PyBay 2025

Description:

PyBay is an annual conference gathering of Pythonistas put on by the Bay Area Python Association. We’re excited to announce that we will be returning in October 2025, to the UCSF Mission Bay Conference Center in San Francisco, CA. This event is 100% community organized. Python Software Foundation is to promote, protect and advance the Python programming language, and to support and faciliate the growth of a diverse and international community of Python Programmers. PyLadies international mentorship group with a focus on helping more women become active participants and leaders in the Python open-source community.

Notes:

Glyph Lefkowitz | Glyph 10:30AM SPEAKER

• Scaling Open Source UP and Down: Software isn't finished until the last user is dead. PINPal,
• Medium Projects: Pemodouroboros, DateType, Publication, Automat, Hyperlink...
• Big Project: Twisted, Twisted Org Projects...Baseline Project.

Alla Barbalat | Company 11:00AM SPEAKER

• AI, IP, and Your Code: What Developers Need to Know Interlectual Property (IP) Law, Copyright law implication of AI-generated code.
• IP has various terms of expiration before becoming public domain: Trademark, Patent, Copyright
• Software Code Licensing: Proprietary, Public Domain, Copyleft, Permissive Open Source. MIT or APACHE license is free and open use of code.
• Market from LLM, COPY right cases for developers different than chemical, biological, or physical patenting.
• Check AI-Generated Code, licensing issues, public code, code evaluation tools for CI/CD.

Daniel Hulse | NASA Ames Research Center 11:30AM SPEAKER

• Architecting Real-World Complex Systems in Python multidisciplinary physical and cyber-physical interactions (5th Domain) design, integrate, and manage complex systems in various life cycles phases that last for generations compatible with an evolving system over various generations.
• Simply understanding--let alone designing--complex systems can be tricky. Traditionally, systems engineering approaches have relied on clunky, proprietary, opaque tools to model, analyze, and design system structure and behavior.
• Model-base Systems Engineering and Digitial Twin / Threads; proprietary software, new information silo, python for engineering analysis.

Brett Slatkin | Google 11:45AM SPEAKER

• Do It Yourself: Demystifying the Magic of Dataclasses Python's built-in dataclasses module provides an enormous amount of leverage when defining classes: minimal code can enable maximal capabilities.
• DataClass AWARENESS boilerplate uses for _init_ (caution for typos), key-only arguments, attribute with a referential default value, string conversion (default behavior), tuple conversion

Guido van Rossum | Microsoft 12:30PM / 12:30 SPEAKER

• Structured RAG is better than RAG! This is an improvement over the popular AI tactic named RAG (look it up) that can answer questions over large collections of text or images better and faster than RAG.
• Extracts Knowledge: entities (people, places, etc..), actions, topics, relationships, etc... Structure RAG - Query Pipeline.
• Scalable to much larger conservation histories: indexing approach needs less compute and data. Bulk ingestion is slower, due to use of an LLM instead of just embeddings.
• Transcripts, RAG, OpenAI, typeagent
• Example: Albatross Sea bird

Maggie Moss | Meta 3:30PM / 16:30 SPEAKER

• Increasing Types in Large Codebases with Pyrefly and AI Tooling Meta has some of the largest typed Python codebases in the world. That’s why we built Pyre and now Pyrefly. Despite this, Meta has lots of untyped code and we have been building tooling to help add types at scale.
• Rails Developer, Faster inner loop, Spot typos, better documentation, write code faster (auto-completion)
• Brief History of META Type Checkers; PHP -> Hack, Javascript -> Flow, Python -> Pyre. OCaml was considered.
• PyCon lauch, PYREFLY incredible performance. Type checker is incredibly easy to install, implement and use. Configuration, Silence Errors (pyrefly check --supress-errors, --ignore, --summarize), automatically infers annotations to the code, pairs with open source tools.
• MCP-PYREFLY; the Lollipop System

Pamela Fox | Microsoft 4:15PM / 16:30 SPEAKER

• Just because AI can write your tests... should it? I'm a big fan of AI-assisted coding tools—they’re making programming more accessible than ever! But as developers, we risk using LLMs to write everything, including our tests, and forgetting the powerful tools in our Python testing toolbox.
• Native California Plant gardener, AI writes developer tests, Honey Bee #WooHon #Xpresso

Nikita Rokotyan | Exaforce 6:00PM / 18:00 SPEAKER

• Visualizing large graphs and AI embeddings with ease Cosmograph, a high-performance web framework for creating interactive graph visualizations, is now accessible to Python engineers directly from their notebooks!
• CosmoApp Engage with your data, Right in the browser on your laptop.
• A web-based application that helps you analyze large graph datasets or machine learning embeddings. It runs purely in the browser and doesn't send your data anywhere. All calculations will be done right on your GPU, the faster it is the better.

Chris Brousseau | Surface Owl 6:30PM / 18:30 SPEAKER

• Closing Remarks Join us to wrap up the PyBay 2025 Conference, hear about the day and important messages from a few guest speakers.

Resources:

• Speaker Link List with the Daily Agenda
• Woman Who Code are an additional community members
• Instalily is the first platform for hiring vertical AI Teammates, called InstaWorkers™:
  • InstaWorkers™ help human teams achieve superhuman outcomes at scale: increased revenue, reduced costs, and improved service.

Contact:

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