Owen Lamont @owen7ba.bsky.social Coder into Python and Rust. Interested in all things software engineering, data science, and computer graphics.
Eric Hutchins @ehutchins.bsky.social Started in infosec, co-authored the kill chain paper, dabbled in countering influence operations at Meta, and now back to infosec. Lover of command line, python, and rust.
Chris Albon @chrisalbon.com 
Lorena A Barba @labarba.bsky.social Engineering professor, computational scientist, jazz buff, techie, academic writer & font geek. Faculty director of the GW Open Source Program Office.
https://lorenabarba.com
www.linkedin.com/in/lorenabarba
Ned Batchelder @nedbat.com Python, Boston, mathy fun, juggling, autism parenting. https://nedbat.com
Pablo Galindo Salgado @pablogsal.com I program the programming program that other programmers use to program programs. Python Steering Council and core developer. Python 3.10/3.11 release manager. Deals with black holes and parsers. Attracts linker problems.
Jannis Leidel @jezdez.dev 🐍 PSF chair & fellow.
🎁 conda and friends at Anaconda.
📦 PyPA & 🎷Jazzband founder.
🕸️ mozilla data, ✍️MDN & 🎻 Django alum.
🚲 Mobilitätswende jetzt!
He/him
Yury Selivanov @1st1.dev Co-founder & CEO of Gel • Python core developer • PSF fellow • async/await • asyncio • uvloop • asyncpg ••• @geldata.com • github.com/1st1
Hannah @story645.bsky.social graduate student studying visualization (CS) @thegraduatecenter.bsky.social & @matplotlib.org community manager
Stephan Hoyer @handle.invalid Building AI climate models at Google. I also contribute to the scientific Python ecosystem, including Xarray, NumPy and JAX.
Opinions are my own, not my employer's.
Ines Montani 〰️ @inesmontani.bsky.social 💥 Founder & CEO @explosion.ai
👩💻 Developing spacy.io + prodi.gy + beta.ellf.ai
🐍 Python Software Foundation Fellow
⚡ Hacking @feministai.party
🧠 AI, Machine Learning & NLP
💼 linkedin.com/in/inesmontani
🐘 sigmoid.social/@ines
💥 explosion.ai
🌎 ines.io
Paige Bailey (webpaige.dev) @dynamicwebpaige.bsky.social ✨ Keep it simple, make it scale. AI should be about empowering users and building understanding. 👩💻 AI Developer Experience @ Google DeepMind, ex-Github, ex-Google
Sean Law @seanlaw.bsky.social 👋 Principal Data Scientist, R&D at Schwab. 🐍 PyData Ann Arbor co-organizer. 🔥Creator of the STUMPY Python package for modern time series analysis:
👉 https://stumpy.readthedocs.io/en/latest/
Polars @pola.rs Dataframes powered by a multithreaded, vectorized query engine, written in Rust.
Christopher Bailey @digiglean.bsky.social Host of Real Python Podcast - Guitars, Dogs, Photography, Movies, Creativity - Python Software Foundation Fellow
@lukemanley.bsky.social @lukemanley.bsky.social 
Real Python @realpython.com Online #Python Training & Expert Community: Tutorials, Video Courses, Books, Quizzes...and More! Join 1M+ Pythonistas at http://realpython.com
SciPy Conference 2026 @scipyconf.bsky.social SciPy 2026 Conference for Scientific and Technical Computing topics in Python. Tutorials July 13-14, Conference July 15-17, Sprints July 18-19.
scikit-learn @scikit-learn.org Machine learning in Python • Open Source
https://scikit-learn.org
Bob Belderbos @bbelderbos.bsky.social Helping people become better software developers — belderbos.dev
Kevin Cunningham @dolearning.dev Developer educator | Helping dev teams keep their JS/TS, Python and Java sharp (sometimes PHP and Golang too)
https://kevincunningham.co.uk
📍Northern Ireland
Rohan Gorantla @rohangorantla.bsky.social Developing ML methods for Drug Discovery @ Novartis 🧬💻 | prev: PhD student @ University of Edinburgh with Toni Mey
Kyle @kylestratis.com 📊 Data, AI/ML, and Cloud consultant @ Stratis Data Labs
🚉 VPEng @ Sequel Institute
🤓 Startup advisor
✒️ Writing about MCP
🐍 Python
☁️ AWS
🧙♂️ Elixir
🐷Ham radio
🇺🇸↔🇬🇷 [Boston // Athens]
Mostly tech things here
https://sifa.id/p/kylestratis.com
tushar.pyc @tush.ar Metaprogramming • Python / Zig / DevTools guy
David Hewitt @davidhewitt.dev Developing PyO3 to bring Rust 🦀 and Python 🐍 together.
Working with the team at Pydantic to build software that developers love.
David Brownman @xavd.id Software developer, tinkerer, enthusiast. Currently slinging bits at Stripe.
For my media reviews, see: @david.reviews.
Blog & more: https://xavd.id
David Asboth @davidasboth.com Data generalist, educator, author of The Well-Grounded Data Analyst (Manning, 2025). Co-host of the Half Stack Data Science podcast.
Marco Peixeiro @marcopeix.bsky.social Applied AI Scientist at Nixtla. Author of Time Series Forecasting in Python. I write hands-on articles and develop courses mostly around forecasting and data science in general.
Allen Downey @allendowney.bsky.social Former professor at Olin College, principal data scientist at PyMC Labs, author of Think Python, and Probably Overthinking It -- blog and book -- and stark raving Bayesian.
Python4DataScience @python4data.science Teaching materials for the cusy training courses on a Python-based data science workflow: https://cusy.io/seminars
Stephen Gruppetta @stephengruppetta.com Constantly looking for simple ways to explain complex things…
Here you'll find:
• Python
• Narrative Technical Writing
• Track & Field Athletics
Links in the pinned post below
stephengruppetta.com
Plotly @plotly.com Plotly builds data visualization tools and platforms for analysts, engineers, scientists, and coding agents you work with.
Jake VanderPlas @jakevdp.bsky.social Write code. Mostly Python.
Reuven M. Lerner @lernerpython.com Helping you become more confident with Python and Pandas since 1995.
• Courses: LernerPython.com
• Newsletters: BetterDevelopersWeekly.com • BambooWeekly.com
• Books: PythonWorkout.com • PandasWorkout.com
• Videos: YouTube.com/reuvenlerner
Eric Ma @ericmjl.bsky.social Senior Principal Data Scientist, Moderna. Trying to follow Jesus.
Osvaldo Martin @aloctavodia.bsky.social Research Fellow at Aalto University. Open source contributor #ArviZ, #Bambi, #Kulprit, #PreliZ, #PyMC, #PyMC-BART.
Support me at https://ko-fi.com/aloctavodia
https://bayes.club/@aloctavodia
PyMC @pymc.io Probabilistic Programming and Bayesian Modeling in Python
Vincent D. Warmerdam @koaning.bsky.social Prefer common sense over hype. Employed at @marimo.io, known for calmcode.io and koaning.io. Also working on remember.cards these days.
Thomas Wiecki @twiecki.bsky.social That PyMC guy
Leland McInnes @lelandmcinnes.bsky.social A Mathematician dabbling in Data Science, especially unsupervised learning and data exploration. UMAP, HDBSCAN, PyNNDescent, DataMapPlot. (He/Him)
Gaël Varoquaux @gaelvaroquaux.bsky.social Research & code: Research director @inria
►Data, Health, & Computer science
►Python coder, (co)founder of scikit-learn, joblib, & @probabl.bsky.social
►Sometimes does art photography
►Physics PhD
Hannes Mühleisen @hannes.muehleisen.org I like databases and boats. Co-creator of @duckdb.org, Co-Founder and CEO DuckDB Labs.
Chip Huyen @chiphuyen.bsky.social AI x storytelling
AI Engineering: https://amazon.com/dp/1098166302
Designing ML Systems: http://amazon.com/dp/1098107969
@chipro
Sebastian Raschka (rasbt) @rasbt.bsky.social ML/AI researcher & former stats professor turned LLM research engineer. Author of "Build a Large Language Model From Scratch" (https://amzn.to/4fqvn0D) & reasoning (https://mng.bz/Nwr7).
Also blogging about AI research at magazine.sebastianraschka.com.
Richard McElreath 🐈⬛ @rmcelreath.bsky.social Anthropologist - Bayesian modeling - science reform - cat and cooking content too - Director @ MPI for evolutionary anthropology https://www.eva.mpg.de/ecology/staff/richard-mcelreath/
Pradyun Gedam @pradyunsg.me he/him. Probably trying to make refined sand do something useful.
Wearer of many hats in OSS spaces: CPython, pip, packaging, TOML, Furo, Sphinx extensions, Executable Books and more.
@marcogorelli.bsky.social @marcogorelli.bsky.social Senior Software Engineer at Quansight Labs
Pretty focused on Narwhals and Polars these days, generally interested in dataframes and time series
Project Jupyter @jupyter.org Multi-language interactive computing environments. Jupyter Notebook, JupyterLab and related projects – @mentions not monitored. Open issues on GitHub.
Luca Baggi @baggiponte.bsky.social ML Engineer & Open Source Maintainer
Lucy Li @lucy3.bsky.social Postdoc at UW NLP 🏔️. #NLProc, computational social science, cultural analytics, responsible AI. she/her. Previously at Berkeley, Ai2, MSR, Stanford. Incoming assistant prof at Wisconsin CS. lucy3.github.io- M Mridul Seth @mriduls.com Invested in development and maintenance of Open Source | Science | Data.
mriduls.com
Bhavani Ravi @bhavaniravi.bsky.social Independent Software Consultant
🐍 Pythonsita, Backend, Dev/Data Ops Engineer
Can't fit in a box 📦
Running thelearning.dev community
More about me at bhavaniravi.com
Julia Evans @b0rk.jvns.ca programming and exclamation marks
blog: jvns.ca
zines: wizardzines.com
:probabl. @probabl.ai Own Your Data Science
https://probabl.ai
Soumith Chintala @soumithchintala.bsky.social Cofounded and lead PyTorch at Meta. Also dabble in robotics at NYU.
AI is delicious when it is accessible and open-source.
http://soumith.ch
Aki Vehtari @avehtari.bsky.social Professor in computational Bayesian modeling, Aalto University, Finland. Co-author of Bayesian Data Analysis 3rd ed, Regression and Other Stories, Active Statistics and Bayesian Workflow. #mcmc_stan and #arviz developer.
https://users.aalto.fi/ave/
Jim Crist-Harif @jcristharif.bsky.social 🐍 OSS @ NVIDIA
Proud Minnesotan. Jewish. Dad. He/Him.
Jeremy Tuloup @jtp.io Technical Directory at QuantStack, Project Jupyter Core Developer & Distinguished Contributor - he / him - https://github.com/jtpio - jtp.io
James Powell @dontusethiscode.bsky.social 
Gilles Louppe @glouppe.bsky.social AI for Science, deep generative models, inverse problems. Professor of AI and deep learning @universitedeliege.bsky.social. Previously @CERN, @nyuniversity. https://glouppe.github.io
Chris Holdgraf @choldgraf.com Executive Director of @2i2c.org
🪐 Jupyter Project distinguished contributor
👬 mybinder.org and hub.jupyter.org team
📚 jupyterbook.org mystmd.org and executablebooks.org
open communities 🙌
open infrastructure 💻
open science 🧪
Colin Carroll @colcarroll.bsky.social Runner, biker, hiker. Software engineer @DeepMind, and open source enthusiast. Sometimes crafts things out of wood. he/his.
Bernát Gábor @gjbernat.bsky.social Senior Software engineer @Bloomberg (from 🇭🇺🇷🇴🇬🇧), living in Los Angeles 🇺🇸 @ThePsf fellow. Maintainer of many - http://bernat.tech/about (tox, virtualenv,...) Python packages. Opinions my own.
Roman Yurchak @romanyurchak.bsky.social ML engineer & Founder at Symerio.
Previously core developer Pyodide, scikit-learn.
🇺🇦
@glemaitre58.bsky.social @glemaitre58.bsky.social 
DuckDB @duckdb.org DuckDB is an analytical in-process SQL database management system. "DuckDB" and the DuckDB logo are registered trademarks of the DuckDB Foundation.
lloyd tabb @lloydtabb.bsky.social Looker Founder, makes things with bits.
Trying to make a better SQL with Malloy
Hugging Face @hf.co The AI community building the future! 
Sandrine Pataut @sandrinep.bsky.social Pythonista 🐍 Data Scientist 💻 @AIClubGenderMin @HumbleData👩🏻💻 Back from the other side of the Channel 🇫🇷🇬🇧 Maths • Cooking • Sport & Outdoors- She/Her
Olivier Grisel @ogrisel.bsky.social Software engineer at probabl, scikit-learn contributor.
Also at:
https://sigmoid.social/@ogrisel
https://github.com/ogrisel- X @xgboost.bsky.social @xgboost.bsky.social
joelgrus @joelgrus.bsky.social you know what I blame this on the breakdown of? society
Bojan Tunguz @tunguz.bsky.social XGBoost maximalist
Celso Martinho @celso.bsky.social 👶 From when Mosaic took over Gopher
🏢 VP of Engineering @cloudflare.social
🕹️ Slightly addicted to retrocomputing
Jesper Dr.amsch @jesper.drams.ch I share non-hype ML & AI with 8+ years XP
🌦 Machine Learning at ECMWF
💾 Fellow at SSI
You miss 99% of benchmarks you don't overfit on!
🏳️🌈 they
Vicki @vickiboykis.com Founding list[float] engineer. Recsys. Personalization. Infra. Systems. Normcore code. Nutella. Vectors. Words. Vibes. Bad puns (soon).
https://vickiboykis.com/what_are_embeddings/
EuroRust @eurorust.eu EuroRust is the conference for the European Rust community. We cover all things Rust. Presented by @mainmatter.com. October 14-17 2026, Barcelona & Online.
October 14-17 2026, Barcelona & Online
Kelsey Hightower @kelseyhightower.com Minimalist
nrc @ncameron.org 
Charlie Marsh @crmarsh.com Building Astral: Ruff, uv, and other high-performance Python tools, written in Rust.
Mara Bos @mara.bsky.social Rust dev, Electronics engineer, Author, RustNL, RustWeek organizer, ADHD, Polyamorous, Lesbian, She/Her
Luca Palmieri @lpalmieri.com Author of zero2prod.com, a book on backend development in Rust, and https://rust-exercises.com.
Building pavex.dev, a new Rust web framework.
Principal Engineer at Mainmatter. Opinions are my own. He/him.
@algo_luca on Twitter.
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app