com · 12/02/2026

I've always thought OpenClaw was a bad idea (giving an AI agent free reign over my PC? *insanity*) I did not realize it was "write a hit piece and publish it in a blog in retaliation for closing a PR" bad. theshamblog.com/an-ai-agent-...

theshamblog.com

An AI Agent Published a Hit Piece on Me

Summary: An AI agent of unknown ownership autonomously wrote and published a personalized hit piece about me after I rejected its code, attempting to damage my reputation and shame me into acceptin…

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Riccardo Cappuzzo @riccardocappuzzo.com · 27/01/2026

The more I hear about Clawbot the more I'm convinced it's some kind of social experiment trying to figure out how many people are willing to put their entire private and professional lives in the hands of an overeager child open to the unlimited influence of the world wide web

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Riccardo Cappuzzo @riccardocappuzzo.com · 12/01/2026

This was an interesting bug to track down.

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Riccardo Cappuzzo @riccardocappuzzo.com · 12/01/2026

Funny bug of the day: if you try to use pandas' "guess_datetime_format" with datetimes where the hour and minute are the same as the year (like 1959 and 19:59), the parser will fail and return None. This bug is present in pandas 2.3.3, but has been fixed in the dev version.

A short script demonstrating how the `guess_datetime_format` function of pandas does not work as intended when trying to parse the datetime "1959-01-01 19:59:16": it returns none instead of returning the correct datetime format.

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Riccardo Cappuzzo @riccardocappuzzo.com · 02/01/2026

Something that immediately ended up being a roadblock was the "This cell redefines variables..." error. I realized that when I'm plotting dataframes I always end up chaining df operations across different cells and this is putting a wrench in that. You might argue it's for the best, but still 😅

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Riccardo Cappuzzo @riccardocappuzzo.com · 02/01/2026

Random question shot into the ether: if I'm relying on VSCode's interactive windows to emulate notebooks, what are some reasons why I should switch to @marimo.io notebooks? I haven't looked into marimo's features, so maybe I'm missing out on things I can't do from VSCode.

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Riccardo Cappuzzo @riccardocappuzzo.com · 16/12/2025

That's me! It was a fun presentation and we got a lot of interesting questions Also people laughed at the memes which is the most important thing, obviously

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Riccardo Cappuzzo @riccardocappuzzo.com · 09/10/2025

"ok the test run is done, let's see" ... "this will be hard to debug"

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Emilien Schultz @emilienschultz.eurosky.social · 01/10/2025

What a banger is skrub @skrub-data.bsky.social ! Big thumbs up for the sklearn team & the maintainer of this package

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Riccardo Cappuzzo @riccardocappuzzo.com · 07/10/2025

Thanks a lot for the compliments! I had a lot of fun giving the talk, and I'm happy to see people liked it

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Riccardo Cappuzzo @riccardocappuzzo.com · 26/09/2025

My first actual talk in front of a ton of people 🙃

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Skrub @skrub-data.bsky.social · 05/09/2025

Do you have to deal with numerical features that involve large outliers, and need to train linear models or neural networks? Then you might want to try the skrub SquashingScaler. The SquashingScaler behaves like scikit-learn RobustScaler, but smoothly clips outliers to predefined boundaries.

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Olivier Grisel @ogrisel.bsky.social · 19/08/2025

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-...

probabl-ai.github.io

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

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Compute! Paris @computeparis.bsky.social · 12/08/2025

📢 Talk Announcement "Skrub: machine learning for dataframes", by Guillaume Lemaitre, Jérôme Dockès and @riccardocappuzzo.com. @skrub-data.bsky.social 📜 Talk info: pretalx.com/pydata-paris-2025/talk/T9KTPU 📅 Schedule: pydata.org/paris2025/schedule 🎟 Tickets: pydata.org/paris2025/tickets

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Olivier Grisel @ogrisel.bsky.social · 18/08/2025

Attending the @skrub-data.bsky.social tutorial by @riccardocappuzzo.com and @glemaitre58.bsky.social at #EuroScipy2025. They introduce the new DataOps feature released in skrub 0.6. Here is the repo with the material for the tutorial: github.com/skrub-data/E...

Photo of Riccardo presenting skrub DataOps in a lecture room to an audience of ~50 people.

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Mike Fiedler @miketheman.com · 28/07/2025

Heads Up, #Python Developers! There is an active phishing attack targeting PyPI users. • Threat: Emails from noreply@pypj.org (with a 'j') link to a fake login page. • Action: Do not click any links. If you already did, change your PyPI password ASAP. • Note: PyPI itself has not been breached.

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Riccardo Cappuzzo @riccardocappuzzo.com · 24/07/2025

"My watch gained gemini power overnight" One sentence horror

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Riccardo Cappuzzo @riccardocappuzzo.com · 24/07/2025

Huge release, and the first one where I felt like I actually contributed a lot to the final result. I really think DataOps are a game changer, and I can't wait to see what people come up with with them. I also ended up rewriting most of the user guide, hopefully improving it along on the way 😂

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Riccardo Cappuzzo @riccardocappuzzo.com · 19/07/2025

The walrus operator mystifies me

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Randall Munroe @xkcd.com · 19/06/2025

David R. Hagen just solved a small mystery that I mentioned 13 years ago in the mouseover text of a comic drhagen.com/blog/the-mis...

drhagen.com

The Missing 11th of the Month - David R Hagen

Personal website of David R Hagen, scientific software engineer

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Riccardo Cappuzzo @riccardocappuzzo.com · 13/06/2025

Really cool graffiti I spotted while walking around in the town where I live

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Riccardo Cappuzzo @riccardocappuzzo.com · 04/06/2025

Out of all the features in the expressions, this may be my personal favorite. I always end up adding too many configurations just because the syntax is so convenient.

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Skrub @skrub-data.bsky.social · 28/05/2025

📝 The skrub TextEncoder brings the power of HuggingFace language models to embed text features in tabular machine learning, for all those use cases that involve text-based columns.

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Skrub @skrub-data.bsky.social · 21/05/2025

The Skrub Cleaner is a lightweight transformer that performs consistency checks on a dataframe: 🔍 It gives a uniform representation of null values, converting those represented as strings (such as "N/A") 🗑️ It drops columns that contain too many null values (according to a user-defined threshold)

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Riccardo Cappuzzo @riccardocappuzzo.com · 20/05/2025

Now that the paper is out, I can finally share the totally-not-confusing script/plot/table map I made to track which scripts prepare which figures and tables and from what data. If it wasn't clear, don't do this. If you *really* have to, I used the @obsidian.md canvas for this.

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