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Python Bytes

Podcast Python Bytes
Michael Kennedy and Brian Okken
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, d...
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5 de 10
  • #412 Closing the loop
    Topics covered in this episode: Loop targets asyncstdlib Bagels: TUI Expense Tracker rloop: An AsyncIO event loop implemented in Rust 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 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: Loop targets Ned Batchelder I don’t think I would have covered this had it not been the surprising opposition to Ned’s code. Here’s the snippet: params = { "query": QUERY, "page_size": 100, } *# Get page=0, page=1, page=2, ...* **for** params["page"] in itertools.count(): data = requests.get(SEARCH_URL, params).json() **if** not data["results"]: **break** ... Ned is utilizing the assignment in the for loop to use the value of count() and store it into the params["page"]. The article includes another version with a temp variable page_num, which I think the naysayers would prefer. But frankly, I think both are fine. Why not put the value right where you want it? Michael #2: asyncstdlib The asyncstdlib library re-implements functions and classes of the Python standard library to make them compatible with async callables, iterables and context managers. It is fully agnostic to async event loops and seamlessly works with asyncio, third-party libraries such as trio, as well as any custom async event loop. Full set of async versions of advantageous standard library helpers, such as zip, map, enumerate, functools.reduce, itertools.tee, itertools.groupby and many others. Safe handling of async iterators to ensure prompt cleanup, as well as various helpers to simplify safely using custom async iterators. Small but powerful toolset to seamlessly integrate existing sync code into async programs and libraries. Brian #3: Bagels: TUI Expense Tracker Jax Tam “Bagels expense tracker is a TUI application where you can track and analyse your money flow, with convenience oriented features and a complete interface. Why an expense tracker in the terminal? I found it easier to build a habit and keep an accurate track of my expenses if I do it at the end of the day, instead of on the go. So why not in the terminal where it's fast, and I can keep all my data locally?” Who hasn’t wanted to write their own expense tracker? This implementation is fun for lots of reasons It’s still new and pretty small, so forking it for your own uses should be easy Built on textual is fun install instructions based on uv tool seems to be the new normal: uv tool install --python 3.13 bagels test suite started pretty useful as is, actually Nice that it includes a roadmap of future goals Would be a fun project to help out with for anyone looking for anyone looking for a shiny new codebase to contribute to. Michael #4: rloop: An AsyncIO event loop implemented in Rust An AsyncIO event loop implemented in Rust From Giovanni Barillari, Creator of Granian RLoop is an AsyncIO event loop implemented in Rust on top of the mio crate. Disclaimer: This is a work in progress and definitely not ready for production usage. Run asyncio.set_event_loop_policy(rloop.EventLoopPolicy()) and done. Similar to uvloop. Extras Brian: I’m currently listening to Four Thousand Weeks - Time Management for Mortals by Oliver Burkeman for the second time. Highly recommend. Development Advent Calendars for 2024 - Adrian Roselli Black Friday at PythonTest.com Michael: Docker cluster monitor Compare engagement across Mastodon / Bsky / Twitter https://bsky.app/profile/pythonbytes.fm/post/3lbseqgr5m22z https://fosstodon.org/@pythonbytes/113545509565796190 https://x.com/pythonbytes/status/1861166179236319288 Back on #277 we talked about StrEnum. Got a nice chance to use it this weekend. Maybe Finance Go sponsor a bunch of projects on GitHub Black Friday at Talk Python Joke: CTRL + X onion
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  • #411 TLS Client: Hello <<guitar solo>>
    Topics covered in this episode: Talk Python rewritten in Quart PyPI now supports digital attestations Django Rusty Templates PEP 639 is now supported by PYPI 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 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: Talk Python rewritten in Quart Rewrote all of talkpython.fm in Quart (10k lines of code total, 4k changed) Considered FastAPI Litestar Django Hugo Static Site + Python Flask Discussed the multistage upgrade / conversion process Automating tests for all 1,000 pages Brian #2: PyPI now supports digital attestations Dustin Ingram “Attestations provide a verifiable link to an upstream source repository: By signing with the identity of the upstream source repository, such as in the case of an upload of a project built with GitHub Actions, PyPI's support for digital attestations defines a strong and verifiable association between a file on PyPI and the source repository, workflow, and even the commit hash that produced and uploaded the file. Additionally, publishing attestations to a transparency log helps mitigate against both compromise of PyPI and compromise of the projects themselves.” For maintainers If using GH Actions and Trusted Publishing make sure you use pypa/gh-action-pypi-publish, version v1.11.0 or newer that’s it If not “Support for automatic attestation generation and publication from other Trusted Publisher environments is planned.” “While not recommended, maintainers can also manually generate and publish attestations.” See also PyPI Introduces Digital Attestations to Strengthen Python Package Security by Sarah Gooding Are we PEP 740 yet? Michael #3: Django Rusty Templates by Lily Foote An experimental reimplementation of Django's templating language in Rust. Goals 100% compatibility of rendered output. Error reporting that is at least as useful as Django's errors. Improved performance over Django's pure Python implementation. Brian #4: PEP 639 is now supported by PYPI from Brett Cannon PEP 639 – Improving License Clarity with Better Package Metadata For project metadata, use these fields: license and license-files: Examples license field [project] license = "MIT" [project] license = "MIT AND (Apache-2.0 OR BSD-2-clause)" [project] license = "MIT OR GPL-2.0-or-later OR (FSFUL AND BSD-2-Clause)" [project] license = "LicenseRef-Proprietary" Examples of license-files: [project] license-files = ["LICEN[CS]E*", "AUTHORS*"] [project] license-files = ["licenses/LICENSE.MIT", "licenses/LICENSE.CC0"] [project] license-files = ["LICENSE.txt", "licenses/*"] [project] license-files = [] Extras Brian: Playground Wisdom: Threads Beat Async/Await - interesting read from Armin Ronacher about different language abstractions around concurrency. PythonTest.com Discord community is now live Launched last week, as of this morning we’ve got 89 members Anyone already a pythontest community member has received an invite Anyone can join through courses.pythontest.com Everything at pythontest.com is 20% off through Dec 2 with code turkeysale2024 “Python Testing with pytest” eBook 40% off through Dec 2, use code turkeysale2024 Michael: Python 3.14.0a2 released Starter packs: Michael’s Python people: https://bsky.app/starter-pack/mkennedy.codes/3lbdnupl26e2x Directory: https://blueskydirectory.com/starter-packs/all Joke: curl - heavy metal style!
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  • #410 Entering the Django core
    Topics covered in this episode: Thoughts on Django’s Core futurepool Don't return named tuples in new APIs Ziglang: Migrating from AWS to Self-Hosting 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 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: Thoughts on Django’s Core Carlton Gibson Great discussion on Django and Core vs Plugins Sustainability with limited people Keeping core small The release cycle eembrace plugins vs endorsing plugins. Michael #2: futurepool via Pat Decker Takes the concept of multiprocessing Pool to the async/await world. Create a pool then delegate the work: async with FuturePool(2) as fp: result = await fp.map(async_pool_fn, range(10)) I would LOVE to see something like this in a broader background asyncio worker pool concept. But that concept doesn’t exist in asyncio in Python and that’s a failing of the framework IMO. Brian #3: Don't return named tuples in new APIs Brett Cannon First off, I’m grateful for any post that talks about APIs and the API is a module, class, or package API and not a Web/REST API. The term API existed long before the internet. “e.g., get_mouse_position() very likely has a two-item tuple of X and Y coordinates of the screen” “it actually makes your API more complex for both you and your users to use. For you, it doubles the data access API surface for your return type as you have to now support index-based and attribute-based data access forever (or until you choose to break your users and change your return type so it doesn't support both approaches)” “… you probably don't want people doing with your return type, like slicing, iterating over all the items …” Alternatives class dataclass dictionary TypedDict SimpleNamespace “My key point in all of this is to prefer readability and ergonomics over brevity in your code. That means avoiding named tuples except where you are expanding to tweaking an existing API where the named tuple improves over the plain tuple that's already being used.” Michael #4: Ziglang: Migrating from AWS to Self-Hosting The Rust Foundation for example, reports that they spent $404,400 on infrastructure costs in 2023. Zig lang has decided to use a single big cloud machine + mirrors Extras Brian: Changing the Python Test community Was started to answer questions for Test & Code listeners years ago. Primarily pytest questions Used to be Slack. Then moved to Podia forum. Now I’m trying to work out a Discord solution that is both sustainable and usable. Michael: PWang Bsky essay Building A Business From Python Expertise - Michael Kennedy on Work Item Podcast Subscribe to package releases, just put .atom on the end of their releases URL, for example: github.com/mikeckennedy/jinja_partials/releases ← add .atom for RSS pytest-bdd 8.0.0 was just released via Jamie Thomson The big feature (in Jamie’s opinion) is the addition of data tables https://github.com/pytest-dev/pytest-bdd/blob/master/CHANGES.rst#800---2024-11-14 Joke: Breaking: JavaScript Developer Commits to Framework for Record-Breaking 3 Weeks
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  • #409 We've moved to Hetzner write-up
    Topics covered in this episode: terminal-tree posting: The API client that lives in your terminal Extra, extra, extra UV does everything or enough that I'm not sure what else it needs to do Extras Joke Watch on YouTube About the show Sponsored by: ScoutAPM - Django Application Performance Monitoring Codeium - Free AI Code Completion & Chat 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 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: terminal-tree An experimental filesystem navigator for the terminal, built with Textual Tested in macOS only at this point. Chances are very high it works on Linux. Slightly lower chance (but non-zero) that it works on Windows. Can confirm it works on Linux Brian #2: posting: The API client that lives in your terminal Also uses Textual From Darren Burns Interesting that the installation instructions recommends using uv: uv tool install --python 3.12 posting Very cool. Great docs. Beautiful. keyboard centric, but also usable with a mouse. “Fly through your API workflow with an approachable yet powerful keyboard-centric interface. Run it locally or over SSH on remote machines and containers. Save your requests in a readable and version-control friendly format.” Able to save multiple environments Great colors Allows scripting to run Python code before and after requests to prepare headers, set variables, etc. Michael #3: Extra, extra, extra spaCy course swag give-away, enter for free New essay: Opposite of Cloud Native is? News: We've moved to Hetzner New package: Introducing chameleon-flask package New release: Listmonk Python client TIOBE Update PEP 750 – Template Strings Canary email Left Omnivore, for Pocket, left Pocket for, …, landed on Instapaper Supports direct import from Omnivore and Pocket Though Hoarder is compelling Trying out Zen Browser Wasn’t a fan of Arc (especially now) but the news turned me on to Zen Brian #4: UV does everything or enough that I'm not sure what else it needs to do Jeff Triplett “UV feels like one of those old infomercials where it solves everything, which is where we have landed in the Python world.” “My favorite feature is that UV can now bootstrap a project to run on a machine that does not previously have Python installed, along with installing any packages your application might require.” Partial list (see Jeff’s post for his complete list) uv pip install replaces pip install uv venv replaces python -m venv uv run, uv tool run, and uv tool install replaces pipx uv build - Build your Python package for pypi uv publish - Upload your Python package to pypi, replacing twine and flit publish Extras Brian: Coverage.py originally was just one file Trying out BlueSky brianokken.bsky.social Not because of Taylor Swift, but nice. There are a lot of Python people there. Joke: How programmers sleep
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  • #408 python-preference only-managed 3.13t
    Topics covered in this episode: GitHub action security: zizmor Python is now the top language on GitHub Python 3.13, what didn't make the headlines PyCon US 2025 Extras Joke Watch on YouTube About the show Sponsored by: ScoutAPM - Django Application Performance Monitoring Codeium - Free AI Code Completion & Chat Connect with the hosts Michael: @[email protected] Brian: @[email protected] Show: @[email protected] 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: GitHub action security: zizmor Article: Ned Batchelder zizmor: William Woodruff & others “a new tool to check your GitHub action workflows for security concerns.” Install with cargo or brew, then point it at workflow yml files. It reports security concerns. Michael #2: Python is now the top language on GitHub Thanks to Pat Decker for the heads up. A rapidly growing number of developers worldwide This suggests AI isn’t just helping more people learn to write code or build software faster—it’s also attracting and helping more people become developers. First-time open source contributors continue to show wide-scale interest in AI projects. But we aren’t seeing signs that AI has hurt open source with low-quality contributions. Python is now the most used language on GitHub as global open source activity continues to extend beyond traditional software development. The rise in Python usage correlates with large communities of people joining the open source community from across the STEM world rather than the traditional community of software developers. There’s a continued increase in first-time contributors to open source projects. 1.4 million new developers globally joined open source with a majority contributing to commercially backed and generative AI projects. Notably, we did not see a rise in rejected pull requests. This could indicate that quality remains high despite the influx of new contributors. Brian #3: Python 3.13, what didn't make the headlines Some pretty cool updates to pdb : the command line Python debugger multiline editing code completion pathlib has a bunch of performance updates python -m venv adds a .gitignore file that auto ignores the venv. Michael #4: PyCon US 2025 Site is live with CFP and dates Health code is finally reasonable: “Masks are Encouraged but not Required” PyCon US 2025 Dates Tutorials - May 14-15, 2025 Sponsor Presentations - May 15, 2025 Opening Reception - May 15, 2025 Main Conference and Online - May 16-18, 2025 Job Fair - May 18, 2025 Sprints - May 19-May 22, 2025 Extras Brian: Please publish and share more - Jeff Triplett Michael: pre-commit-uv Just spoke with Sefanie Molin about pre-commit hooks on Talk Python Curse you Omnivore! We have moved to hetzner Typora markdown app free-threaded Python is now available via uv uv self update uv python install --python-preference only-managed 3.13t Joke: Debugging char
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