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Python Bytes

By: Michael Kennedy and Brian Okken
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  • Summary

  • 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 2016-2024
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Episodes
  • #380 Debugging with your eyes

    #380 Debugging with your eyes
    Apr 23 2024
    Topics covered in this episode: NumFOCUS concernsleaping pytest debugger llmExtra, Extra, Extra,PyPI has completed its first security auditExtrasJokeWatch 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.orgBrian: @brianokken@fosstodon.orgShow: @pythonbytes@fosstodon.org Join us on YouTube at pythonbytes.fm/live to be part of the audience. Usually Tuesdays 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: NumFOCUS concerns Suggested by Pamphile RoyWrite up of the current challenges faced by NumFOCUS, by Paul Ivanov (one of the OG of Scientific Python: Jupyter, Matplotlib, etc.) Struggling to meet the needs of sponsored and affiliated projects.In February, NumFOCUS announced it is moving in a new direction.NumFOCUS initiated an effort to run an election for open board seats and proposed changing its governance structure.Some projects are considering and actively pursuing alternative venues for fiscal sponsorship.Quite a bit more detail and discussion in the article.NumFOCUS covers a lot of projects NumPy, Matplotlib, pandas, Jupyter, SciPy, Astropy, Bokeh, Dask, Conda, and so many more. Michael #2: leaping pytest debugger llm You can ask Leaping questions like: Why am I not hitting function x?Why was variable y set to this value?What was the value of variable x at this point?What changes can I make to this code to make this test pass? Brian #3: Extra, Extra, Extra, 2024 Developer Summit Also suggested by Pamphile, related to Scientific PythonThe Second Scientific Python Developer Summit , June 3-5, Seattle, WALots of great work came out of the First Summit in 2023pytest-regex - Use regexs to specify tests to run Came out of the ’23 summitI’m not sure if I’m super happy about this or a little afraid that I probably could use this.Still, cool that it’s here.Cool short example of using __init__ and __call__ to hand-roll a decorator.ruff got faster Michael #4: PyPI has completed its first security audit Trail of Bits spent a total of 10 engineer-weeks of effort identifying issues, presenting those findings to the PyPI team, and assisting us as we remediated the findings.Scope: The audit was focused on "Warehouse", the open-source codebase that powers pypi.orgAs a result of the audit, Trail of Bits detailed 29 different advisories discovered across both codebases. When evaluating severity level of each advisory, 14 were categorized as "informational", 6 as "low", 8 as "medium" and zero as "high". Extras Brian: pytest course community to try out Podia Communities.Anyone have a podia community running strong now? If so, let me know through Mastodon: @brianokken@fosstodon.orgWant to join the community when it’s up and running? Same. Or join our our friends of the show list, and read our newsletter. I’ll be sure to drop a note in there when it’s ready. Michael: VS Code AMA @ Talk Python [video]Gunicorn CVETalk submissions are now open for both remote and in-person talks at the 2024 PyConZA? The conference will be held on 3 and 4 October 2024 in Cape Town, South Africa. Details are on za.pycon.org.FlaskCon 2024 will be happening Friday, May 17 inside PyCon US 2024. Call for proposals are now live! Joke: Debugging with your eyes
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    24 mins
  • #379 Constable on the debugging case

    #379 Constable on the debugging case
    Apr 16 2024
    Topics covered in this episode:
    • How to Set Up Pre-Commit Hooks A step-by-step guide to installing and configuring pre-commit hooks on your project.
    • difftastic
    • Quarto
    • constable
    • 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: @mkennedy@fosstodon.org
    • Brian: @brianokken@fosstodon.org
    • Show: @pythonbytes@fosstodon.org

    Join us on YouTube at pythonbytes.fm/live to be part of the audience. Usually Tuesdays 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: How to Set Up Pre-Commit Hooks A step-by-step guide to installing and configuring pre-commit hooks on your project.

    • by Stefanie Molin
    • Pre-commit hooks are code checks that run as part of the “pre-commit” stage of the git commit process.
    • If any of these checks fail, git aborts the commit
    • Sometimes, we need to bypass the hooks temporarily. For these instances, we can pass the --no-verify option when we run git commit

    Brian #2: difftastic

    • Found this a couple years ago, but really using it a lot now.
    • Excellent structurally diff tool that compares code based on syntax, not line by line.

    Michael #3: Quarto

    • via Mathias Johansson
    • An open-source scientific and technical publishing system
    • Transforming a notebook into a pdf / HTML / MS Word / ePub with minimal effort, or even all formats at once.
    • Author using Jupyter notebooks or with plain text markdown in your favorite editor.
    • Write using Pandoc markdown, including equations, citations, crossrefs, figure panels, callouts, advanced layout, and more.

    Brian #4: constable

    • “inserts print statements directly into the AST at runtime “
    • “If you find yourself aimlessly adding print statements while debugging your code, this is for you. !”
    • Add decorators like @constable.trace('a', 'b') to functions and you’ll get nice output showing when and how a and b changed.
    • see also icecream for another fun debugging with print project.

    Extras

    Brian:

    • pointers being added to the standard library
      • A couple weeks old, but still worth covering
      • Guido’s take on adding this, "Why the hell not?"

    Michael:

    • Python 3.12.3 is out

    Joke: Hugo SciFi Award
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    20 mins
  • #378 Python is on the edge

    #378 Python is on the edge
    Apr 9 2024
    Topics covered in this episode: pacemaker - For controlling time per iteration loop in Python.PyPI suspends new user registration to block malware campaignPython Project-Local Virtualenv Management ReduxPython Edge Workers at CloudflareExtrasJokeWatch 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.orgBrian: @brianokken@fosstodon.orgShow: @pythonbytes@fosstodon.org Join us on YouTube at pythonbytes.fm/live to be part of the audience. Usually Tuesdays 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: pacemaker - For controlling time per iteration loop in Python. Brandon RohrerGood example of a small bit of code made into a small package.With speedups to dependencies, like with uv, for example, I think we’ll see more small projects.Cool stuff Great README, including quirks that need to be understood by users. “If the pacemaker experiences a delay, it will allow faster iterations to try to catch up. Heads up: because of this, any individual iteration might end up being much shorter than suggested by the pacemaker's target rate.”Nice use of time.monotonic() deltas are guaranteed to never go back in time regardless of what adjustments are made to the system clock.Watch out for pip install pacemaker-lite NOT pacemakerpacemaker is taken by a package named PaceMaker with a repo named pace-maker, that hasn’t been updated in 3 years. Not sure if it’s alive. No tests (yet). I’m sure they’re coming. ;) Seriously though, Brandon says this is “a glorified snippet”. And I love the use of packaging to encapsulate shared code. Realistically, small snippet like packages have functionality that’s probably going to be tested by end user code.And even if there are tests, users should test the functionality they are depending on. Michael #2: PyPI suspends new user registration to block malware campaign Incident Report for Python InfrastructurePyPi Is Under Attack: Project Creation and User Registration Suspended — Here’s the details I hate medium, but it’s the best details I’ve found so far Brian #3: Python Project-Local Virtualenv Management Redux HynekConcise writeup of how Hynek uses various tools for dealing with environmentsCovers (paren notes are from Brian) In project .venv directoriesdirenv for handling .envrc files per project (time for me to try this again)uv for pip and pip-compile functionalityInstalling Python via python.orgUsing a .python-version-default file (I’ll need to play with this a bit) Works with GH Action setup-python. (ok. that’s cool)Some fish shell scriptingBonus tip on using requires-python in .pyproject.toml and extracting it in GH actions to be able to get the python exe name, and then be able to pass it to Docker and reference it in a Dockerfile. (very cool) Michael #4: Python Edge Workers at Cloudflare What are edge workers?Based on workers using Pyodide and WebAssemblyThis new support for Python is different from how Workers have historically supported languages beyond JavaScript — in this case, we have directly integrated a Python implementation into workerd, the open-source Workers runtime.Python Workers can import a subset of popular Python packages including FastAPI, Langchain, numpyCheck out the examples repo. Extras Michael: LPython follow up from Brian SkinnFeatured on Python Bytes badgeA little downtime, thanks for the understanding We were rocking a 99.98% uptime until then. :) Joke: C++ is not safe for people under 18Baseball joke
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    31 mins
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Great content for Python programmers

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