Topics covered in this episode:

• Announcing py2wasm: A Python to Wasm compiler
• Exploring Python packages with Oven and PyPI Browser
• PyCharm Local LLM
• Google shedding Python devs (at least in the US).
• Extras
• Joke

Watch on YouTube

About the show

Sponsored by ScoutAPM: pythonbytes.fm/scout

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 Tuesdays at 11am PT. Older video versions available there too.

Finally, if you want an artisanal, hand-crafted digest of every week of

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Michael #1: Announcing py2wasm: A Python to Wasm compiler

• py2wasm converts your Python programs to WebAssembly, running them at 3x faster speeds
• thanks to Nuitka

Brian #2: Exploring Python packages with Oven and PyPI Browser

• pypi.org is great, but there are some handy alternatives
• Oven
  • Shows how to install stuff with pip, pdm, rye, and poetry
  • Similar meta and description as PyPI
  • Includes README.md view (no tables yet, though)
  • Nice listing of versions
  • Ability to look at what files are in wheels and tarballs (very cool)
  • Can deploy yourself. Node/Remix app.
  • Really slick.
• PyPI Browser
  • View versions
  • View wheel and tarball contents.
  • Metadata and contents.
  • No README view
  • Is a Starlette app that you can deploy on your on with a private registry. So that’s cool.

Michael #3: PyCharm Local LLM

• Pretty awesome full line completer based on a local LLM for PyCharm
• Requires PyCharm Professional
• An example, given this partial function in Flask: @blueprint.get('/listing') def listing(): videos = video_service.all_videos()

Typing ret →

That is, typing ret autocompletes to:

return flask.render_template('home/listing.html', videos=videos)

Which is pretty miraculous, and correct.

Brian #4: Google shedding Python devs (at least in the US).

• Google lays off staff from Flutter, Dart and Python teams weeks before its developer conference - techcrunch
• Python, Flutter teams latest on the Google chopping block - The Register
  • “Despite Alphabet last week reporting a 57 percent year-on-year jump in net profit to $23.66 billion for calendar Q1, more roles are being expunged as the mega-corp cracks down on costs.”
  • “As for the Python team, the current positions have reportedly been "reduced" in favor of a new team based in Munich.”
• MK: Related and timely: How one power-hungry leader destroyed Google search

Extras

Brian:

• Python Gotcha: strip, lstrip, rstrip can remove more than expected
  • Reminder: You probably want .removesuffix() and .removeprefix()

Michael:

• Using Llama3 in LMStudio

Joke: Broken System

Topics covered in this episode:

• NumFOCUS concerns
• leaping pytest debugger llm
• Extra, Extra, Extra,
• PyPI has completed its first security audit
• 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]
• Brian: @[email protected]
• Show: @[email protected]

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 Roy
• Write 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 Python
  • The Second Scientific Python Developer Summit , June 3-5, Seattle, WA
  • Lots of great work came out of the First Summit in 2023
• pytest-regex - Use regexs to specify tests to run
  • Came out of the ’23 summit
  • I’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.org
• As 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: @[email protected]
• Want 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 CVE
• Talk 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

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: @[email protected]
• Brian: @[email protected]
• Show: @[email protected]

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

Topics covered in this episode:

• pacemaker - For controlling time per iteration loop in Python.
• PyPI suspends new user registration to block malware campaign
• Python Project-Local Virtualenv Management Redux
• Python Edge Workers at Cloudflare
• 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]
• Brian: @[email protected]
• Show: @[email protected]

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 Rohrer
• Good 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 pacemaker
    • pacemaker 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 Infrastructure
• PyPi 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

• Hynek
• Concise writeup of how Hynek uses various tools for dealing with environments
• Covers (paren notes are from Brian)
  • In project .venv directories
  • direnv for handling .envrc files per project (time for me to try this again)
  • uv for pip and pip-compile functionality
  • Installing Python via python.org
  • Using 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 scripting
  • Bonus 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 WebAssembly
• This 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, numpy
• Check out the examples repo.

Extras

Michael:

• LPython follow up from Brian Skinn
• Featured on Python Bytes badge
• A little downtime, thanks for the understanding
  • We were rocking a 99.98% uptime until then. :)

Joke:

• C++ is not safe for people under 18
• Baseball joke

Topics covered in this episode:

• justpath
• xz back door
• LPython
• dramatic
• Extras
• Joke

Watch on YouTube

About the show

Sponsored by ScoutAPM: pythonbytes.fm/scout

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 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: justpath

• Inspect and refine PATH environment variable on both Windows and Linux.
• Raw, count, duplicates, invalids, corrections, excellent stuff.
• Check out the video

Brian #2: xz back door

• In case you kinda heard about this, but not really.
• Very short version:
  • A Microsoft engineer noticed a performance problem with ssh and tracked it to a particular version update of xz.
  • Further investigations found a multi-year installation of a fairly complex back door into the xz by a new-ish contributor. But still contributing over several years. First commit in early 2022.
  • The problem is caught. But if it had succeeded, it would have been bad.
  • Part of the issue of how this happened is due to having one primary maintainer on a very widely used tool included in tons-o-Linux distributions.
• Some useful articles
  • Everything I Know About the XZ Backdoor - Evan Boehs - recommended read
• Don’t think your affected? Think again if you use homebrew, for example:
  • Update and upgrade Homebrew and xz versions
• Notes
  • Open source maintenance burnout is real
  • Lots of open source projects are maintained by unpaid individuals for long periods of time.
  • Multi-year sneakiness and social bullying is pretty hard to defend against.
  • Handing off projects to another primary maintainer has to be doable.
    • But now I think we need better tools to vet contributors.
    • Maybe? Or would that just suppress contributions?
• One option to help with burnout:
  • JGMM, Just Give Maintainers Money: Software Needs To Be More Expensive - Glyph

Michael #3: LPython

• LPython aggressively optimizes type-annotated Python code. It has several backends, including LLVM, C, C++, and WASM.
• LPython’s primary tenet is speed.
• Play with the wasm version here: dev.lpython.org
• Still in alpha, so keep that in mind.

Brian #4: dramatic

• Trey Hunner
• More drama in the software world. This time in the Python.
• Actually, this is just a fun utility to make your Python output more dramatic.
• More fun output with terminaltexteffects
  • suggested by Allan

Extras

Brian:

• Textual how has a new inline feature in the new release.

Michael:

• My keynote talk is out: The State of Python in 2024
• Have you browsed your github feed lately?
• 3.10, 3.9, 3.8 security updates

Joke: Definition of terms

Topics covered in this episode:

• 🤖 On Robots.txt
• niquests
• Every dunder method in Python
• Lockbox
• Extras
• Joke

Watch on YouTube

About the show

Sponsored by ScoutAPM: pythonbytes.fm/scout

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 Tuesdays at 11am PT. Older video versions available there too.

Brian #1: 🤖 On Robots.txt

• Jeff Triplett
• “In theory, this file helps control what search engines and AI scrapers are allowed to visit, but I need more confidence in its effectiveness in the post-AI apocalyptic world.”
• Resources to get started
  • Block the Bots that Feed “AI” Models by Scraping Your Website
  • Go ahead and block AI web crawlers
  • Dark Visitors
  • Django
    • Add robots.txt to a Django website
    • How to add a robots.txt to your Django site
  • Hugo
    • Hugo robots.txt
• Podcast questions:
  • Should content creators block AI from our work?
  • Should’t we set up a standard way to do this?
  • I still haven’t found a way to block GitHub repositories.
    • Is there a way?
    • Licensing is one thing (not easy), but I don’t think any bots respect any protocol for repos.

Michael #2: niquests

• Requests but with HTTP/3, HTTP/2, Multiplexed Connections, System CAs, Certificate Revocation, DNS over HTTPS / TLS / QUIC or UDP, Async, DNSSEC, and (much) pain removed!
• Niquests is a simple, yet elegant, HTTP library. It is a drop-in replacement for Requests, which is under feature freeze.
• See why you should switch: Read about 10 reasons why

Brian #3: Every dunder method in Python

• Trey Hunner
• Sure, there’s __repr__(), __str__(), and __init__(), but how about dunder methods for:
  • Equality and hashability
  • Orderability
  • Type conversions and formatting
  • Context managers
  • Containers and collections
  • Callability
  • Arithmetic operators
  • … and so much more … even a cheat sheet.

Michael #4: Lockbox

• Lockbox is a forward proxy for making third party API calls.
• Why? Automation or workflow platforms like Zapier and IFTTT allow "webhook" actions for interacting with third party APIs.
• They require you to provide your third party API keys so they can act on your behalf. You are trusting them to keep your API keys safe, and that they do not misuse them.
• How Lockbox helps: When a workflow platform needs to make a third party API call on your behalf, it makes a Lockbox API call instead. Lockbox makes the call to the third party API, and returns the result to the workflow platform.

Extras

Brian:

• Django: Join the community on Mastodon - Adam Johnson
• No maintenance intended - Sent in from Kim van Wyk

Michael:

• US sues Apple
  • Good video on pluses and minuses
  • The hot water just the day before [and this one]
  • https://9to5mac.com/2024/03/25/app-store-proposals-rejected/
• PyPI Support Specialist job
• VS Code AMA, please submit your question here
• PyData Eindhoven 2024 has a date and open CFP

Joke: Windows Certified

Topics covered in this episode:

• pycountry
• Does Python have pointers?
• ingestr
• Make your terminal nice
• Extras
• Joke

Watch on YouTube

About the show

Sponsored by ScoutAPM: pythonbytes.fm/scout

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 Tuesdays at 11am PT. Older video versions available there too.

Michael #1: pycountry

• A Python library to access ISO country, subdivision, language, currency and script definitions and their translations.
• pycountry provides the ISO databases for the standards:
  • 639-3 Languages
  • 3166 Codes for representation of names of countries and their subdivisions
  • 3166-1 Countries
  • 3166-3 Deleted countries
  • 3166-2 Subdivisions of countries
  • 4217 Currencies
  • 15924 Scripts

Brian #2: Does Python have pointers?

• Ned Batchelder
• Turns out, this is really the description of “what’s a variable in Python?” that helps to make sense of the “variables as names” model in Python, especially for people coming from languages that use pointers a lot.
• You can use id() to find out what a variable points to
• You just can’t do the reverse of access it given an id.
• There’s no “dereference” operator.
• See also Python Names and Values, also by Ned
  • Should be required reading/viewing for all Python curriculum.

Michael #3: ingestr

• ingestr is a command-line application that allows ingesting or copying data from any source into any destination database.
• Works on both MongoDB and Postgres and many more.
• incremental loading: append, merge or delete+insert

Brian #4: Make your terminal nice

• David Lord
• David’s switched to Fish and Starship
• I tried switching to Fish several times, and I guess I’m good with zsh.
  • Although I admire the brave comic sans motto: “Finally, a command line shell for the 90s”
• But I’m finally ready for Starship, and it takes almost no time to set up
• Plus it’s fast. (Has it always been Rust?)

Extras

Brian:

• Doing some groundwork for a SaaS project, using SaaS Pegasus
  • I just talked with Cory from Pegasus for an upcoming PythonTest episode
  • I haven’t decided whether to save up SaaS episodes for one big series, or spread them out.
  • But mostly I’m excited to get my project started.

Michael:

• Excellent video about “cloud exit”
• uv - The Next Evolution in Python Packages?
• Python 3.13 a5
• Target’s Open Source Fund via Pat Decker

Joke: Anti-social engineer

Topics covered in this episode:

• 6 ways to improve the architecture of your Python project (using import-linter)
• Mountaineer
• Why Python's Integer Division Floors
• Hatchet
• Extras
• Joke

Watch on YouTube

About the show

Sponsored by ScoutAPM: pythonbytes.fm/scout

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 Tuesdays at 11am PT. Older video versions available there too.

Brian #1: 6 ways to improve the architecture of your Python project (using import-linter)

• Piglei
• Using import-linter to
  • define architectural layers
  • check to make sure imports don’t violate (import from upper layers)
  • can also check for more contracts, such as
    • forbidden - disallow a specific from/to import
    • independence - list of modules that shouldn’t import from each other
• Fixing violations
  • a process introduced to set exceptions for each violation in a config file
  • then fix violations 1 at a time (nice approach)
  • use the whole team if you can
• Common methods for fixing dependency issues
  • Merging and splitting modules
  • Dependency Injection, including using protocols to keep type hints without the need to import just for types
  • Use simpler dependency types
  • Delaying function implementations
    • module global methods set by caller, or adding a simple plugin/callback system
  • Configuration driven
    • Setting import statements in a config file and using import_string() at runtime
  • Replace function calls with event-driven approaches

Michael #2: Mountaineer

• Mountaineer is a batteries-included web framework for Python and React.
• Mountaineer focuses on developer productivity above all else, with production speed a close second.
  • 📝 Typehints up and down the stack: frontend, backend, and database
  • 🎙️ Trivially easy client[HTML_REMOVED]server communication, data binding, and function calling
  • 🌎 Optimized server rendering for better accessibility and SEO
  • 🏹 Static analysis of web pages for strong validation: link validity, data access, etc.
  • 🤩 Skip the API or Node.js server just to serve frontend clients

Brian #3: Why Python's Integer Division Floors

• Guido van Rossum
• Integer division always floors (toward negative infinity) instead of truncating. (C truncates)
• 5//2 → 2
• -5//2 → -3
• 5//-2 → -3
• Reason,
  • For nice mathematical relationships with // and % (modulo).
  • a//b = quotient (q), a%b = remainder (r)
  • such that b*q + r = a, and 0 <= r < b
    • This works for both positive and negative a values
    • For negative b, the second rule has to change to 0 >= r > b
• If you truncate (like C does), you have to use abs(r) for the first rule to work.
• Theory of why C doesn’t do it this way: Probably a hardware limitation at the time when C was designed, due to “sign + magnitude” integers instead of modern two’s compliment integers.

Michael #4: Hatchet

• Hatchet is a distributed, fault-tolerant task queue which replaces traditional message brokers and pub/sub systems.
• It’s built to solve problems like concurrency, fairness, and durability
• Concurrency, Fairness, and Rate limiting: Enable FIFO, LIFO, Round Robin, and Priority Queues with built-in strategies to avoid common pitfalls.
• Architected for Resiliency: Customizable retry policies and built-in error handling to recover from transient failures.

Extras

Brian:

• Charlie Marsh on uv in PythonTest episode 216

Michael:

• Build An Audio AI App Course [free!]
• Rock Solid Python with Python Typing Course
• Coolio

Joke: Breaking Prod

Topics covered in this episode:

• zoxide
• Smart CLIs with Typer
• Python recommended officially by the US Government
• Textual tutorials at Mouse vs Python
• Extras
• Joke

Watch on YouTube

About the show

Sponsored by ScoutAPM: pythonbytes.fm/scout

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 Tuesdays at 11am PT. Older video versions available there too.

Michael #1: zoxide

• zoxide is a smarter cd command, inspired by z and autojump.
• It remembers which directories you use most frequently, so you can "jump" to them in just a few keystrokes.
• zoxide works on all major shells and platforms.

Brian #2: Smart CLIs with Typer

• Rahul Pai
• Lots of TILs here, even though I’ve been using Typer for years.
• Examples of
  • Auto-detection of arguments and types based on type hints
  • Help text is a smidge clunkier
  • Prompting for missing arguments
  • Defaulting to an enviromental variable for missing args
  • Print help if no args given
  • Explicit app and subcommands with a comparison to argparse
  • Reusable commands with result_callback
• Several topics covered in comparison with argparse
• See also Testing argparse Applications

Michael #3: Python recommended officially by the US Government

• The US government explicitly recommends memory safe languages.
• Python is one of them
• The comparison to big tech by Samuel is interesting

Brian #4: Textual tutorials at Mouse vs Python

• Mike Driscoll
• Most recently Creating a Modal Dialog For Your TUIs in Textual
• Textualize already has some pretty great documentation at textual.textualize.io
• But it’s cool to see some different tutorials on it.

Extras

Brian:

• Is UV the FUTURE of Python PACKAGING? 🐍📦 - Hynek
  • Nice context on how uv fits into all of the existing packaging challenges and some hope for the future.
• venmo feed is public by default

Michael:

• ngrok Python SDK
• Djangonauts on Talk Python
• Maybe just a new case and battery for your phone?

Joke: Ship it!

Topics covered in this episode:

• uv: Python packaging in Rust
• jpterm
• Everything You Can Do with Python's textwrap Module
• HTML First
• Extras
• Joke

Watch on YouTube

About the show

Sponsored by ScoutAPM: pythonbytes.fm/scout

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 Tuesdays at 11am PT. Older video versions available there too.

First, we are likely skipping next week folks. I’ll be at PyCon Philippines.

Brian #1: uv: Python packaging in Rust

• Suggested by Collin Sullivan
• “uv is designed as a drop-in replacement for pip and pip-tools”
• Intended to support the pip and pip-tools APIs, just use uv pip instead.
• Oh yeah, also replaces venv and virtualenv.
• And it’s super zippy, as you would expect.
• I’m still getting used to it
  • uv pip venv didn’t have --prompt at first. But that’s fixed. should get released soon.
    • first thing I tried
  • uv pip install ./ and uv pip install pytest
    • second. worked awesome
  • uv pip list
    • third thing I tried
    • not there either, but uv pip freeze is similar.
    • Issue already filed
• Seriously, I’m excited about this. It’s just that it seems I wasn’t the target workflow for this.
• See also
  • tox-uv - speed up tox with uv
  • [rye](https://lucumr.pocoo.org/2024/2/15/rye-grows-with-uv/) from Armin Ronacher, will be supported by Astral - MK:
  • Switched to this for dev. It’s excellent.
  • For some reason, doesn’t work on Docker?
  • From Henry

Michael #2: jpterm

• via David Brochart
• jpterm is a JupyterLab-like environment running in the terminal.
• What sets jpterm apart is that it builds on the shoulders of giants, one of which is Textual.
• It is designed similarly to JupyterLab, where everything is a plugin.

Brian #3: Everything You Can Do with Python's textwrap Module

• Martin Heinz
• Nice quick demo of one of my favorite builtin modules.
• Features
  • shorten text and insert placeholders
  • wrap can split lines to the same length
    • but can also just split a string into equal chunks for batch processing
  • TextWrapper class does all sorts of fancy stuff.
  • dedent is my fave. Awesome for including a multiline string in a test function as an expected outcome.

Michael #4: HTML First

• HTML First is a set of guidelines for making it easier, faster and more maintainable to build web software
• Principles
  1. Leveraging the default capabilities of modern web browsers.
  2. Leveraging the extreme simplicity of HTML's attribute syntax.
  3. Leveraging the web's ViewSource affordance.
• Practices
  • Prefer Vanilla approaches
  • Use HTML attributes for styling and behaviour
  • Use libraries that leverage HTML attributes
  • Avoid Build Steps
  • Prefer Naked HTML
  • Be View-Source Friendly

Extras

Brian:

• pytest 8.0.1 released. Fixes the parametrization order reversal I mentioned a couple episodes ago, plus some other fixes.
• Learn about dependency injection from Hynek
• If you want to jump into some Rust to help speed up Python tools, maybe check out yarr.fyi
  • I just interviewed Nicole, the creator, for Python Test, and this looks pretty cool
  • Her episode should come out in a couple of weeks.
• Ramping up more interviews for Python People. So please let me know if you’d like to be on the show or if you have suggestions for people you’d like me to interview.
• Also, I know this is weird, some people are still on X, and not like “didn’t close their account when they left”, but actually still using it. This is ironically a reverse of X-Files. “I don’t want to believe”. However, I’ve left my account open for those folks. I check it like twice a month. But eventually I’ll see it if you DM me. But really, there are easier ways to reach me.

Michael:

• PyData Pittsburg CFP
• Wyden: Data Broker Used Abortion Clinic Visitor Location Data To Help Send Targeted Misinformation To Vulnerable Women
• SciPy 2024 - Call for Proposals

Joke: Yeti tumbler

Topics covered in this episode:

• AppleCrate
• One way to package Python code right now
• Flask8 but why?
• Extra, Extra, Extra
• Extras
• Joke

Watch on YouTube

About the show

Sponsored by ScoutAPM: pythonbytes.fm/scout

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 Tuesdays at 11am PT. Older video versions available there too.

Michael #1: AppleCrate

• By Rhet Turnbull (from Building macOS Apps episode)
• AppleCrate is a tool for creating native macOS installers for your command line tools.
• It's useful for creating installers for command line tools written in any language.
• Tools written in interpreted languages like Python will need to be first processed with a tool like pyinstaller to create a standalone executable.
• AppleCrate uses Jinja2 templates to generate the files required for the installer. This allows you to use template variables in your files or command line parameters to customize the installer.

Brian #2: One way to package Python code right now

• Ned Batchelder
• An example repo with all the parts for package
• A lot of discussion and what to think about in the README (unfortunately rst and not md, but we can’t have everything)
• Includes
  • pyproject.toml
  • dev-requirements.txt
  • README.rst
  • Makefile
  • LICENSE.txt
  • .bitignore
  • .editorconfig
    • see https://editorconfig.org
• Shout out to to Packaging Python Projects on python.org, which is pretty good

Michael #3: Flask8 but why?

• Ihor Kalnytskyi: Something I really like about #ruff, a new tool for both linting and formatting in the #python ecosystem. You can literally pick any lint rule it supports and see both reasoning and examples.
• Ruff supports over 700 lint rules, many of which are inspired by popular tools like Flake8, isort, pyupgrade, and others.

Brian #4: Extra, Extra, Extra

• Flat.app
  • kinda like trello, etc. but a very simple interface that makes it pretty easy to use
• tosdr.org
  • Terms of Service; Didn’t Read
  • Kind of a wikipeda way to summarize the terms of service of different web services, and give them ratings/grades
• Why I write
  • I talked about blogging more last episode. Here’s a cool write-up by Sheena O'Connell
  • reasons
    • to remember
    • to refine my thinking
    • to impact
    • to get through hard times
    • to connect
• Three pytest Features You Will Love
  • Helen Scott at JetBrains/PyCharm
  • Fixtures, Markers, Parametrize
  • Plus shoutouts to my course and book

Extras

Brian:

• Wikipedia List of common misconceptions - just for fun
• Ear Trumpet Labs (a Potland Company) Edwina mic - just something on my wish list

Michael

• Mozilla Monitor
• Python 3.12.2
  • Upgraded all the Python apps (11 of them) in about 2 minutes and one command
• Got a Vision Pro? Try the Talk Python Courses app
• Great video event: Data Doodling with Martina Pugliese

Joke: Free Tier