μCodery

Technologist apologist, coder, speaker, writer, and teacher of any topic that interests me

Always brewing up some new small-batch artisanal bespoke free-range code. Occasionally contributing to serious OSS. The only way to learn is to try. The best way to learn is to have fun.

I post mainly about #Python #Packaging #StaticAnalysis

blog: https://blog.ucodery.com/
github: https://github.com/ucodery

Public Key

npub1zl2596sqqnvyj8428sgndyudsc4racrpdsh6k7v96etxg25zkrxsx8shy8

NIP-05 Address

ucodery_at_fosstodon.org@momostr.pink

Profile Code

nprofile1qqsp042zagqqfkzfr64rcyfkjwxcv237upskctat0xzav4ny92ptpngprpmhxue69uhhyetvv9ujumt0d4hhxarj9ecxjmntewtz4s

Publishing to

relay.momostr.pink

Author Public Key

npub1zl2596sqqnvyj8428sgndyudsc4racrpdsh6k7v96etxg25zkrxsx8shy8

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Last Notes

2026-03-18 15:15:35 UTC

Just because your software runs does not mean you have a reusable build.
A reusable build doesn’t not mean you have a deterministic build.
A deterministic build does not mean you have a predictable build.
A predictable build does not mean you have a reproducible build.
These are different levels of maturity.

2026-03-12 16:01:50 UTC

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Don’t worry, typing won’t require any changes to the language 😉

2026-03-12 14:32:29 UTC

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How beautiful. I think the shape of __class__ can more or less be treated as truely immutable. And I’m sure others play funnier games with it.

2026-03-12 05:35:32 UTC

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Oh so what I want is `type atype = ().__class__.__class__[().__class__.__class__[().__class__.__mro__[-1]]]` 😉

2026-03-12 05:32:07 UTC

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I mean that executes 🤷 but I’m try to be more specific in the real application

2026-03-12 04:20:09 UTC

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They deleted their github… I’m scared to download and unpack the distros 😱💀

2026-03-12 04:18:13 UTC

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Although I did see the fifth type as potentially a weak protection against such a definition being double-execution, as it would raise.
Though to be properly paranoid against buildings rewrite I suppose I should do `type type = ().__class__.__class__[().__class__.__class__]` 🙃

2026-03-12 04:16:09 UTC

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Ah TBH the 5 one was gilding the lily. In fact I got as far as physically writing `type Type = type[type]` before feeling silly. As a good-enough way to try and capture user-defined classes as a function input.

2026-03-12 04:02:43 UTC

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Ah, I thought those were placeholders. Perhaps it is for tensor unpacking?

2026-03-11 23:30:23 UTC

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You mean adding extra imports when I could do the same with cryptic syntax? Sounds wasteful

2026-03-11 21:06:54 UTC

I think I need this in a real Python application. Send help.
`type type = type[type(type)]`

2026-02-17 05:15:02 UTC

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Congratulations!

2026-01-28 20:27:13 UTC

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For reference, the Python cores uv is managing can come in a 18.5MB package, that deploys a 50MB Full Featured Interpreted Programming Language

2026-01-28 20:23:40 UTC

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So that means… yup the uv tool’s smallest wheel comes in just under 20MB and deploys a 31MB binary

2026-01-28 20:18:59 UTC

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Oh, it’s because it drops a 22MB binary into the venv bin folder (outside its package), sure

2026-01-28 20:17:36 UTC

What the? The #python code formatter ruff’s smallest wheel is still over 10MB? With the sdist coming in at a slim 4.5MB. Why?

2026-01-21 23:16:03 UTC

Report, it took the kids two lessons, about 1.5 hours, into the elementary into to coding class to figure out how to make the computer say 6 7

2026-01-14 21:52:18 UTC

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Thoroughly enjoyed this read. I found myself writing this definition for work just last week
> Abstractly, an ecosystem names a collection of people, processes, services, and software that collaborate, explicitly or implicitly, to further a particular technology; most often these ecosystems are anchored around a programming language. Concretely, an ecosystem is one or more distribution APIs tied to at least one software distribution server that serves a set of known file types …

2026-01-08 02:51:41 UTC

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I actually prefer to use inspect.cleandoc() over dedent() because I like that behavior better. One of the advantages of the functional approach.

2026-01-07 23:20:21 UTC

Oh interesting, looks like some extremely long coming deprecation may finally be about to land. Honestly it’ll be nice to see a this old chapter close and a new one open. Tempus fugit
#PyPI #DontNeglectTheDepricationWarnings

2025-12-22 17:27:11 UTC

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Next up is Green Thread Day
#OS2WarpedTour

2025-12-21 19:11:20 UTC

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Day 2 promises GNUs N’ Roses
#OS2WarpedTour

2025-12-21 18:21:34 UTC

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I just hope they play the hits everyone knows, like Give You Dependency Hell
#OS2WarpedTour

2025-12-21 18:19:30 UTC

Looking forward to this next concert. I hear the All American Regex is on the main stage and Wildcard is opening for them.
#OS2WarpedTour

2025-10-24 23:00:49 UTC

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Equals will also always give you the variable name. There is also a formal specifier to just to repr ‘f”{now:!r}”`

2025-10-10 22:48:24 UTC

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How is it almost 100!

2025-10-10 22:48:05 UTC

I don’t know if I’m very good at this lighting talk thing. After cutting down my slides I still have… more than both my last two conference talks put together?!

2025-10-09 20:16:22 UTC

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I use the startup file to customize the REPL prompt. I like a multi-line prompt, and this makes a python shell look much more like my bash shell than a programming language.
I like knowing what the thing being printed is as well. So every eval prints out not only repr() but type() too.
Note I maintained this for many years for the old readline-based REPL. It doesn't work so well with the new REPL; I need to work on that.
https://gist.github.com/ucodery/23f5de4f40b3e88fd9f927dc8f0d4a42
https://cdn.fosstodon.org/media_attachments/files/115/346/030/479/061/207/original/172fe0c6b52d1005.png

2025-10-07 20:31:54 UTC

For anyone still maintaining a Python 2k code base: it’s time for Euler’s Update https://mastodon.social/@hugovk/115333348041057866

2025-10-03 15:04:45 UTC

Look like you can catch me speaking next month at UW. Should be a fun time, teasing out some cognitive paradoxes. https://mastodon.social/@SeaGL/115302379124432550

2025-09-20 20:41:55 UTC

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it would not be in compliance if it errored. This is a weird double set of default behaviors where no build backend defaults to setuptools, and setuptools is the only build tool to fill in missing name and version
https://peps.python.org/pep-0517/#source-trees

2025-09-20 13:56:56 UTC

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have you looked at inline script metadata? It’s newer even than pyproject.toml but should match your needs very well.
https://packaging.python.org/en/latest/specifications/inline-script-metadata/#example

2025-08-07 22:55:54 UTC

This week I made my first little homelab site which I am genuinely proud about. Designing the few four pages was about half a day of creative work.
Despite the fact that this is a static site, only reachable on my LAN, I then spent the rest of the week learning largely for the first time how to: set up DHCP, add DNS, configure dnsmasq, create MACVLANs, how A records are resolved in macOS, set up NGINX, configure NGINX, adopt LetsEncrypt, stand up a docker registry, enable forgejo actions 😭🥴

2025-08-07 03:18:07 UTC

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“small-batch artisanal bespoke free-range code”
Well I guess I was hipster about my code before it was cool

2025-07-30 23:45:10 UTC

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I don’t have any write up on it myself, but the packaging guide I help to maintain recommends Hatch for everything https://www.pyopensci.org/python-package-guide/tutorials/get-to-know-hatch.html
And as a bonus you can still keep using uv, as hatch actually leverages uv behind the scenes for the same speed.
As a practical example there is also https://github.com/pyOpenSci/pyos-package-template

2025-07-30 22:58:41 UTC

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yup, it can also run any old script https://hatch.pypa.io/latest/how-to/run/python-scripts/
Though to be fair, Hatch is more of a framework and comes with a multiplexing environment manager built in. So I think the bigger advantage is to have your task entry points as isolated scripts.

2025-07-30 13:16:54 UTC

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also the PEP to create the standard was authored by the maintainer of Hatch, but I don’t see anyone advising hatch run.

2025-07-23 04:26:56 UTC

So happy I already published my library’s π compatible release. Looking forward to t-strings? Wishing there was even more ways to use them?Well f-yeah unlocks lazy t-strings on day one!
https://pypi.org/project/f-yeah/ f-yeah · PyPI
From: @npub1xvu…jmp8
https://mastodon.social/@hugovk/114898542498431447

2025-07-10 16:09:32 UTC

CCD, conference driven development, remains my most productive format

2025-07-10 03:23:38 UTC

of COURSE #SciPy2025 is hanging out down by the #foss river
https://cdn.fosstodon.org/media_attachments/files/114/826/787/770/047/578/original/e4c0139ea5466fc7.jpeg

2025-07-09 15:05:34 UTC

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that’s worked for me every time I collect some research papers. It’s yet to work in my email backlog, however hard I try.

2025-07-08 22:26:37 UTC

Everyone’s always talking about tach debt. But what about conference debt?? I’ve only caught 38% of #pyconus2025 talks, #SciPy2025 starts tomorrow, and then #europython2025 in less than 180 hours 😫

2025-06-30 16:44:00 UTC

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you if you don’t fork the package into two, numpy15 and numpy16, then even if you made both searchable by your program, the module cache will make the first one to loaded win for all imports. If you do fork it, all the import statements you don’t control will break because they don’t know you renamed it.

2025-06-18 20:14:46 UTC

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https://blog.ucodery.com/posts/the-trouble-with-poetry/

2025-06-18 20:13:40 UTC

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crucially for distributors like nix, using uv but NOT also a build backend means that the project has not declared any build dependencies. Not even uv, at least in the metadata. Because the build system table in pyproject.toml also contains build dependencies and projects that use only uv and no declared build system leave out this whole table.

2025-06-18 20:10:42 UTC

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uv is essentially a rewrite-it-in-rust project that clones pip. There is even a command `uv pip` that is aimed at complete compatibility. So asking, do I even want uv? is like asking, do I want to use pip to make this derivation?
I suppose for uses like nixpkgs it might not matter that uv is used, or pip, or something else. They will both technically finish with the package installed. But neither natively makes the wheel, which is our distribution format.

2025-06-18 20:05:20 UTC

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there is something wrong with Poetry too, but that is unrelated and Poetry being a good or bad choice doesn’t change UV being the wrong choice for packaging.

2025-06-18 18:44:14 UTC

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IMO it should no longer be valid to define a project without a build chain. Yes it made sense when the standard was new and helped adoption, but it makes no sense. And I’m sure setuptools maintainers aren’t thrilled about having no sunsetting date for a public API called __lagacy__

2025-06-18 18:44:08 UTC

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I don’t think the UV docs are helping the situation. The first thing you read is how to create a [project]. It’s not until later that they show you how to add in the [build-system]. Only minor footnotes that the first example is “not a project and will not be installed”. Not sure if this in intentional or not.

2025-06-18 18:38:40 UTC

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Seriously, why is seemingly every project suddenly like
🤔has the time come to move from Poetry to UV?
💅look how I ditched all my busted build scripts with UV
😂 UV is so fast. I was already using it for Python installation, now it replaces PDM too
Do you not realize how your project is actually assembled? That you are essentially reverting to relying on a setup.py script to build?

2025-06-18 18:32:16 UTC

UV IS NOT A PACKAGING TOOL!! It is just an installer! It is not a build backend, it does not know how to build you some wheels, it only knows how to delegate to other build tools. I can’t believe we are repeating this exact trap that pip fell into almost two decades later.
#python #packaging #uv #rant

2025-05-16 05:41:19 UTC

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isn’t this https://pypi.org/project/f-yeah/ ? (And yes it still needs t() support, not there yet)

2025-04-30 23:32:18 UTC

Vibe coding is when I crack open some new code and see every block has its own introductory paragraph, every function has multiple examples- sometimes with parameters that don’t exist, there are a bunch of guards that protect nothing and I start to get some Very Bad Feelings about what I am actually going to have to do here.

2025-03-24 17:47:36 UTC

#Python #PythonMeme #ProgrammingHumor
https://cdn.fosstodon.org/media_attachments/files/114/218/628/310/850/078/original/2088bae9c2d6316d.jpg

2025-03-23 05:02:48 UTC

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yes, you can call super from any method. If you use the older way of passing the class and instance into super explicitly, it can be called from anywhere.

2025-02-17 15:48:00 UTC

Bro, just one more packaging tool. I promise bro, one more and it will fix everything. You don’t even have to remove all those other ones, bro this one works with everything. C’mon bro, just install this one more, what could it hurt. Please bro just one more. bro. Bro. Bro!

2025-02-17 15:44:17 UTC

Woke from a fever dream where there was an extremely popular Python guide for those with a mis-sorted PYTHONPATH. The guild patiently walked the reader through downloading and installing the lastest LLM, then training it on all local Python projects before asking it what PYTHONPATH should be set to.
Now I only wonder how many days before this becomes a real post somewhere.
#PyghtMare #LargeLanguageMare

2025-02-08 01:01:25 UTC

Rejection from PyCon on all proposals, literally while I am traveling to PyCascades to deliver one of the same. Can’t win them all 😂. Congrats to those who were accepted!

2025-01-30 22:01:49 UTC

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have you looked into using pyenv? Especially using it with pyenv-virtualenv (which come with it by default).
https://github.com/pyenv/pyenv

2024-12-20 20:56:52 UTC

8 days later, still waiting for one lonely macOS-11 action to be picked. I’m starting to worry about its feelings.
#GitHub #SomeoneElsesMachine #TheFutureIsNow

2024-12-14 15:44:06 UTC

go, too, considered harmful

2024-12-07 04:52:59 UTC

Just added a Print command to my TUI. Now, after a long session of data searching I can just hit print and get a command that will reproduce the session that I am looking at to share or save for later. I don’t think I’ve ever seen this feature before but it should save me a lot of time
#TUI #terminal #dataViz

2024-11-29 18:59:28 UTC

Why has no one opened a German pastry chain and called it Gluten Morgen?

2024-11-19 20:19:17 UTC

Not the kind of post I wanted to be writing, nor the outcome I really wanted, but this has stolen too much of my recent development time.
blog.ucodery.com/posts/hands-off-apple
#Programming #macOS #EnvironmentIsolation

2024-11-05 17:28:17 UTC

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if you mean you want to keep it as a single file, but define dependencies properly, you may have come across https://packaging.python.org/en/latest/specifications/inline-script-metadata/# which is a very new standard, and only a small lift to scripts.

2024-11-03 14:33:28 UTC

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oh no, that would be disappointing. I have been following pix for a while now, but it haven’t tried it out for any of my projects yet. I really don’t often need that non-Python bit

2024-11-03 04:03:13 UTC

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was it possibly mine? https://blog.ucodery.com/posts/the-trouble-with-poetry/

2024-10-25 19:34:56 UTC

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this is a great tutorial, focused on new authors https://www.pyopensci.org/python-package-guide/tutorials/publish-pypi.html

2024-10-18 02:11:58 UTC

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https://fosstodon.org/@ucodery/111115378169344590

2024-10-18 02:10:38 UTC

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technically not every interpreter startup, just when the interpreter imports site. But it is always imported unless you use the suppress site flag, or the isolated mode.

2024-10-17 15:38:45 UTC

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can’t take the Ruby out of the programmer

2024-10-16 17:37:42 UTC

To all my coworkers: I’m sorry I end every communication with :wq I can’t help myself, and it probably won’t stop

2024-10-14 05:35:33 UTC

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they already made this one https://github.com/ajalt/fuckitpy

2024-10-12 02:58:59 UTC

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not exactly the question you were asking, but you can definitely crash Python if you us enough ifs with those spaces https://github.com/python/cpython/blob/5a074aab845f82f4a150c27b905dae05c337d381/Parser/lexer/state.h#L6

2024-10-04 18:54:23 UTC

I can upgrade or update my software. I can also downgrade my software. But I can’t downdate.

2024-09-24 02:49:46 UTC

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while I typically alway tend towards f-strings, in this particular case I would go with %. You might already know, but for logs specifically % is recommended because of their lazy nature, while f-strings are eagerly evaluated at the log site.

2024-09-17 14:14:35 UTC

I wonder if the ability for #Python projects to get their own language version is going to hurt the ecosystem’s typically very broad version support. Or its alternative interpreter flexibility.

2024-09-09 17:57:33 UTC

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very interesting. I made a first pass at a multi version importer myself, just to prove it can work. Mine only worked with \_\_import\_\_ and not the statement, as I was working with the syntax I wanted, not the one I had, and didn’t want to compile a new Python just for this. It seemed pretty obvious to me that Python’s @ token could be allowed after an import name, before the first . token, to disambiguate multiple versions.

2024-09-06 16:02:57 UTC

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does that make yesterday as “from Wario”?

2024-08-29 20:07:57 UTC

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that’s an awesome companion site! I’d bookmark it if I hadn’t just written the same thing into this tool 😎

2024-08-29 20:04:19 UTC

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the source is always there 😉I’m Sure there is a way to cross compile to android, but I don’t know what that is and I have absolutely nowhere to test it myself.

2024-08-29 19:34:45 UTC

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is that something that can be done with github actions? I’ve never had a reason to target android before. I’m honestly not even sure got it would work in that environment

2024-08-29 19:21:23 UTC

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also, wow, the Python Package Index is scary. There is a published package under the name "class", "except", "0", and "1"! What are these even for??!?

2024-08-29 19:10:53 UTC

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Not that I have anything against pypi.org. It does its job great. I have spend many days of my life there and its never been _bad_. I just don't need an entire tab constellation to achieve what can be done in a few terminal lines

2024-08-29 19:08:58 UTC

getting pretty psyched about this TUI! Soon I won't have to use pypi.org for nearly anything.
https://github.com/ucodery/kayak/releases/tag/v0.7.0
#Python #Packaging #PyPI #TUI
https://cdn.fosstodon.org/media_attachments/files/113/046/853/449/308/345/original/eaf21473c4a819c1.mp4

2024-08-28 02:35:27 UTC

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it’s all good. Would love to be of help if this was more than just void screaming. IIRC isort v4 began to auto generate all of its options documentation, which was actually a good thing. With the number of options, all specifiable via command line, or ini, or toml, it was a real chore to cover everything.
I’ll see what low-hanging options there are for TOC.

2024-08-28 01:40:39 UTC

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do you have something specific I could work on? My favorite parts of working on isort have been improving the documentation. But it’s true that isort has embraced just about every tuning knob ever suggested over the years :/

2024-08-28 01:34:51 UTC

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some commands treat a directory path ending in “/“ differently from the same path without “/“. That plus I use tab-complete even when I know the name, which always (? I think at least always with readline) adds the “/“.

2024-08-19 04:58:58 UTC

#Python #C #ProgrammingHumor
https://cdn.fosstodon.org/media_attachments/files/112/986/850/341/724/016/original/260074205836a6ad.jpeg

2024-08-13 16:44:14 UTC

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I think I mostly agree with you. While I mainly interact with Python via wheels, and using Poetry within that ecosystem is what drove me mad, I understand they are not a solution for everyone. But to me that is even more why Poetry's hidden nature is bad for the entire ecosystem. When one tool uses custom metadata fields with bespoke syntax, that makes is so much harder to support use of that tool outside of their original intended target audience.

2024-08-12 20:56:43 UTC

https://blog.ucodery.com/posts/the-trouble-with-poetry/
Decided to finally write down most of my feelings whenever I find out a package I use or a package I want to help is using Poetry and why that's never a good discovery
#Python #Packaging #PythonPoetry

2024-08-11 19:39:45 UTC

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that’s true but storage is not really the hard part. Storage is cheap and while the total size of PyPI is impressive, still I have a local hard drive will a full mirror for offline work. And the cost of distribution has been taken care of for a while now by the extremely generous Fastly. But the computing cost of build a wheel for every potential target platform for every new package version to PyPI would be immense

2024-08-11 14:38:58 UTC

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it is largely a funding issue https://github.com/psf/fundable-packaging-improvements/issues/19 though of a single solution for the entire ecosystem is never as simple as just some money

2024-08-08 21:17:41 UTC

Woohoo PyCascades has all their 2024 videos up, including my Intro to Introspection! Learn about namespaces, the object model, scopes, and the inspect module through a tiny mystery
https://www.youtube.com/watch?v=bCIDqS1sY5c
#Python #PyCascades2024 #PyCascades #TechConference

2024-08-06 02:53:52 UTC

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what, you mean to tell me you’ve never copied a list by using variable unpacking assignment?? https://fosstodon.org/@ucodery/112656152072938727

2023-12-14 05:48:59 UTC

It’s almost the end of the year but not too late to get your company to support the free software it uses. Maybe they don’t have an easy way to donate to individuals, but I’ll bet they have education budget that never really gets used up and has a clear and easy approval process. And a lot of your favorite open source contributors write books, or publish lessons. I know you’ve heard them talk about it. You don’t have to read it; though I bet it’s great.
#FOSSSupport #OpenSource