Python Bytes

De: Michael Kennedy and Brian Okken
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  • Sumário

  • 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 2016-2025
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Política e Governo
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Episódios
  • #420 90% Done in 50% of the Available Time

    #420 90% Done in 50% of the Available Time
    Feb 17 2025
    Topics covered in this episode: PEP 772 – Packaging governance processOfficial Django MongoDB Backend Now Available in Public PreviewDeveloper PhilosophyPython 3.13.2 releasedExtrasJokeWatch 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. Brian #1: PEP 772 – Packaging governance process draft, created 21-Jan, by Barry Warsaw, Deb Nicholson, Pradyun Gedam“As Python packaging has matured, several interrelated problems with the current way of managing the technical development, decision making and processes have become apparent.”“This PEP proposes a Python Packaging Council with broad authority over packaging standards, tools, and implementations. Like the Python Steering Council, the Packaging Council seeks to exercise this authority as rarely as possible; instead, they use this power to establish standard processes.”PEP discusses PyPA, Packaging-WG, Interoperability Standards, Python Steering Council, and Expectations of an elected Packaging CouncilA specification with Composition: 5 peopleMandate, Responsibilities, Delegations, Process, Terms, etc. Michael #2: Official Django MongoDB Backend Now Available in Public Preview Over the last few years, Django developers have increasingly used MongoDB, presenting an opportunity for an official MongoDB-built Python package to make integrating both technologies as painless as possible.Features The ability to use Django models with confidence. Developers can use Django models to represent MongoDB documents, with support for Django forms, validations, and authentication.Django admin support. The package allows users to fire up the Django admin page as they normally would, with full support for migrations and database schema history.Native connecting from settings.py. Just as with any other database provider, developers can customize the database engine in settings.py to get MongoDB up and running.MongoDB-specific querying optimizations. Field lookups have been replaced with aggregation calls (aggregation stages and aggregate operators), JOIN operations are represented through $lookup, and it’s possible to build indexes right from Python.Limited advanced functionality. While still in development, the package already has support for time series, projections, and XOR operations.Aggregation pipeline support. Raw querying allows aggregation pipeline operators. Since aggregation is a superset of what traditional MongoDB Query API methods provide, it gives developers more functionality. Brian #3: Developer Philosophy by qntmIntended as “advice for junior developers about personal dev philosophy”, I think these are just great tips to keep in mind.The items Avoid, at all costs, arriving at a scenario where the ground-up rewrite starts to look attractive This is less about “don’t do rewrites”, but about noticing the warning signs ahead of time.Aim to be 90% done in 50% of the available time Great quote: “The first 90% of the job takes 90% of the time. The last 10% of the job takes the other 90% of the time.”Automate good practicesThink about pathological data “Nobody cares about the golden path. Edge cases are our entire job.”Brian’s note: But also think about the happy path. Documenting and testing what you think of as the happy path is a testing start and helps others understand your idea of how things are supposed to work.There’s usually a simpler way to write itWrite code to be testableIt is insufficient for code to be provably correct; it should be obviously, visibly, trivially correct Brian’s note: Even if it’s obviously, visibly, trivially correct, it will still break. So test it anyway. Michael #4: Python 3.13.2 released Python 3.13’s second maintenance release. About 250 changes went into this updateAlso Python 3.12.9, Python 3.12’s ninth maintenance release already. Just 180 changes for 3.12, but it’s still worth upgrading.For us, it’s simply rebuilding our Docker base (i.e. —no-cache) with these lines: RUN curl -LsSf https://astral.sh/uv/install.sh | sh RUN --mount=type=cache,target=/root/.cache uv venv --python 3.13 /venv Extras Brian: Still thinking about pytest plugins a lot.The top pytest plugin list Has been updated for FebIs starting to include things without “pytest” in the name, like Hypothesis and Syrupy. Eventually I’ll have to add “looking at trove classifiers” as part of the search...
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    28 minutos
  • #419 Is your back end popular?

    #419 Is your back end popular?
    Feb 4 2025
    Topics covered in this episode: content-types package for better MIME types/Content-TypeWagtail 6.4Build It YourselfBuild backend popularity over timeExtrasJokeWatch 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. Michael #1: content-types package for better MIME types/Content-Type It started with this comment from Raf.mimetypes — Map filenames to MIME typesIt is oddly missing very common types and varies by platform, OS install and other factors (see this function).Search around and found python-magic. Seems great but ImportError: failed to find libmagic. Check your installation → brew install libmagicmagic.from_file("testdata/test.pdf") → FileNotFoundError: [Errno 2] No such file or directory: 'testdata/test.pdf'hmmSo I had to create my own. Introducing content-types A Python library to map file extensions to MIME types.Unlike other libraries, this one does not try to access the file or parse the bytes of the file or stream. It just looks at the extension.Better support than mimetypes builtin. Brian #2: Wagtail 6.4 Release notesLots of great updates, but I want to zoom in on background tasks.6.4 includes django-tasks which is an available implementation of DEP 0014: Background workers This proposal is accepted and this thread includes a great talk from DjangoCon Europe 2024Why is this cool? Even though django-tasks says it’s “under active development”, as long as you pin the version and test your behavior depending on this, it must be ready to use if wagtail is going for it. Don't you think? Michael #3: Build It Yourself from Armin Ronacher, sent in by Rafael WeingartnerAn excellent article pushing back on too many dependenciesMaybe the advice of always prefer code reuse isn’t that great after all?It’s much much easier to solve small little problems these days due to AI.Take Postmark as an example.“It's time to have a new perspective: we should give kudos to engineers who write a small function themselves instead of hooking in a transitive web of crates. We should be suspicious of big crate graphs. Celebrated are the minimal dependencies, the humble function that just quietly does the job, the code that doesn't need to be touched for years because it was done right once.” - Armin Brian #4: Build backend popularity over time Bastian VenthurThis is just for projects using pyproject.tomlApparently he did this last year as well, so we can see some trends.Results setuptools: ~50% (last year ~50%)poetry: ~30% (last year ~33%)hatchling: (percent not listed, but looks like 12-15%), (last year 10%)flit: ~5% (last year ~10%)other: (above flit now)Analysis: setuptools continues to grow in absolute numbers and maintain it’s percentage.poetry declininghatchling growingflit decliningBrian commentary This is not surprising to me. I generally use hatchling for more control, and setuptools for simple projects. I think we might end up with mostly setuptools and hatchling in a couple years. Extras Brian: Test & Code Archive is now all episodes on one page Old method was 30 episodes per pageFor something completely different NameGrapher - popularity of US namesNo wonder I don’t meet a lot of kids named BrianMichael is #16 (#1 in 1950s - 1990s)Brian is #317 (#8 in 1970s) Joke: The long path to rejection.
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    30 minutos
  • #418 I'm a tea pot

    #418 I'm a tea pot
    Jan 27 2025
    Topics covered in this episode: In memoriam: Michael Foord 1974-2025Valkey (Redis Replacement)30 best practices for software development and testingmimetype.ioExtrasJokeWatch 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. Brian #1: In memoriam: Michael Foord 1974-2025 Guido van Rossum and othersWe’ve just lost Michael Foord this last weekend.From Guido: “Michael, an original thinker if there ever was one, started the tradition of having Language Summit events at PyCon, IIRC together with Barry Warsaw. He also wrote and contributed the influential mock library. … “ “PS. Feel free to post your own (positive) memories of meeting Michael – perhaps his children (10 and 13) will read them when they’re older and this thread might help them remember their father.” I’ve added my memories. I think this is a great (and small) way to honor him.My friend Michael - Nicholas TolerveyAfter 5 years of trying, I did get an interview with Michael. I wish I’d have gotten that followup. Test & Code episode with Michael, ep 145, “For those about to mock” Michael #2: Valkey (Redis Replacement) Thanks Calvin HPAn open source (BSD) high-performance key/value datastore that supports a variety of workloads such as caching, message queues.Can act as a primary database.Valkey can run as either a standalone daemon or in a cluster, with options for replication and high availability.Valkey natively supports a rich collection of datatypes, including strings, numbers, hashes, lists, sets, sorted sets, bitmaps, hyperloglogs and more. You can operate on data structures in-place with an expressive collection of commands. Brian #3: 30 best practices for software development and testing Michael Foord (from 2017)Some gems 1 - YAGNI6 - Unit tests test to the unit of behavior, not the unit of implementation. 8 - Code is the enemy: It can go wrong, and it needs maintenance. Write less code. Delete code. Don’t write code you don’t need.15 - The more you have to mock out to test your code, the worse your code is.and so many more … Michael #4: mimetype.io I’m always forgetting content types!Also, shout out to httpstatuses.io Extras Brian: Python 1.0.0 released 31 years ago Michael: Python 3.14.0 alpha 4 is out Joke: Tea Time
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    20 minutos
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