Episodi

  • #483 Thanks Brian
    Jun 9 2026
    Topics covered in this episode: Vulnerability and malware checks in uvHTTP GET requests with the Python standard libraryMillions of AI agents imperiled by critical vulnerability in open source packagealembic-git-revisionsExtrasJokeWatch on YouTube About the show Goodbye and Thanks Brian Thanks Calvin for being part of this and future episodes! Also new time for the live show. Thanks Brian for all the hard work over the years. Calvin #1: Vulnerability and malware checks in uv release just yesterday by Astral https://astral.sh/blog/uv-audituv audit scans dependencies for known vulnerabilities and abandoned packages via the OSV database — runs 4–10x faster than pip-auditMalware check runs on every install/sync, catching actively malicious packages (credential stealers, etc.) before they execute — including ones PyPI quarantined but lockfiles can still referenceEnable malware scanning with UV_MALWARE_CHECK=1 — it's opt-in and in previewFuture roadmap includes a resolver that steers toward vulnerability-free versions and install-time warnings scoped to newly added deps only Michael #2: HTTP GET requests with the Python standard library If you’re doing HTTP in Python, you’re probably using one of three popular libraries: requests, httpx, or urllib3.There have been issues with httpx lately.Niquest is another option: Drop-in replacement for Requests. Automatic HTTP/1.1, HTTP/2, and HTTP/3. WebSocket, and SSE included.But maybe less is more, especially in the age of agentic AIA good candidate needs two things to be true at once, not one: the used surface is small, and the behavior behind that surface is shallow. Calvin #3: Millions of AI agents imperiled by critical vulnerability in open source package "BadHost" (CVE-2026-48710) is a critical vulnerability in Starlette — the ASGI framework underlying FastAPI — with 325 million weekly downloads; also affects vLLM, LiteLLM, and most MCP server toolingThe exploit is trivial: injecting a single character into an HTTP Host header bypasses path-based authentication, and can lead to credential theft, SSRF, and in some cases remote code executionMCP servers are a prime target since they store credentials for external services (email, databases, cloud accounts) — exposed data in the wild includes biopharma clinical trial DBs, full mailboxes, HR/PII pipelines, and AWS topologyFix is available — patch to Starlette 1.0.1 immediately; use the free scanner at mcp-scan.nemesis.services to check if your servers are still running a vulnerable versionOpen source sustainability footnote: the maintainer triages near-daily security reports solo, in his free time — most are AI-generated noise, and real ones like this still compete for the same evenings and weekends Michael #4: alembic-git-revisions By Julien Danjou from MergifyAutomatic Alembic migration chaining based on git commit history. No more Multiple head revisions are present for given argument 'head'.See the introductory articleCaused by two migrations landed with the same down_revision, and Alembic doesn’t know which one comes first. The fix is always the same: someone manually edits the migration file to re-chain the revisions.The insight: git already knows the order Extras Calvin: GNU make can do pattern matching in the target. Not new at all, mentioned in the 1994-era docs. just and task don’t have this super power on the target name yet. train-%: uv run ./train.py $* --save-hyper-params --overwrite $(TRAIN_ARGS) Michael: Updated my HTTP client using packages from httpx to httpx2: listmonk, umami, and memberful. For motivation, see this reddit thread. Joke: Accurate
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    29 min
  • #482 Mr. Beast's episode
    Jun 1 2026
    Topics covered in this episode: CVE-2026-48710: A Maintainer's Perspectivedaily-stars-explorerMarkdown to pdf with pandoc and typstpostman2pytestExtrasJokeWatch on YouTube About the show Brian #1: CVE-2026-48710: A Maintainer's Perspective Marcelo Trylesinskisuggested by Lee LuocksShort version: users of Starlette: upgrade to Starlette 1.0.1security professionals: we can’t treat open source projects like corporationsThis top link is a Starlette security advisory with the title Missing Host header validation poisons request.url.path, bypassing path-based security checksThe CVE apparently caused some negative press targeting starlette.However, “the vulnerability came from the application pattern and the deployment, never from something Starlette intended.”A quote from an OSTIF article: “This bug is a classic “responsibility gap” where if this maintainer didn’t patch, thousands of exposed projects would have to individually secure their projects. In doing this work, they’ve voluntarily taken on the responsibility to protect the ecosystem from long-term systemic harm. As with all open source projects, they owed us nothing and could have left this to be everyone else’s problem and took the extraordinary steps of helping the ecosystem.”Both X40 D-Sec and Ars Technica expected immediate fixes and responses from Starlette.That’s not good. We can do better. Michael #2: daily-stars-explorer Explore the full history of any GitHub repository.📈 Full Star History - Complete daily star counts for any repo⏰ Hourly Stars - Hour-by-hour activity with timezone support🔀 Compare Repos - Side-by-side comparison of any two repositories📊 Activity Timelines - Commits, PRs, Issues, Forks, Contributors over time📌 Pin Favorites - Bookmark repos for quick access without retyping📰 Feed Mentions - See when repos were mentioned on HN, Reddit, YouTube, GitHub💾 Export Data - Download as CSV or JSON🌙 Dark Mode - Easy on the eyesTry/use it online at emanuelef.github.io/daily-stars-explorer or install it for yourself. Brian #3: Markdown to pdf with pandoc and typst typst suggestion from Matt HarrisonMarkdown is awesomePandoc is great for converting markdown to tons of stuff but for pdf, it goes through LaTeX, which is … yuk (my opinion)Pandoc also can convert to typstAnd typst creates beautiful pdfs and is way easier (my opinion) to deal with than LaTeX.New tools brew upgrade pandocbrew install typstNow convert pandoc something.md --to typst -o something.typtypst compile something.typ something.pdf Michael #4: postman2pytest via MikhailBased on postman appConvert Postman Collection v2.1 JSON into executable pytest test suitesPostman collections document your API. postman2pytest turns that documentation into executable regression tests that run in CI. No manual rewriting, no drift. Extras: New blog, who dis? - testandcode.org is now on .org and a blog and soon to be a “publisher”. Joke: Centering a div
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    24 min
  • #481 Ways to die
    May 25 2026
    Topics covered in this episode: Dumb Ways for an Open Source Project to DieHow to create a pylock.toml lockfilehttps://github.com/facebook/LifeguardChoosing a Python Logging Library in 2026ExtrasJokeWatch on YouTube About the show Sponsored by us! Support our work through: Our courses at Talk Python TrainingThe Complete pytest CoursePatreon Supporters Connect with the hosts Michael: @mkennedy@fosstodon.org / @mkennedy.codes (bsky)Brian: @brianokken@fosstodon.org / @brianokken.bsky.socialShow: @pythonbytes@fosstodon.org / @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. Michael #1: Dumb Ways for an Open Source Project to Die Core categories The maintainer leftThe maintainer is still thereSabotage and captureThe release pipeline brokeForce majeureThe world moved onThe project split - Examples Bulma PRs still from 2023, issues and PRs with no maintainer response for years, last release 1.5 years agodiskcache Similar, got hired by OpenAI, crickets after that Brian #2: How to create a pylock.toml lockfile Tim HopperTim walks through using uv, pip and pdm to create pylock.toml files.Recommendation: use uv export --format pylock.toml -o pylock.tomlHe also has How to install from a pylock.toml lockfile with pip but the short version is: use -r because tools treat it like a requirements file Michael #3: https://github.com/facebook/Lifeguard Lifeguard is a static analyzer to detect Lazy Imports incompatibilities and ease the adoption overhead for Lazy Imports in Python.I’m more excited about lazy imports after my Cutting Python Web App Memory Over 31% experienceSome Python patterns depend on imports executing immediately. For example: Module-level side effects — a module that registers a handler or modifies global state at import time will behave differently if that import is deferred.The registry pattern — a module that registers itself (e.g., adding to a global dict) when imported will silently fail to register under Lazy Imports.sys.modules manipulation — code that reads or writes sys.modules assumes prior imports have already executed.Metaclasses and __init_subclass__ — class creation side effects may depend on imports being resolved.Project Stage: Beta Lifeguard is in active development. We are aiming to be ready for general use by the Python 3.15 final release. Brian #4: Choosing a Python Logging Library in 2026 Ayooluwa Isaiah" which libraries matter, how they compare, where they overlap with the standard module, and when each one makes sense.”The slant with this article is the need to log json output, which seems reasonable as things like API entry and exit point logging will include json.Covered libraries standard library logging with a hat tip to python-json-logger Same site has a guide to setting up python-json-loggerstructlogLoguruLogbookpicologgingSome benchmarks with structlog, stdlib+json, and Loguru, with structlog coming out fasterI liked the Loguru example I’m going to have to try @logger.catch and logger.exception() for easily logging exceptions and serialize=True to enable JSON output. Extras Brian: When Women Stopped Coding - Planet Money segment , spotted on BlueSky from Savannah OstrowskiLean TDD is now leaner Still working on audio version, but some great changes in 0.7.1 version Ch 6, TDD Interpretations, move ATDD and some of BDD to chapterCh 7, Change name to TDD with Teams: BDD and ATDDCh 9, Lean TDD, streamline steps and chapterCh 10, Change name to Lean TDD with Teams: Lean ATDDCh 11, Lean TDD with AI, Add short discussion about guardrails and security Michael: New course: Python Web Security: OWASP Top 10 with Agentic AIAll courses now with Spanish subtitles, see announcement Joke: Stop texting me
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    33 min
  • #480 Proud Parents
    May 18 2026
    Topics covered in this episode: Using Django Tasks in productionCo-authored with Claude?PyPI packages are increasing rapidlyhttpx2ExtrasJokeWatch on YouTube About the show Sponsored by us! Support our work through: Our courses at Talk Python TrainingThe Complete pytest CoursePatreon Supporters Connect with the hostsMichael: @mkennedy@fosstodon.org / @mkennedy.codes (bsky)Brian: @brianokken@fosstodon.org / @brianokken.bsky.socialShow: @pythonbytes@fosstodon.org / @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: Using Django Tasks in production Tim Schilling shares how the Djangonaut Space website has been using Django’s new tasks framework and some of the info missing from the official Django docs.Tasks require a third party package, django-tasks-db to actually run the tasks.Article walks through all changes necessary to get an email process running to notify admins of new testimonials. Cool simple example.With the db backend, you can monitor progress of tasks in the admin, to see which tasks are scheduled, completed, or have errors.Some wishes for the community to implement new tutorial in the Django docsDjango Debug toolbar panel for taskstest/mock backendGreat title for wish list: Thinks I’d like to see, but I’m too lazy to implement myself. Michael #2: Co-authored with Claude? Via Nik T.We don’t put “executed on macOS”, “edited with PyCharm”, etc. in our commits. Why Claude?Seems like a growth hack to me, that I don’t really care to participate in.Some projects that have formalized their thoughts on this: The Generative AI Policy Landscape in Open SourceAdjust to turn off in ~/.claude/settings.json see the docs. { "attribution": { "commit": "", "pr": "" } } Brian #3: PyPI packages are increasing rapidly Artem GolubinThere’s been an increase of published packages per week on PyPIA pretty big increase in the last handful of months.30% increase since 2025, clearly due to AIArtem is building hexora, a malicious Python code detector.Cool package too, it can: Audit project dependencies to catch potential supply-chain attacksDetect malicious scripts found on platforms like Pastebin, GitHub, or open directoriesAnalyze IoC files from past security incidentsAudit new packages uploaded to PyPi.Artem is using hexora to analyze recently published pypi packages and many are obviously vibecoded and trigger false positives for abuses of eval, exec, and subprocess Side note: I don’t think that’s necessarily a false positive. Not malicious, but maybe a stupid-code-detector?Lots are LLM related, Lots have bots contributing codePublishing rate is crazy, dozens to hundreds of published versions in a day is a bug, not a featureBrian’s proposal, PyPI should limit releases per day for any package to something a sane human would do, even if they make a mistake on a release, to maybe like 2-3, definitely under 10, in a day. And if the repo has obvious agent contributors listed, maybe lower to the limit to 1-2 a day? Honestly, “move fast and break things” doesn’t apply to breaking the commons. Michael #4: httpx2 More on the httpx, httpxyz, etc changes: Pydantic people started their own fork, httpx2.Michiel says “while we think httpxyz was definitely needed, we welcome httpx2 and think it should be the ‘blessed’ fork.”Kludex, who is among other things maintainer of Starlette, was considering a forkAs it stands, httpx2 is lacking the performance improvements they added to httpxyz. But it will not be long before they will add those, too.Also they already made some smart decisions: they are switching from certifi to truststorethey are switching to compression.zstd on Python 3.14+, enabling zstd compression by defaultthey merged httpcore and vendored it in their repositoryDiscussion on Hacker News Extras Brian: The Four Horsemen of the LLM Apocalypse - AnarcatDjango/JetBrains 2026 developer survey is openPyrefly 1.0 : “meaning we are confident that Pyrefly is ready for production use.” Michael:Just about ready to release Python Web Security: OWASP Top 10 with Agentic AI course. Be sure to be on the courses newsletter to get notified. Joke: Proud Parents
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    33 min
  • #479 Talking About Types
    May 11 2026
    Topics covered in this episode: httpxyz one month inLearn concurrency - a deep dive into multithreading with Pythonpip 26.1 - lockfiles and dependency cooldownsPython 3.15 sentinal values from PEP 661ExtrasJokeWatch on YouTube About the show Sponsored by us! Support our work through: Our courses at Talk Python TrainingThe Complete pytest CoursePatreon Supporters Connect with the hosts Michael: @mkennedy@fosstodon.org / @mkennedy.codes (bsky)Brian: @brianokken@fosstodon.org / @brianokken.bsky.socialShow: @pythonbytes@fosstodon.org / @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. Michael #1: httpxyz one month in First version of httpxyz contained just the fixes to get zstd working, and the fixes to get the test suite running on python 3.14, some ‘housekeeping’ changes related to the renamingEnd of March: a compatibility shim that allows you to use httpxyz even with third-party packages that import httpx themselves, as long as you import httpxyz first. Importing httpxyz automatically registers it under the httpx name in sys.modules , see https://httpxyz.org/httpx-compatibility/Fixed a WHOLE bunch of performance related issues by forking httpcore Brian #2: Learn concurrency - a deep dive into multithreading with Python Nikos Vaggalis“Whenever you are trying to speed up code using multiple cores, always ask yourself: “Do these threads need to talk to each other right now?” If the answer is yes, it will be slow. The best parallel code splits a big job into completely isolated chunks, processes them separately, and merges the results at the finish line.”Good overview of thread concurrency with Python and how that’s been improved dramatically with free-threaded PythonDefines lots of terms you come across, including “embarrassingly parallel multithreading”There’s a counter example that’s nice Start with a shared resource, a counter, and multiple threads updating itAttempt to fix with threading.Lock(), which fixes it, but slows things downGood explanation of whyProper fix with concurrent.futures and separating the work of different threads so that they can be independent and their results can be combined when they’re all finished. Michael #3: pip 26.1 - lockfiles and dependency cooldowns Python 3.9 is no longer supportedExperimental: installing from pylock filesDependency cooldowns (see my post about this)Lifting several 2020 resolver limitations Brian #4: Python 3.15 sentinal values from PEP 661 MISSING = sentinel("MISSING") def next_value(default: int | MISSING = MISSING): ... if default is MISSING: ... Take a name str as a constructor parameterIntended to be compared with is operator, similar to NoneSentinal objects can be used as a type, also similar to None and can be combined with other types with |.Unlike None, sentinal values are truthy. (Elipses ... are also truthy) This seems like a strange choice. but I guess it must have made sense to someone.It does force you to use is instead of depending on False-ness, so I guess it’ll make code using sentinels more readable.Interesting that the PEP was started in 2021, and we’re finally getting it this year. Extras Brian: Before GitHub - Armin Ronachertenacity - cross-platform multi-track audio editor/recorder learned about it from Armin’s article Joke: Joke option Make it myself Seems similar to what people think about software now Links httpxyz one month inhttpxyz.org/httpx-compatibilityLearn concurrency - a deep dive into multithreading with Pythonpip 26.1 - lockfiles and dependency cooldownsmy post about thisPython 3.15 sentinal values from PEP 661Before GitHubtenacityMake it myself
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    36 min
  • #478 Iodine tablets and potable water
    May 4 2026
    Topics covered in this episode: profiling-explorerReverting the incremental GC in Python 3.14 and 3.15VSCode AI Co-author defaults to on, then offdjango freezeExtrasJokeWatch on YouTube About the show Sponsored by us! Support our work through: Our courses at Talk Python TrainingThe Complete pytest CoursePatreon Supporters Connect with the hosts Michael: @mkennedy@fosstodon.org / @mkennedy.codes (bsky)Brian: @brianokken@fosstodon.org / @brianokken.bsky.socialShow: @pythonbytes@fosstodon.org / @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: profiling-explorer Adam JohnsonAnd intro post Python: introducing profiling-explorer“profiling-explorer is a tool for exploring profiling data from Python’s built-in profilers, which are stored in pstats files. ”Features Dark modeClick the calls, internal ms, or cumulative ms column headers to sort by that column.Use the search box to filter by filename or function name.Hover by a filename + line number pair to reveal the copy button, which copies the location to your clipboard for faster opening.Click the callers or callees links on the right of a row (not pictured above) to see the callers or callees of that function. Michael #2: Reverting the incremental GC in Python 3.14 and 3.15 Python 3.14 shipped with a new incremental garbage collector, but production reports of severe memory pressure (Neil Schemenauer measured up to 5× peak RSS on pathological cyclic workloads) have pushed the core team and Steering Council to revert it in both 3.14 and 3.15 - returning to the 3.13-era generational GC.This is the second time the inc GC has been pulled back: it was also reverted right before 3.13.0 final, and it shipped in 3.14 without going through the PEP process.The tradeoff is real: Neil's benchmarks showed max GC pause times of 1.3ms with inc GC versus 26ms with the generational one - great for latency-sensitive apps, terrible for memory-constrained ones.Release manager Hugo van Kemenade will ship 3.14.5 early with the revert, and Gregory Smith floated the idea of a 3.14.5rc1 - the first patch-release RC since 3.9.2 back in 2021.Tim Peters spent the thread doing live forensics on Windows, running a toy deque program that should cap at 1GB and watching it balloon to 15.6GB on a 16GB machine - and discovered the gen0 collector effectively never fires under the new scheme.Tim's bigger meta-point: CPython has a chronic shortage of real-world GC benchmarks, pyperformance has "basically no interesting" cyclic workloads, and users almost never share real data - so core devs keep flying blind on changes like this.Django maintainer Adam Johnson published a blog post mid-thread documenting a real memory "leak" in Django's migration system caused by inc GC, with a manual gc.collect() workaround - the listener-facing receipt that this wasn't just theoretical.If the inc GC comes back for 3.16, it'll go through a proper PEP, and the discussion is already shifting toward keeping both collectors available via a startup flag - which Neil and Sergey Miryanov have both prototyped. Brian #3: VSCode AI Co-author defaults to on, then off VSCode merges Enabling ai co author by default - 3 week agoTon’s of “why would you do this” and related commentsVSCode merges Change default for git.addAICoAuthor to off - yesterdayTake-away, don’t rely on default, set addAICoAuthor to off yourself Michael #4: django freeze Convert your dynamic django site to a static one with one line of code.Just run python manage.py generate_static_site :)Features Generate the static version of your Django site, optionally compressed .zip fileGenerate/download the static site using urls (only superuser and staff)Follow sitemap.xml urlsFollow internal links founded in each pageFollow redirectsReport invalid/broken urlsSelectively include/exclude media and static filesCustom base url (very useful if the static site will run in a specific folder different by the document-root)Convert urls to relative urls (very useful if the static site will run offline or in an unknown folder different by the document-root)Prevent local directory index Extras Brian: Thinking Less, Trusting More: GenAI’s Impacts on Students’ Cognitive Habits Michael: Vercel breached, employee to blameIntroducing the new Talk Python web playerGitHub uptime (a couple of views 1, 2) Joke: Friends in tech
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    40 min
  • #477 Lazy, Frozen, and 31% Lighter
    Apr 20 2026
    Topics covered in this episode: Django Modern RestAlready playing with Python 3.15Cutting Python Web App Memory Over 31%tryke - A Rust-based Ptyhon test runner with a Jest-style APIExtrasJokeWatch on YouTube About the show Sponsored by us! Support our work through: Our courses at Talk Python TrainingThe Complete pytest CoursePatreon Supporters Connect with the hostsMichael: @mkennedy@fosstodon.org / @mkennedy.codes (bsky)Brian: @brianokken@fosstodon.org / @brianokken.bsky.socialShow: @pythonbytes@fosstodon.org / @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. Michael #1: Django Modern Rest Modern REST framework for Django with types and async supportSupports Pydantic, Attrs, and msgspecHas ai coding support with llms.txtSee an example at the “showcase” section Brian #2: Already playing with Python 3.15 3.15.0a8, 2.14.4 and 3.13.13 are out Hugo von Kemenadebeta comes in May, CRs in Sept, and Final planned for OctoberBut still, there’s awesome stuff here already, here’s what I’m looking forward to: PEP 810: Explicit lazy importsPEP 814: frozendict built-in typePEP 798: Unpacking in comprehensions with * and **PEP 686: Python now uses UTF-8 as the default encoding Michael #3: Cutting Python Web App Memory Over 31% I cut 3.2 GB of memory usage from our Python web apps using five techniques: async workersimport isolationthe Raw+DC database patternlocal imports for heavy librariesdisk-based cachingSee the full article for details. Brian #4: tryke - A Rust-based Ptyhon test runner with a Jest-style API Justin ChapmanWatch mode, Native async support, Fast test discovery, In-source testing, Support for doctests, Client/server mode for fast editor integrations, Pretty, per-assertion diagnostics, Filtering and marks, Changed mode (like pytest-picked), Concurrent tests, Soft assertions,JSON, JUnit, Dot, and LLM reportersHonestly haven’t tried it yet, but you know, I’m kinda a fan of thinking outside the box with testing strategies so I welcome new ideas. Extras Brian: Why are’t we uv yet? Interesting take on the “agents prefer pip”Problem with analysis. Many projects are libraries and don’t publish uv.lock fileEven with uv, it still often seen as a developer preference for non-libarries. You can sitll use uv with requirements.txtPyCon US 2026 talks schedule is up Interesting that there’s an AI track now. I won’t be attending, but I might have a bot watch the videos and summarize for me. :)What has technology done to us? Justin JacksonLean TDD new cover Also, 0.6.1 is so ready for me to start f-ing reading the audio book and get on with this shipping the actual f-ing book and yes I realize I seem like I’m old because I use “f-ing” while typing. Michael:Python 3.14.4 is outBeanie 2.1 release Joke: HumanDB - Blazingly slow. Emotionally consistent.
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    46 min
  • #476 Common themes
    Apr 6 2026
    Topics covered in this episode: Migrating from mypy to ty: Lessons from FastAPIOxyde ORMTypeshedded CPython docsRaw+DC Database Pattern: A RetrospectiveExtrasJokeWatch on YouTube About the show Sponsored by us! Support our work through: Our courses at Talk Python TrainingThe Complete pytest CoursePatreon Supporters Connect with the hosts Michael: @mkennedy@fosstodon.org / @mkennedy.codes (bsky)Brian: @brianokken@fosstodon.org / @brianokken.bsky.socialShow: @pythonbytes@fosstodon.org / @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: Migrating from mypy to ty: Lessons from FastAPI Tim HopperI saw this post by Sebastián Ramírez about all of his projects switching to ty FastAPI, Typer, SQLModel, Asyncer, FastAPI CLISqlModel is already ty only - mypy removedThis signals that ty is ready to useTim lists some steps to apply ty to your own projects Add ty alongside mypySet error-on-warning = trueAccept the double-ignore commentsPick a smaller project to cut over firstDrop mypy when the noise exceeds the signalAdd ty alongside mypyRelated anecdote: I had tried out ty with pytest-check in the past with difficultyTried it again this morning, only a few areas where mypy was happy but ty reported issuesAt least one ty warning was a potential problem for people running pre-releases of pytest,Not really related: packaging.version.parse is awesome Michael #2: Oxyde ORM Oxyde ORM is a type-safe, Pydantic-centric asynchronous ORM with a high-performance Rust core.Note: Oxyde is a young project under active development. The API may evolve between minor versions.No sync wrappers or thread pools. Oxyde is async from the ground upIncludes oxyde-adminFeatures Django-style API - Familiar Model.objects.filter() syntaxPydantic v2 models - Full validation, type hints, serializationAsync-first - Built for modern async Python with asyncioRust performance - SQL generation and execution in native RustMulti-database - PostgreSQL, SQLite, MySQL supportTransactions - transaction.atomic() context manager with savepointsMigrations - Django-style makemigrations and migrate CLI Brian #3: Typeshedded CPython docs Thanks emmatyping for the suggestionDocumentation for Python with typeshed typesSource: typeshedding_cpython_docs Michael #4: Raw+DC Database Pattern: A Retrospective A new design pattern I’m seeing gain traction in the software space: Raw+DC: The ORM pattern of 2026I’ve had a chance to migrate three of my most important web app.Thrilled to report that yes, the web app is much faster using Raw+DCPlus, this was part of the journey to move from 1.3 GB memory usage to 0.45 GB (more on this next week) Extras Brian: Lean TDD 0.5 update Significant rewrite and focus Michael: pytest-just (for just command file testing), by Michael BoothSomething going on with Encode httpx: Anyone know what's up with HTTPX? And forkedstarlette and uvicorn: Transfer of Uvicorn & Starlettemkdocs: The Slow Collapse of MkDocsdjango-rest-framework: Move to django commons?Certificates at Talk Python Training Joke: Neue Rich
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    32 min