Topics covered in this episode: Starlette 1.0.0 Astral to join OpenAI uv audit Fire and forget (or never) with Python’s asyncio Extras Joke Watch on YouTube About the show Sponsored by us! Support our work through: Our courses at Talk Python Training The Complete pytest Course Patreon Supporters Connect with the hosts Michael: @[email protected] / @mkennedy.codes (bsky) Brian: @[email protected] / @brianokken.bsky.social Show: @[email protected] / @pythonbytes.fm (bsky) Join us on YouTube at pythonbytes.fm/live to be part of the audience. Usually Monday at 11am PT. Older video versions available there too. Finally, if you want an artisanal, hand-crafted digest of every week of the show notes in email form? Add your name and email to our friends of the show list, we'll never share it. Brian #1: Starlette 1.0.0 As a reminder, Starlette is the foundation for FastAPI Starlette 1.0 is here! - fun blog post from Marcello Trylesinski “The changes in 1.0 were limited to removing old deprecated code that had been on the way out for years, along with a few bug fixes. From now on we'll follow SemVer strictly.” Fun comment in the “What’s next?” section: “Oh, and Sebastián, Starlette is now out of your way to release FastAPI 1.0. 😉” Related: Experimenting with Starlette 1.0 with Claude skills Simon Willison example of the new lifespan mechanism, very pytest fixture-like @contextlib.asynccontextmanager async def lifespan(app): async with some_async_resource(): print("Run at startup!") yield print("Run on shutdown!") app = Starlette( routes=routes, lifespan=lifespan ) Michael #2: Astral to join OpenAI via John Hagen, thanks Astral has agreed to join OpenAI as part of the Codex team Congrats Charlie and team Seems like **Ruff** and uv play an important roll. Perhaps ty holds the most value to directly boost Codex (understanding codebases for the AI) All that said, these were open source so there is way more to the motivations than just using the tools. After joining the Codex team, we'll continue building our open source tools. Simon Willison has thoughts discuss.python.org also has thoughts The Ars Technica article has interesting comments too It’s probably the death pyx Simon points out “pyx is notably absent from both the Astral and OpenAI announcement posts.” Brian #3: uv audit Submitted by Owen Lemont Pieces of uv audit have been trickling in. uv 0.10.12 exposes it to the cli help Here’s the roadmap for uv audit I tried it out on a package and found a security issue with a dependency not of the project, but of the testing dependencies but only if using Python < 3.10, even though I’m using 3.14 Kinda cool Looks like it generates a uv.lock file, which includes dependencies for all project supported versions of Python and systems, which is a very thorough way to check for vulnerabilities. But also, maybe some pointers on how to fix the problem would be good. No --fix yet. Michael #4: Fire and forget (or never) with Python’s asyncio Python’s asyncio.create_task() can silently garbage collect your fire-and-forget tasks starting in Python 3.12 Formerly fine async code can now stop working, so heads up The fix? Use a set to upgrade to a strong ref and a callback to remove it Is there a chance of task-based memory leaks? Yeah, maybe. Extras Brian: Nobody Gets Promoted for Simplicity - interesting read and unfortunate truth in too many places. pytest-check - All built-in check helper functions in this list also accept an optional xfail reason. example: check.equal(actual, expected, xfail="known issue #123") Allows some checks to still cause a failure to happen because you no longer have to mark the whole test as xfail Michael: TurboAPI - FastAPI + Pydantic compatible framework in Zig (see follow up) Pyramid 2.1 is out (yes really! :) first release in 3 years) Vivaldi 7.9 adds minimalist hide mode. Migrated pythonbytes.fm and talkpython.fm to Raw+DC design pattern Robyn + Chameleon package Joke: We now have translation services

Ask this episode

“What did the council decide on item 42?” — answered with the speaker and the moment.