PyCon US
PyCon US is the largest annual gathering for the community that uses and develops the open-source Python programming language. It is a conference produced and underwritten by the Python Software Foundation (https://www.python.org/psf/)
PyCon US (https://us.pycon.org/2025/) is organized by the Python community for the community. We try to keep registration far cheaper than most comparable technology conferences to make PyCon US accessible to the widest group possible. PyCon US is a diverse conference dedicated to providing an enjoyable experience to everyone.
Our code of conduct is intended to help everyone maintain the PyCon US spirit. We thank all attendees and staff for observing it: https://policies.python.org/us.pycon.org/code-of-conduct/.
Keeping up with Python: what makes upgrades hard, and what can we do about it - Jason Fried
Bridging IoT and Machine Learning with Python for Sustainable Agriculture
What's New in the Linux Kernel... from Python - Geoffrey Thomas
The chaotic locals() and how we fixed it - Tian Gao
Metaclasses Demystified - Jason C. McDonald
A new safe external debugger interface for CPython - Pablo Galindo Salgado & Ivona Stojanovic
PyXL: A Chip That Runs Python at Turbo Speeds - Ron Livne
Supercharge your Python library using AST parsing - Adam Glustein
Type Hints in Real-World Projects: Practical Steps for Continuous Maintenance and Improvement
Program Your Own Computer in Python - Glyph
PyCon US 2025 Closing
Python Software Foundation Update & Awards
Python Steering Council - Barry Warsaw, Donghee Na, Gregory P Smith & Pablo Galindo Salgado
PSF - Update from our Security Engineers
Keynote - The Marshall Project
Keynote Speaker - Dr. Kari L. Jordan
Cheese Must Stand: Defending the Python Library Ecosystem in 2025 - Patrick Smyth & Srishti Hegde
One Year In: Insights and Inspiration from my PSF Journey - Jacob Coffee
How two teams are working together to make Python better for all - Michael Droettboom, Dino Viehland
Schemas: The Key To Data Happiness - Sev Leonard
Building Resilient Data Pipelines: The Power of Idempotency - Mihir Kavatkar
From Desktop to Browser: Crafting Browser-Native Game Engine with Webassembly - Neeraj Pandey
Tips and Tricks for JSON Web Tokens (JWTs) - Emin Martinian
Safeguard your precious API endpoints built on FastAPI using OAuth 2.0 - Semona Igama
Unraveling Community Support For Free-Threaded Python - Lysandros Nikolaou & Nathan Goldbaum
Using Rust in Free-Threaded vs Regular Python 3.13 - David Hewitt
Building a NoGIL Load Balancer in 30 minutes - Alvaro Duran
The past, present, and future of virtual environments - Zanie Blue
Taming file zoos: Data science with DuckDB database files - Alex Monahan
Processing large JSON files without running out of memory - Itamar Turner-Trauring