#114 ty: Fast Python Type Checking with Carl Meyer

Excitement around Python type checking continues to grow and the tools continue to evolve. We chat with Aaron Pollack and Steven Troxler about ⁠Pyrefly - a Rust-based Python type checker and IDE extension. We also touch on the adoption and sentiment around types in Python's ecosystem.Resources:Pyrefly DiscordPackage Type Coverage ReportPackages being tracked for moving types from typeshed to the source projectTyping Survey SlidesBlog post with survey analysisPython typing community forumMCP PyreflyDiscuss this episode: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠discord.gg/XVKD2uPKyF⁠⁠

Carl Meyer works on the ty Python type checker, built in Rust by Astral the creators of Ruff and uv. We chat about type systems, the evolution of static typing in Python, and the focus on performance.Resources:Richard Feldman: Roc compiler moving from Rust to ZigDiscuss this episode: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠discord.gg/XVKD2uPKyF⁠⁠

We chat with Jennifer Reif about integrating LLMs with data using RAG, vectorized data, and Graph databases.Discuss this episode: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠discord.gg/XVKD2uPKyF⁠⁠

Rod Johnson, creator of the Spring Framework, has created a JVM-based AI Agent framework called Embabel. We dive in and learn how enterprises can build more reliable Agents using deterministic planning and domain-driven orchestration.Discuss this episode: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠discord.gg/XVKD2uPKyF⁠⁠

We chat with Steve Manuel (of dylibso.com and mcp.run) about LLM "plugins" with Wasm & MCP (Model Context Protocol).Discuss this episode: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠discord.gg/XVKD2uPKyF⁠⁠

Justin Reock has spent a lot of his career thinking about how to help developers be more productive. In this episode we learn about the methodologies that can help developers spend more time in "flow state" - happily coding the fun stuff. Further reading: Measuring developer productivity with the DX Core 4 Discuss this episode: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠discord.gg/XVKD2uPKyF⁠⁠

Lize Raes teaches us about AI models, LLMs, Tools, Agents, and MCP.Article from Anthropic on Agent architectures: Building effective agentsDiscuss this episode: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠discord.gg/XVKD2uPKyF⁠⁠

Join us at the 2025 Winter Tech Forum! www.wintertechforum.com Projects Mentioned: uv for Python TypeScript Effect Pkl CloudFormation Extras Pkl GitHub Actions Other Episodes Mentioned: #81 TypeScript & Effects with Michael Arnaldi #97 The Pkl Configuration Language with Philip Hölzenspies

We chat with Dave Thomas, co-author of The Pragmatic Programmer, about the joy of programming and the tensions between our and others needs. Discuss this episode: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠discord.gg/XVKD2uPKyF⁠⁠

Jutta Eckstein is expanding the concepts of Agile to be a company-wide model, instead of a niche process for software developers. We chat with her about the book "Company-wide Agility with Beyond Budgeting, Open Space & Sociocracy" which she co-authored on this subject. For more details on the book and many free resources, see: www.agilebossanova.com Discuss this episode: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠discord.gg/XVKD2uPKyF⁠⁠