Python Bytes Podcast Por Michael Kennedy and Brian Okken arte de portada

Python Bytes

Python Bytes

De: Michael Kennedy and Brian Okken
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Python Bytes is a weekly podcast hosted by Michael Kennedy and Brian Okken. The show is a short discussion on the headlines and noteworthy news in the Python, developer, and data science space.Copyright 2016-2026 Política y Gobierno
Episodios
  • #465 Stack Overflow is Cooked

    #465 Stack Overflow is Cooked
    Jan 12 2026
    Topics covered in this episode: port-killerHow we made Python's packaging library 3x fasterCodSpeedExtrasJokeWatch 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: port-killer A powerful cross-platform port management tool for developers.Monitor ports, manage Kubernetes port forwards, integrate Cloudflare Tunnels, and kill processes with one click.Features: 🔍 Auto-discovers all listening TCP ports⚡ One-click process termination (graceful + force kill)🔄 Auto-refresh with configurable interval🔎 Search and filter by port number or process name⭐ Favorites for quick access to important ports👁️ Watched ports with notifications📂 Smart categorization (Web Server, Database, Development, System) Brian #2: How we made Python's packaging library 3x faster Henry SchreinerSome very cool graphs demonstrating some benchmark data.And then details about how various speedups each being 2-37% fasterthe total adding up to about 3x speedup, or shaving 2/3 of the time.These also include nice write-ups about why the speedups were chosen.If you are trying to speed up part of your system, this would be good article to check out. Michael #3: AI’s Impact on dev companies On TailwindCSS: via Simon Tailwind is growing faster than ever and is bigger than it has ever beenIts revenue is down close to 80%.75% of the people on our engineering team lost their jobs here yesterday because of the brutal impact AI has had on our business.“We had 6 months left”Listen to the founder: “A Morning Walk”Super insightful video: Tailwind is in DEEP troubleOn Stack Overflow: See video. SO was founded around 2009, first month had 3,749 questionsDecember, SO had 3,862 questions askedMost of its live it had 200,000 questions per monthThat is a 53x drop! Brian #4: CodSpeed “CodSpeed integrates into dev and CI workflows to measure performance, detect regressions, and enable actionable optimizations.”Noticed it while looking through the GitHub workflows for FastAPIFree for small teams and open-source projectsEasy to integrate with Python by marking tests with @pytest.mark.benchmarkThey’ve releases a GitHub action to incorporate benchmarking in CI workflows Extras Brian: Part 2 of Lean TDD released this morning, “Lean TDD Practices”, which has 9 mini chapters. Michael: Our Docker build just broke because of the supply chain techniques from last week (that’s a good thing!). Not a real issue, but really did catch an open CVE.Long passwords are bad now? ;) Joke: Check out my app!
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    36 m
  • #464 Malicious Package? No Build For You!

    #464 Malicious Package? No Build For You!
    Jan 5 2026
    Topics covered in this episode: ty: An extremely fast Python type checker and LSPPython Supply Chain Security Made Easytyping_extensionsMI6 chief: We'll be as fluent in Python as we are in RussianExtrasJokeWatch on YouTube About the show 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 10am 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: ty: An extremely fast Python type checker and LSP Charlie Marsh announced the Beta release of ty on Dec 16“designed as an alternative to tools like mypy, Pyright, and Pylance.”Extremely fast even from first runSuccessive runs are incremental, only rerunning necessary computations as a user edits a file or function. This allows live updates.Includes nice visual diagnostics much like color enhanced tracebacksExtensive configuration control Nice for if you want to gradually fix warnings from ty for a projectAlso released a nice VSCode (or Cursor) extension Check the docs. There are lots of features.Also a note about disabling the default language server (or disabling ty’s language server) so you don’t have 2 running Michael #2: Python Supply Chain Security Made Easy We know about supply chain security issues, but what can you do? Typosquatting (not great)Github/PyPI account take-overs (very bad)Enter pip-audit.Run it in two ways: Against your installed dependencies in current venvAs a proper unit test (so when running pytest or CI/CD).Let others find out first, wait a week on all dependency updates: uv pip compile requirements.piptools --upgrade --output-file requirements.txt --exclude-newer "1 week"Follow up article: DevOps Python Supply Chain Security Create a dedicated Docker image for testing dependencies with pip-audit in isolation before installing them into your venv. Run pip-compile / uv lock --upgrade to generate the new lock fileTest in a ephemeral pip-audit optimized Docker containerOnly then if things pass, uv pip install / uv syncAdd a dedicated Docker image build step that fails the docker build step if a vulnerable package is found. Brian #3: typing_extensions Kind of a followup on the deprecation warning topic we were talking about in December.prioinv on Mastodon notified us that the project typing-extensions includes it as part of the backport set.The warnings.deprecated decorator is new to Python 3.13, but with typing-extensions, you can use it in previous versions.But typing_extesions is way cooler than just that.The module serves 2 purposes: Enable use of new type system features on older Python versions.Enable experimentation with type system features proposed in new PEPs before they are accepted and added to the typing module.So cool.There’s a lot of features here. I’m hoping it allows someone to use the latest typing syntax across multiple Python versions.I’m “tentatively” excited. But I’m bracing for someone to tell me why it’s not a silver bullet. Michael #4: MI6 chief: We'll be as fluent in Python as we are in Russian "Advances in artificial intelligence, biotechnology and quantum computing are not only revolutionizing economies but rewriting the reality of conflict, as they 'converge' to create science fiction-like tools,” said new MI6 chief Blaise Metreweli.She focused mainly on threats from Russia, the country is "testing us in the grey zone with tactics that are just below the threshold of war.”This demands what she called "mastery of technology" across the service, with officers required to become "as comfortable with lines of code as we are with human sources, as fluent in Python as we are in multiple other languages."Recruitment will target linguists, data scientists, engineers, and technologists alike. Extras Brian: Next chapter of Lean TDD being released today, Finding Waste in TDD Still going to attempt a Jan 31 deadline for first draft of book.That really doesn’t seem like enough time, but I’m optimistic.SteamDeck is not helping me find time to write But I very much appreciate the gift from my famSend me game suggestions on Mastodon or Bluesky. I’d love to hear what you all are playing. Michael: Astral has announced the Beta release of ty, which they say they are "ready to recommend to motivated users for production use." Blog postRelease pageReuven Lerner has a video series on Pandas 3 Joke: Error Handling in the age of AI Play on the inversion of JavaScript the Good Parts
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    30 m
  • #463 2025 is @wrapped

    #463 2025 is @wrapped
    Dec 22 2025
    Topics covered in this episode: Has the cost of building software just dropped 90%?More on Deprecation WarningsHow FOSS Won and Why It MattersShould I be looking for a GitHub alternative?ExtrasJokeWatch 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 10am 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. HEADS UP: We are taking next week off, happy holiday everyone. Michael #1: Has the cost of building software just dropped 90%? by Martin AldersonAgentic coding tools are collapsing “implementation time,” so the cost curve of shipping software may be shifting sharplyRecent programming advancements haven’t been that great of a true benefit: Cloud, TDD, microservices, complex frontends, Kubernetes, etc.Agentic AI’s big savings are not just code generation, but coordination overhead reduction (fewer handoffs, fewer meetings, fewer blocks).Thinking, product clarity, and domain decisions stay hard, while typing and scaffolding get cheap.Is it the end of software dev? Not really, see Jevons paradox: when production gets cheaper, total demand can rise rather than spending simply falling. (Historically: the efficiency of coal use led to the increased consumption of coal)Pushes back on “only good for greenfield” by arguing agents also help with legacy code comprehension and bug-fixing. I 100% agree. #Legacy code for the win. Brian #2: More on Deprecation Warnings How are people ignoring them? yep, it’s right in the Python docs: -W ignore::DeprecationWarningDon’t do that!Perhaps the docs should give the example of emitting them only once -W once::::DeprecationWarningSee also -X dev mode , which sets -W default and some other runtime checksDon’t use warn, use the @warnings.deprecated decorator instead Thanks John Hagen for pointing this outEmits a warningIt’s understood by type checkers, so editors visually warn youYou can pass in your own custom UserWarning with categorymypy also has a command line option and setting for this --enable-error-code deprecatedor in [tool.mypy] enable_error_code = ["deprecated"]My recommendation Use @deprecatedwith your own custom warningand test with pytest -W error Michael #3: How FOSS Won and Why It Matters by Thomas DepierreCompanies are not cheap, companies optimize cost control. They do this by making purchasing slow and painful.FOSS is/was a major unlock hack to skip procurement, legal, etc.Example is months to start using a paid “Add to calendar” widget!It “works both ways”: the same bypass lowers the barrier for maintainers too, no need for a legal entity, lawyers, liability insurance, or sales motion.Proposals that “fix FOSS” by reintroducing supply-chain style controls (he name-checks SBOMs and mandated processes) risk being rejected or gamed, because they restore the very friction FOSS sidesteps. Brian #4: Should I be looking for a GitHub alternative? Pricing changes for GitHub Actions The self-hosted runner pricing change caused a kerfuffle.It’s has been postponedBut… if you were to look around, maybe pay attention to These 4 GitHub alternatives are just as good—or better Codeburg, BitBucket, GitLab, GiteaAnd a new-ish entry, Tangled Extras Brian: End of year sale for The Complete pytest Course Use code XMAS2025 for 50% off before Dec 31Writing work on Lean TDD book on hold for holidays Will pick up again in January Michael: PyCharm has better Ruff support now out of the box, via Daniel Molnar This is from the release notes of 2025.3: "PyCharm 2025.3 expands its LSP integration with support for Ruff, ty, Pyright, and Pyrefly.”If you check out the LSP section it will land you on this page and you can go to Ruff.The Ruff doc site was also updated. Previously it was only available external tools and a third party plugin, this feels like a big step.Fun quote I saw on ExTwitter: May your bug tracker be forever empty. Joke: Try/Catch/Stack OverflowCreate a super annoying linkedin profile - From Tim Kellogg, submitted by archtoad
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    43 m
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