EuroPython 2026, Kraków @europython.eu The European Python Conference - by the community & for the community.
Fernando Pérez @fernandoperez.org Open source, open science, AI in science for earth/ice and healthcare. IPython creator, @projectjupyter.bsky.social and 2i2c.org co-founder.
Prof @ UC Berkeley Stats, director of @ucbids.bsky.social, co-director @schmidtdse.bsky.social; LBL scientist.
Joe Kington @joferkington.bsky.social Geology to Software to Remote sensing. Opinions and poor taste my own. He/Him. SLC-based. PhD if you care about that. This account is all dog pictures and mindless prattle.
William Woodruff (1.3.6.1.4.1.55738) @yossarian.net skeeting in accordance with the universal law.
yossarian.net / blog.yossarian.net
Jacob Tomlinson @jacobtomlinson.dev Building RAPIDS and Dask at NVIDIA. Views are my own. he/him.
https://jacobtomlinson.dev
Randall Munroe @xkcd.com 
Thomas Robitaille @astrofrog.trobitaille.dev Co-founder of Aperio Software, scientific software developer, lead developer of Glue, Astropy developer, open development advocate.
Edward Steele @edwardccsteele.bsky.social Exploiting AI in ocean, weather and climate applications - Met Office IT Fellow for Data Science.- Q @quasiben.bsky.social @quasiben.bsky.social
Tibor Šimko @tiborsimko.bsky.social Open and reproducible research at CERN. Founder of CERN Open Data portal, REANA reusable analysis platform, CERN Analysis Preservation framework, Invenio digital repository framework.
Furkan Onder @furkanonder.bsky.social Python Triage Member | Focusing on CPython #LKD #Python #ArchLinux #Django #eBPF
https://github.com/furkanonder/
Jan-Hendrik Müller @kolibril13.bsky.social Generative Design 🎨 - Coding 🧑💻 - Science Communication 🧬
Jaime Rodríguez-Guerra @jaimergp.dev Another PhD captured by open source.
⇒ Core team at @conda-forge.org.
⇒ Steering council at @conda.org.
⇒ Staff Software Engineer at @quansight.com.
⇒ Blogging at rjai.me.
he/him
Irit Katriel @iritkatriel.bsky.social CPython Core Dev. Views are my own.
Mackenzie Weygandt Mathis @trackingactions.bsky.social Scientist 👩🔬 & EPFL Assoc Prof 🇨🇭 | Devloper of DeepLabCut.org , 🦓 cebra.ai | neuroscience & ML 🧠 mackenziemathislab.org
Paul “π” Ivanov - @ivanov@mastodon.sdf.org @paulivanov.bsky.social onward and awkward.
Joshua Adelman @synapticarbors.bsky.social former biophysicist turned computational scientist/scientific software engineer in the steel city
Joe Hamman @jhamman.bsky.social Climate scientist, engineer and human. Co-founder/CTO @earthmoverHQ. @xarray_dev / @pangeo_data dev. Formerly
@carbonplanorg, @NCAR_Science, and @uw_cee. He/him.
Benoît Bovy @benbovy.github.io Earth Science, open-source software development (https://xarray.dev/, https://fastscape.org/, https://github.com/geigr, Spherely, etc.) and music creation.
https://benbovy.github.io/
Thomas Rackow 🧊 @trackow.bsky.social Scientist @ecmwf.int : climate & ocean variability, kilometre-scale modelling, and its visualisation. #art and music enthusiast. #scicomm
Matthew Feickert @matthewfeickert.com Research scientist at UW-Madison data science institute working on #LHC #physics and data science with the ATLAS experiment @ CERN and IRIS-HEP. PhD @ SMU
Madicken Munk @madickenmunk.bsky.social I like coffee, cats, scientific computing, and nuclear engineering. Assistant Professor at Oregon State University. 
Emmanuelle Gouillart @emmagouillart.bsky.social Scientific director of Saint-Gobain Research Paris
Also open-source and scientific Python (scikit-image, plotly)
Doug McNeall @dougmcneall.bsky.social Science Lead for Data-Driven Climate Modelling @ UK Met Office | University of Exeter | AI, UQ, Countering mis/disinformation.
dougmcneall.com
Michael Saunby @msaunby.bsky.social Thinking is so very important.
Did I make you think?
scitools @scitools.bsky.social Iris - A powerful, format-agnostic, and community-driven Python package for analysing and visualising Earth science data.
🌐 https://github.com/scitools
Neil Kaye @neilrkaye.bsky.social Climate data scientist @metoffice specialising in generating interactive websites and bespoke #dataviz. #climate #maps #GIS #mapping #Rstats
Views are my own
Ruth Comer @ruthcomer.bsky.social 
Frenck | Home Assistant & Smart Home @frenck.social A Human. Being. Him/He. Dad. Open Sourcerer. GitHub Star 🌟
#HomeAssistant lead engineer. Passionate. Dedicated. Motto: Make a positive difference every single day. Be the change ❤
Henry Schreiner @henryiii.bsky.social Princeton RSE. Scikit-HEP, Scikit-build, PyPA/build, PyPA/cibuildwheel, pybind11, CLI11, & plumbum. Also on @henryiii@fosstodon.org and @henryschreiner3 (X).
Hamel Husain @hamel.bsky.social evals evals evals. https://evals.info
Jeremy Howard @howard.fm https://Answer.AI & https://fast.ai founding CEO; previous: hon professor @ UQ; leader of masks4all; founding CEO Enlitic; founding president Kaggle; various other stuff…
karpathy @karpathy.bsky.social AI @ OpenAI, Tesla, Stanford
PyData Global @pydata.bsky.social The PyData Global Conference is where users, contributors, and newcomers can share experiences to learn from one another and grow together. Want to meet the community? Join our Discord!
https://discord.gg/CjspHbE9xe
Dask @dask.org Dask natively scales Python
Dask provides advanced parallelism for analytics, enabling performance at scale for the tools you love
https://dask.org
MyST Markdown @mystmd.org Markdown with superpowers for writing scientific 👨🔬 and technical 📈papers. #OpenSource & maintained by Project #Jupyter.
conda @conda.org conda is a multi-platform and language-agnostic open source package management and environment management ecosystem.
⇒ https://fosstodon.org/@conda
⇒ https://conda.org/
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
Real Python @realpython.com Online #Python Training & Expert Community: Tutorials, Video Courses, Books, Quizzes...and More! Join 1M+ Pythonistas at http://realpython.com
Compute! Paris @computeparis.bsky.social 🇫🇷 The Compute! Paris conference.
November 25-26 2026 • Sorbonne Université
2i2c @2i2c.org A non-profit dedicated to helping communities create and share knowledge with open infrastructure for interactive computing. We work in the open, follow along with our blog here 👉 https://2i2c.org/blog
PyData London @pydatalondon.bsky.social https://london.pydata.org
We run a monthly meetup and host the annual PyData London conference. PyData is an educational program of NumFOCUS, helping our community share ideas and learn from each other.
https://www.meetup.com/PyData-London-Meetup/
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/
Matt Harrison @dunder-matt.bsky.social Python and data corporate trainer, author, ...
Talk Python Podcast @talkpython.fm The #1 Python-focused podcast covering the people and ideas in Python. Created and hosted by @mkennedy.codes. Get all the episodes at https://talkpython.fm/episodes/all
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
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.
Samuel Colvin @sa.muelcolvin.com Building Pydantic Logfire - uncomplicated observability for Python. Sequoia Scout.
Sebastián Ramírez @tiangolo.com Creator of @fastapi.tiangolo.com, Typer, SQLModel, Asyncer, etc 🚀
From 🇨🇴 in 🇩🇪
Open Source, APIs, and tools for data/ML 🤖
Building @fastapicloud.com ⚡️
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
Michelle Waveform, PhD @michw.com Scientist, programmer, data visualizer. Mostly ocean things, especially underwater acoustics and how sound impacts marine fauna | T1D parent & DIY Looper | Coastal NC | 🇨🇦🇺🇸
http://www.michw.com/
Max Dugan-Knight @maxduganknight.bsky.social 📈 Data and climate guy
💼 Solutions Architect at Databricks
🇨🇦 based in Toronto
✍️ maxdk.substack.com
also Arsenal ⚽️ and hip hop 🎧
Michael Kennedy @mkennedy.codes Python enthusiast and entrepreneur. Host of @talkpython.fm and @pythonbytes.fm podcasts, founder of Talk Python Training (https://talkpython.fm/courses). Python Software Foundation Fellow. Writing at https://mkennedy.codes Based in Portland, OR, USA.
Anthony Shaw @anthonypjshaw.bsky.social Technical Advisor at Microsoft. PSF Fellow. Creator of VS Code Pets and other useful software
@jamesabednar.bsky.social @jamesabednar.bsky.social 
Philipp Rüdiger @philippjfr.bsky.social 🐍Principal Software Engineer @ Anaconda
⚡Creator of Panel, Lumen AI, hvPlot & Bokeh Maintainer
🏛️ Social Democrat & Anti-Fascist
Roman Yurchak @romanyurchak.bsky.social ML engineer & Founder at Symerio.
Previously core developer Pyodide, scikit-learn.
🇺🇦
Earthmover @earthmover.io the cloud platform for weather and climate data teams
https://earthmover.io/
find us more frequently on LinkedIn: https://www.linkedin.com/company/earthmover
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.
@glemaitre58.bsky.social @glemaitre58.bsky.social 
PyCon US @pycon.us PyCon US is a community-focused conference for Python users and developers. Join us in Long Beach, CA from May 13 - May 19, 2026!
Jeremiah Lowin @jlowin.dev CEO @prefect.io. Building FastMCP. Mostly harmless.
Martin Fitzpatrick @mfitzp.bsky.social Technical adventurer. Python developer, author & maker. I make fun stuff with code, wires & glue.
Author of Create GUI Applications with Python & Qt
martinfitzpatrick.com
pythonguis.com
David Brochart @davidbrochart.bsky.social Better not to start, once begun better to finish.
Ray Bell @raybellwaves.bsky.social AI/ML product directory at the state of Maryland
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 🧪
Bill Little @billjameslittle.bsky.social software engineer @ metoffice | me.views(own)
row • eat • code • sleep
🌐 https://github.com/bjlittle
Python Bytes @pythonbytes.fm A Python podcast covering recent developer headlines. Hosted by @mkennedy.codes and @brianokken.bsky.social. Listen to all the episodes and subscribe at https://pythonbytes.fm/
Jake VanderPlas @jakevdp.bsky.social Write code. Mostly Python.
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.
Python4DataScience @python4data.science Teaching materials for the cusy training courses on a Python-based data science workflow: https://cusy.io/seminars
Ed Hawkins @edhawkins.org Climate scientist at the National Centre for Atmospheric Science, University of Reading | IPCC AR6 Lead Author | MBE | Views own | https://edhawkins.org
Warming Stripes: http://www.ShowYourStripes.info
James Powell @dontusethiscode.bsky.social 
Jim Crist-Harif @jcristharif.bsky.social 🐍 OSS
Proud Minnesotan. Jewish. Dad. He/Him.
Katy Huff @katyhuff.bsky.social Into bikes, nuclear energy, vegetables, coffee, scientific computing, & public radio. Currently a professor at UW-Madison NEEP. Former NE-1. (she/her)
fesshole 🧻 @fesshole.bsky.social Confess your sins anonymously - will the internet absolve you?
Buy show tickets 2025/6: sites.google.com/view/fesshole
Add confession b3ta.com/addfess
Buy book amazon.co.uk/s?k=very+best+of+fesshole&tag=b3ta-21
Run @robmanuel.b3ta.com
Python Software Foundation @python.org The nonprofit organization behind the Python programming language. For help with Python code: http://python.org/about/help/
On Mastodon: @ThePSF@fosstodon.org
Reimar Bauer @reimarbauer.bsky.social PSF Fellow, Maintaining Open-MSS, Mentor for GSoC, Sociocracy 3.0 
Marcelo Elizeche Landó @melizeche.com Carbon-based life form.
🐍 @python.org Fellow
🦄 DSF Member
💻 Developer @ goauthentik.io
🇵🇾 Python Paraguay
🔒 Information Security Consultant
🐈⬛ & 🐶 Pics
También se habla español :)
Reposts==Marriage proposal
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
whykay 🇮🇪🏳️🌈🦄👩🏻💻 (she/her) @whykay.bsky.social Coder, diversity in tech advocate in Ireland.
Currently: Coding Grace, PyLadies Dublin & Gamecraft.
Fellow: Python Software Foundation & EuroPython Society
Past: Women Who Code Dublin, Python Ireland, PyCon Ireland, TechFoundHer
Juan Luis @juanlu.space Posting about open source ecology, Atproto / the Atmosphere, resisting AI, y política española. Software Engineer + DevRel at Canonical. Luddite. Proudly hosted on @eurosky.social 🇪🇺
#ADHDAwareness
Vincent Maladiere @maggle.bsky.social Open source @Probabl.ai | skrub developer | interested in ML, survival analysis, causal inference, and data wrangling
Leland McInnes @lelandmcinnes.bsky.social A Mathematician dabbling in Data Science, especially unsupervised learning and data exploration. UMAP, HDBSCAN, PyNNDescent, DataMapPlot. (He/Him)
Python Conference Deadlines @pythondeadlin.es Countdowns to your favourite Python conferences with calls for participation and resources to submit awesome talks!
mborus @mborus.bsky.social 👋Hi! I'm more active on 🦣 http://mastodon.social/@mborus.
I do things with software. For ⛴️ ferry companies. Using 🐍Python & MS Dynamics NAV. I❤️🎲 board games, 🚲 cycling, 🍕🍲 cooking, 🇩🇰 🇪🇸 languages, 🇪🇺📺 Eurovision, ... Posts are in 🇬🇧/🇩🇪.
Emily Morehouse-Valcarcel @emilyemorehouse.bsky.social 
Alex Waygood @alexwaygood.bsky.social Software dev at OpenAI (formerly Astral) 🦀. Sometimes do freelance journalism: Guardian, Telegraph, openDemocracy. Python core dev in my spare time 🐍. Studied 🎶 a while back.
Andrew Kuchling @akuchling.dmv.community.ap.brid.gy #Python & SQL #developer at a healthcare startup in #WashingtonDC. Former core #Python developer.
Lives in #Bowie, #Maryland.
Reader of #books; player of […]
[bridged from https://dmv.community/@akuchling on the fediverse by https://fed.brid.gy/ ]
Donald Stufft @dstufft.dev pip // PyPI // Python // cryptography
I am perpetually caremad.
I care a lot about security.
Agitator and professional rabble rouser
Russell Keith-Magee @freakboy3742.bsky.social Not really here. Just ensuring that my handle isn't squatted.
pytest.org @pytest.org The pytest framework makes it easy to write small tests, yet scales to support complex functional testing for applications and libraries.
http://github.com/pytest-dev/pytest
Also on https://fosstodon.org/@pytest
Savannah Ostrowski @savannah.dev Python 3.16 & 3.17 Release Manager. Python Steering Council. Python Core Developer. Building @fastapicloud.com. Likes compilers, open source, film, physical computing + cats.
savannah.dev
github.com/savannahostrowski
@coredispatch.xyz