

What we’re about
PyData is an educational program of NumFOCUS, a 501(c)3 non-profit organization in the United States. PyData provides a forum for the international community of users and developers of data analysis tools to share ideas and learn from each other.
The global PyData network promotes discussion of best practices, new approaches, and emerging technologies for data management, processing, analytics, and visualization. PyData communities approach data science using many languages, including (but not limited to) Python, Julia, and R.
The PyData Code of Conduct governs this meetup. To discuss any issues or concerns relating to the code of conduct or the behavior of anyone at a PyData meetup, please contact NumFOCUS Executive Director Leah Silen (+1 512-222-5449; [leah@numfocus.org](mailto:leah@numfocus.org)) or the group organizer.
We run monthly meetups at changing locations and have organized six conferences, in 2014, 2015, 2016, 2017, 2019, and 2022. You can see our latest meetups, submit a talk idea and read PyData blog posts on our site : https://berlin.pydata.org.
Please get in touch using info@pydata.berlin.
Twitter: @pydataberlin
Upcoming events
1

PyData Berlin 2025 November Meetup
Ecosia, 13347 Gerichtstrasse 23, Berlin, DEWelcome to the PyData Berlin November meetup!
We would like to welcome you all starting from 18:30. There will be food and drinks. The talks begin around 19.30 and the doors will close at 19:30. Make sure to arrive on time!
Please provide your first and last name for the registration because this is required for the venue's entry policy. If you cannot attend, please cancel your spot so others are able to join as the space is limited.
Host: Ecosia is excited to welcome you to this month's version of PyData.
Entrance is in Hof 4 - there will be signs - then up to the 3rd floor of the building.
**************************************************************************
The Lineup for the evening
Talk 1: The Zen of Claude Code
Abstract: This talk traces the evolution of AI agents from the ambitious but complex AutoGPT experiment in 2023, through Cursor's gradual "autonomy slider" approach (2023-2025), to the elegant simplicity of Claude Code in 2025. The presentation argues that we've moved from highly complex systems with multiple agents, embeddings, and cloud infrastructure that, while groundbreaking, often struggled with basic tasks, to "The Zen of Claude Code": a simple terminal-based agent that achieves excellent performance by embracing the bitter lesson.Speaker: Vlad Gheorghe
Bio: Vlad is an AI Engineer based in Berlin who builds production AI systems and teaches others to do the same. He's currently building SceneMind.ai, a suite of AI tools for movie producers. His YouTube course on SQL has 338k views, and he's created several open-source MCP servers including PDF Agent MCP. Previously, he scaled data platforms at Delivery Hero and other Berlin companies, processing billions of records daily. He's fascinated by the evolution of AI agents and believes the best tools are often the simplest ones.---
Talk 2: Functional Reproducibility
Abstract: Have you ever written the perfect data analysis?
Has it still run unchanged 6 months later?
Can your colleagues run it without you?
Just because your analysis is executable, it doesn’t mean the results are reproducible.
Data ages.
Libraries change.
Machines differ.
Servers go down.
Bits rot.
Entropy is inescapable.
We can learn how to engineer reproducibility by drawing on techniques from functional programming and the MLOps movement.Speaker: Robin Gower
Bio: Robin is freelance data scientist, software engineer and economic analyst. He helps teams build products that let people take decisions with data.When he's not deleting notebooks, Robin can be found digging in the garden or down in the cellar brewing ale.
---
Lightning talks
There will be slots for 2-3 Lightning Talks (3-5 Minutes for each).
Kindly let us know if you would like to present something at the start of the meetup :)***
NumFOCUS Code of ConductTHE SHORT VERSION
Be kind to others. Do not insult or put down others. Behave professionally. Remember that harassment and sexist, racist, or exclusionary jokes are not appropriate for NumFOCUS.
All communication should be appropriate for a professional audience including people of many different backgrounds. Sexual language and imagery are not appropriate.
NumFOCUS is dedicated to providing a harassment-free community for everyone, regardless of gender, sexual orientation, gender identity, and expression, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of community members in any form.
Thank you for helping make this a welcoming, friendly community for all.If you haven't yet, please read the detailed version here: https://numfocus.org/code-of-conduct
***100 attendees
Past events
133
