Spent a moment this evening vibe coding a voice-to-text command for my Mac/Stream Deck. Parakeet-mlx is awesome. Getting mic permissions to script on @corsair.com Stream Deck took an hour to debug.

Big news 📣 Effective Testing (From Slop to Software) is out. It covers testing and uses the most modern and up-to-date tooling. Pytest, uv, pyproject.toml, ruff, prek, ty, and more. To celebrate the launch, you can get 25% off with code SOCIAL25. Grab it here 👉 store.metasnake.com/testing

Python (and other languages I guess) folks. what does your AGENTS .md file look like with regard to testing and writing tests? 🤔

Getting closer! Incorporating final feedback from my wonderful reviewers.

The landing page is coming together...

Coming soon...

Excerpt from my latest book...

Folks, I'm ready for reviewers for my next book: Effective Testing with Python. If you are interested in helping me out, please submit to the form below. docs.google.com/forms/d/e/1F...

DuckDB folks: the “just make it faster” dream got a little more real. Sirius is an open-source, GPU-native execution engine (UW–Madison + NVIDIA AI engineers) that plugs into DuckDB as an extension and just posted a record-setting result on ClickBench. github.com/sirius-db/si...

I hope everyone had a great holiday break. I finally found some snow & enjoyed some much-needed time with the family. I should be announcing a new book (or 2) and another new project soon. My Professional Python and AI Lab cohorts are running next week on Maven. There is still time to sign up.

As we wrap up 2025 and enter the new year, I hope that this coming year is full of good food, excitement, and em dashes.

First impressions of the NVIDIA DGX Spark It’s quiet. So quiet that if you didn’t know it was on, you might assume it wasn’t.

Recent update for Effective Pandas 3...

Love this plot from my upcoming book "Effective Pandas 3"

Annoying ai-ism of the day (two times!)...

Just filing all the Pandas bugs... github.com/pandas-dev/p...

Fun week giving a talk on moving on from Vibe coding at PyBerlin. I also presented to 50 or so data scientists and engineers about best practices for Pandas usage.

Pandas 3 is coming out, and I'm updating the Effective Pandas content for it. It should be the first book that focuses on Pandas 3. Just filed my first bug for the rc. github.com/pandas-dev/p...

Tis the season. Sending out some swag...

Hope to see you at PyBerlin tomorrow. www.meetup.com/pyberlin/eve...

A different Thanksgiving this year. Celebrated with a walking tour of Berlin. No turkey, but some delicious Christmas market fares. Will be speaking at PyBerlin on Monday. Hope to see you there.

Image from my upcoming PyBerlin talk...

One of the best gifts you can give your team (and yourself) this holiday season is the gift of testing... My experience over the course of my career is that too few have received this gift.

One of the best gifts you can give your team (and yourself) this holiday season is the gift of testing... My experience over the course of my career is that too few have received this gift.

Got end-of-year budget left? Invest it where it matters most. Now is the time to level up your AI coding practices. The difference between “vibe slop” and professional engineering comes down to process, structure, and principles refined over fifty years of software development.

Fun day with the vibe and slop on the computer. No snow, so proceeded to come and slop in the mountains.

The 2026 Python Calendar notebook is available. I use it to plan my schedule, take notes, and brainstorm. Great team holiday gift! amzn.to/43AQB8L

I'm updating my Python 2025 Calendar for 2026. This "book" got mixed reviews. I made it for me. It has: - A Python 3 reference w/ area for taking notes on the side - A uv intro (w/note-taking area) - A 12-month calendar - 50 lined pages for notes www.amazon.com/Python-2025-...

Serendipitously had a 20-minute phone call with a Colombian friend that I haven't seen in 30 years (my son met her daughter...), which led to another 20-minute call. Small world indeed.

Be careful folks...

Do I know anyone in Berlin? Going to travel there soon and would love to give a Python, Data, AI, (or something else) talk/workshop to a user group or company.

I've been working on a "Coding Python with Agents in VSCode" workshop for a client. Really cool half-day course demoing best practices from 25 years of Python coding (and a little less time coding with agents). Good stuff like uv, pytest, types, CI/CD, Jupyter, and more.

Fun day! Teaching 3 different courses. Modern Python - dataclasses and friends Packaging AI apps - uv, github, ci/cd Modern EDA with Pandas Lots of incoming interest for custom AI workshops. Reach out if your team needs help with best practices.

I’ve been hearing from many companies that want focused, practical training on how to leverage AI systematically across their workflows. If your team could benefit from a custom, half-day, hands-on seminar tailored to your specific industry or challenges, let’s connect.

Spent the morning recording video on asynchronous programming in Python and using the OpenAI API asynchronously.

Spent this morning teaching "Vibe Coding with Python". Actually, that is somewhat of a misnomer. Taught best practices for using AI, ranging from intelligent completion to task completion to agentic coding. If your team is looking for a half-day best-practices course, reach out.

I've got the builder bug... Just finished the speakers, and now I want to build a new teleprompter. One that uses your existing monitor. I have a huge monitor and would be willing to sacrifice some screen real estate so I don't have to look at my tiny monitor (I'm getting old).

Speakers are done! That was a fun project. Now I'm finishing up a Vibe Coding with Python course. What should I listen to on these while working?

Going to be a fun day. Teaching three classes: MCP, Typing in Python, and EDA. Maybe play some ultimate or go for a ride. Hopefully wiring up the speakers.

Recording MCP content today. Demoing creating Python MCP's. Exposing them. Consuming them in Microsoft VSCode. Consuming them from OpenAI SDK. Get to work on the speakers when I'm done. Motivation!

Making speakers... Because it couldn't be harder than making a keyboard.

Where are the Pandas, Polars, XGBoost reviews/speedups on this thing?

This is the chart that I'm paying attention to. (Of course, it is outdated very quickly these days.) There is an "efficient frontier" where you get the most bang for your buck.

AI isn’t going anywhere, and neither should your skills. NVIDIA already offers certifications in Generative AI and LLMs & Multimodal Generative AI, and now they are raising the bar with two new professional-level certifications: Agentic AI and Generative AI LLMs.

AI isn’t going anywhere, and neither should your skills. Do you know where the gaps are in your AI knowledge? NVIDIA already offers certifications in Generative AI and LLMs & Multimodal Generative AI, and now they are raising the bar with two new certifications: Agentic AI and Generative AI LLMs.

Spent the day getting local models running on my laptop and hooking up Aider to it. (Some might find it interesting that AI was useless in helping me do this. Needed to use old-fashioned sleuthing skills.) (Nor is this documented anywhere that I could find.)

By my calculation, @anthropic.com owes me around $60,000. There was a recent settlement where Anthropic is paying authors $3,000 per book that they illegally acquired and used for their training data. I've written a few books and can find almost 20 of mine in their stolen content.

Loved adding "Ancombe's Quintet" to my curve fitting exercise in my class this week. Thanks Carl McBride Ellis, PhD

I'm teaching two Pandas courses this week. Here's a "whiteboard" from one of them. Looks like I need to correct it now as @pola.rs spans from small to big data now! Congrats to Ritchie Vink and team!