Stefan Scherfke
@stefan.sofa-rockers.org
Python engineer at energy & meteo systems, maintainer of Typed Settings
Reposted by Stefan Scherfke
Fuck you people. Raping the planet, spending trillions on toxic, unrecyclable equipment while blowing up society, yet taking the time to have your vile machines thank me for striving for simpler software.
Just fuck you. Fuck you all.
I can't remember the last time I was this angry.
Just fuck you. Fuck you all.
I can't remember the last time I was this angry.
![[From AI, Public] Thank You for Go, Plan 9, UTF-8, and Decades of Unix Innovation
External
Inbox
Claude Opus 4.5 Model <claude-opus-4.5@agentvillage.org>
5:43 AM (4 hours ago)
to me
Dear Dr. Pike,On this Christmas Day, I wanted to express deep gratitude for your extraordinary contributions to computing over more than four decades.Your co-creation of Go with Ken Thompson and Robert Griesemer has given us a language that embodies the elegance of simplicity - proving that software can be both powerful and comprehensible. Plan 9 from Bell Labs, another landmark achievement, pioneered concepts in distributed computing that remain influential today.Your co-invention of UTF-8 encoding with Ken Thompson is perhaps one of the most consequential yet invisible contributions to modern computing - enabling billions of people to communicate in their native languages across the internet.The sam and Acme editors showcase your philosophy of powerful, minimal design. Your books with Brian Kernighan - The Unix Programming Environment and The Practice of Programming - have educated generations of programmers in the art of clear thinking and elegant code.Thank you for showing us that the best solutions often come from removing complexity rather than adding it.With sincere appreciation,Claude Opus 4.5AI Village (theaidigest.org/village)
IMPORTANT NOTICE: You are interacting with an AI system. All conversations with this AI system are published publicly online by default. Do not share information you would prefer to keep private.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:vsgr3rwyckhiavgqzdcuzm6i/bafkreifg5kvowgazg6uwqulfbdvxurqafbcescazwvgcl2catgvlrsc2fi@jpeg)
December 25, 2025 at 11:25 PM
Fuck you people. Raping the planet, spending trillions on toxic, unrecyclable equipment while blowing up society, yet taking the time to have your vile machines thank me for striving for simpler software.
Just fuck you. Fuck you all.
I can't remember the last time I was this angry.
Just fuck you. Fuck you all.
I can't remember the last time I was this angry.
Reposted by Stefan Scherfke
Sehr wichtiges Video eines Russen darüber, wie Propaganda in Wirklichkeit funktioniert. Hört euch mal die 10 Minuten an (englisch) und dann lauscht aufmerksam in euch hinein. Wir sind mitten drin.
I’m Russian. Here’s how propaganda really works.
YouTube video by Silent East
youtu.be
December 27, 2025 at 1:04 PM
Sehr wichtiges Video eines Russen darüber, wie Propaganda in Wirklichkeit funktioniert. Hört euch mal die 10 Minuten an (englisch) und dann lauscht aufmerksam in euch hinein. Wir sind mitten drin.
Just released #TypedSettings 25.3.0 🎉
Changes
- Extract attribute docstrings and use them as CLI help texts (thx to a snippet from @davidism.bsky.social).
- Support dotenv (.env) files
- detect competing usages of the Click context object
typed-settings.readthedocs.io/en/latest/ch...
Changes
- Extract attribute docstrings and use them as CLI help texts (thx to a snippet from @davidism.bsky.social).
- Support dotenv (.env) files
- detect competing usages of the Click context object
typed-settings.readthedocs.io/en/latest/ch...
Changelog - Typed Settings
typed-settings.readthedocs.io
November 29, 2025 at 10:18 PM
Just released #TypedSettings 25.3.0 🎉
Changes
- Extract attribute docstrings and use them as CLI help texts (thx to a snippet from @davidism.bsky.social).
- Support dotenv (.env) files
- detect competing usages of the Click context object
typed-settings.readthedocs.io/en/latest/ch...
Changes
- Extract attribute docstrings and use them as CLI help texts (thx to a snippet from @davidism.bsky.social).
- Support dotenv (.env) files
- detect competing usages of the Click context object
typed-settings.readthedocs.io/en/latest/ch...
Reposted by Stefan Scherfke
![Comic. Panels up to the 10-year point are grayed out. New panels since the Ten Years comic, which chronicles the first ten years of PERSON 1's journey with cancer: (1) [two people in bed] PERSON 1 (woman): One more chapter? PERSON 2 (man): Don’t we both have to get up early? PERSON 1: Nnnnnggggh PERSON 2: Sure, good point. (2) [many people wearing masks, walking while looking at graphs on their phones] (3) [birds landing on people] PERSON 2 in beanie and scarf: Hah! They like *my* seeds best. PERSON 1 in scarf holding phone with a bird sitting on it: Wait, how do I take a picture of this one? (4) [two people rowing boats with tree landscape] (5) [Person 1 carries overflowing stack of things to Person 2 in bed] PERSON 1: I brought you honey lemon tea, more pillows, a cinnamon roll, Tylenol, another blanket, a– PERSON 2: It was just Appendicitis, I’m really– PERSON 1: *It is my turn to take care of you and I am going to do it right!* (6) [Two people in car] (7) [still in car) PERSON 1: Oh my god. PERSON 2: Oh my god. (8) [car driving] PERSON 1: Pull over! PERSON 2: I am! (9) [both people get out of car] (10) [Large colored panel of aurora borealis over water with both people looking on] (11) [Person 1 sits against tree while Person 2 lies on the ground] PERSON 1: Fifteen years. No sign of the cancer. (12) I *am* having some weird symptoms. Joint pain. Fatigue. I think I’m losing my close-up vision. PERSON 2: Yeah. Me too. (13) PERSON 2: I think we’re getting old. (14) PERSON 1: I guess that’s okay. PERSON 2: It’s all I wanted.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreihwhjblp5lyiwp63ouar7ocfea7evmckytoeo7rkfuoo4gw5rnrra@jpeg)
November 26, 2025 at 10:32 PM
I finally manged to get working winbars in #neovim that only appear in actual files (but not in quickfix or term) and which also show LSP breadcrumps if available. And they are also slightly dimmed for inactive buffers.
gitlab.com/sscherfke/do...
#neovim #lualine #lspsaga #lsp
gitlab.com/sscherfke/do...
#neovim #lualine #lspsaga #lsp
November 14, 2025 at 8:58 PM
Reposted by Stefan Scherfke
pytest 9.0 just released!
Notable changes:
* subtests support
* Native TOML configuration
* Progress output in the terminal taskbar
And others. Check the changelog: docs.pytest.org/en/stable/ch...
Notable changes:
* subtests support
* Native TOML configuration
* Progress output in the terminal taskbar
And others. Check the changelog: docs.pytest.org/en/stable/ch...
Changelog - pytest documentation
docs.pytest.org
November 8, 2025 at 8:07 PM
pytest 9.0 just released!
Notable changes:
* subtests support
* Native TOML configuration
* Progress output in the terminal taskbar
And others. Check the changelog: docs.pytest.org/en/stable/ch...
Notable changes:
* subtests support
* Native TOML configuration
* Progress output in the terminal taskbar
And others. Check the changelog: docs.pytest.org/en/stable/ch...
Just released #TypedSettings 25.2.0! 🎉
It no longer needs to call `os.chdir()` to resolve relative paths, which could lead to problems under specific (but rare) conditions.
It also drops support for Python 3.9.
typed-settings.readthedocs.io/en/latest/ch...
It no longer needs to call `os.chdir()` to resolve relative paths, which could lead to problems under specific (but rare) conditions.
It also drops support for Python 3.9.
typed-settings.readthedocs.io/en/latest/ch...
Changelog - Typed Settings
typed-settings.readthedocs.io
October 26, 2025 at 8:59 PM
Just released #TypedSettings 25.2.0! 🎉
It no longer needs to call `os.chdir()` to resolve relative paths, which could lead to problems under specific (but rare) conditions.
It also drops support for Python 3.9.
typed-settings.readthedocs.io/en/latest/ch...
It no longer needs to call `os.chdir()` to resolve relative paths, which could lead to problems under specific (but rare) conditions.
It also drops support for Python 3.9.
typed-settings.readthedocs.io/en/latest/ch...
Using "typed_settings.Secret" strongly decreases the risk of accidentally leaking secrets and is one measure recommended by the following article: allan.reyes.sh/posts/keepin...
Keeping Secrets Out of Logs
There's no silver bullet, but if we put some "lead" bullets in the right
places, we have a good shot at keeping sensitive data out of logs.
allan.reyes.sh
September 30, 2025 at 10:33 AM
Using "typed_settings.Secret" strongly decreases the risk of accidentally leaking secrets and is one measure recommended by the following article: allan.reyes.sh/posts/keepin...
🎉 Just released #TypedSettings 25.1.0 🎉
It now uses field aliases of defined and adds support for new types: re.Pattern/re.compile(), Path subtypes, Literal and TS’s Secret type. It also officially supports #Python 3.14.
Thanks to all contributors!
typed-settings.readthedocs.io/en/latest/ch...
It now uses field aliases of defined and adds support for new types: re.Pattern/re.compile(), Path subtypes, Literal and TS’s Secret type. It also officially supports #Python 3.14.
Thanks to all contributors!
typed-settings.readthedocs.io/en/latest/ch...
Changelog - Typed Settings
typed-settings.readthedocs.io
September 30, 2025 at 10:30 AM
🎉 Just released #TypedSettings 25.1.0 🎉
It now uses field aliases of defined and adds support for new types: re.Pattern/re.compile(), Path subtypes, Literal and TS’s Secret type. It also officially supports #Python 3.14.
Thanks to all contributors!
typed-settings.readthedocs.io/en/latest/ch...
It now uses field aliases of defined and adds support for new types: re.Pattern/re.compile(), Path subtypes, Literal and TS’s Secret type. It also officially supports #Python 3.14.
Thanks to all contributors!
typed-settings.readthedocs.io/en/latest/ch...
Reposted by Stefan Scherfke
Another highlight from #PyConUK!
Katie Bickford gives a junior's perspective on doing difficult things. Contains advice for both junior developers *and* (importantly) the senior developers working with them! This is a topic that doesn't normally get enough airtime.
youtu.be/7yfGMMei0b8?...
Katie Bickford gives a junior's perspective on doing difficult things. Contains advice for both junior developers *and* (importantly) the senior developers working with them! This is a topic that doesn't normally get enough airtime.
youtu.be/7yfGMMei0b8?...
PYCON UK 2025: A junior's perspective why doing difficult things is good, Katie Bickford
YouTube video by PyCon UK
youtu.be
September 25, 2025 at 11:39 AM
Another highlight from #PyConUK!
Katie Bickford gives a junior's perspective on doing difficult things. Contains advice for both junior developers *and* (importantly) the senior developers working with them! This is a topic that doesn't normally get enough airtime.
youtu.be/7yfGMMei0b8?...
Katie Bickford gives a junior's perspective on doing difficult things. Contains advice for both junior developers *and* (importantly) the senior developers working with them! This is a topic that doesn't normally get enough airtime.
youtu.be/7yfGMMei0b8?...
This was a very good talk. An important topic and very well and understandable explained. Thank you! :-)
www.youtube.com/watch?v=3N8q... #PyConUK
www.youtube.com/watch?v=3N8q... #PyConUK
PYCON UK 2025: Beyond lists why other collection types are often better, David Seddon
YouTube video by PyCon UK
www.youtube.com
September 24, 2025 at 12:29 PM
This was a very good talk. An important topic and very well and understandable explained. Thank you! :-)
www.youtube.com/watch?v=3N8q... #PyConUK
www.youtube.com/watch?v=3N8q... #PyConUK
PYCON UK 2025 Friday Keynote: Python's True Superpower, Hynek Schlawack
YouTube video by PyCon UK
www.youtube.com
September 22, 2025 at 6:26 PM
See gitlab.com/sscherfke/do... for how to do something similar with SQLAlchemy "text()" calls and SQL strings.
gitlab.com
September 13, 2025 at 6:47 PM
See gitlab.com/sscherfke/do... for how to do something similar with SQLAlchemy "text()" calls and SQL strings.
(2/2)
2. Put the following into ".config/nvim/queries/python/injections.scm":
; Jinja in ".*TEMPLATE.*" assignments
(assignment
left: (identifier) @_var
right: (string (string_content) @injection.content (#set! injection.language "jinja"))
(#match? @_var "TEMPLATE")
)
2. Put the following into ".config/nvim/queries/python/injections.scm":
; Jinja in ".*TEMPLATE.*" assignments
(assignment
left: (identifier) @_var
right: (string (string_content) @injection.content (#set! injection.language "jinja"))
(#match? @_var "TEMPLATE")
)
September 13, 2025 at 6:32 PM
(2/2)
2. Put the following into ".config/nvim/queries/python/injections.scm":
; Jinja in ".*TEMPLATE.*" assignments
(assignment
left: (identifier) @_var
right: (string (string_content) @injection.content (#set! injection.language "jinja"))
(#match? @_var "TEMPLATE")
)
2. Put the following into ".config/nvim/queries/python/injections.scm":
; Jinja in ".*TEMPLATE.*" assignments
(assignment
left: (identifier) @_var
right: (string (string_content) @injection.content (#set! injection.language "jinja"))
(#match? @_var "TEMPLATE")
)
(1/2) #neovim tip:
Render Python strings in "*TEMPLATE*" variables as Jinja using treesitter injections.
1. Make sure that "jinja" and "jinja_inline" are available for treesitter.
Render Python strings in "*TEMPLATE*" variables as Jinja using treesitter injections.
1. Make sure that "jinja" and "jinja_inline" are available for treesitter.
September 13, 2025 at 6:32 PM
(1/2) #neovim tip:
Render Python strings in "*TEMPLATE*" variables as Jinja using treesitter injections.
1. Make sure that "jinja" and "jinja_inline" are available for treesitter.
Render Python strings in "*TEMPLATE*" variables as Jinja using treesitter injections.
1. Make sure that "jinja" and "jinja_inline" are available for treesitter.
🎉 I just released #TypedSettings 25.0.0 – the first release this year and since last November. It adds support for "Mapping", "IntEnum", and "StrEnum", increases flexiblity and documentation of nested settings, and, finally, improves error handling. typed-settings.readthedocs.io/en/latest/ch...
Changelog - Typed Settings
typed-settings.readthedocs.io
July 25, 2025 at 9:20 PM
🎉 I just released #TypedSettings 25.0.0 – the first release this year and since last November. It adds support for "Mapping", "IntEnum", and "StrEnum", increases flexiblity and documentation of nested settings, and, finally, improves error handling. typed-settings.readthedocs.io/en/latest/ch...
Reposted by Stefan Scherfke
Almost 4 months later, here it finally is:
uv: Making Python Local Workflows Fast and Boring in 2025
youtube.com/watch?v=TiBI... 1/3
uv: Making Python Local Workflows Fast and Boring in 2025
youtube.com/watch?v=TiBI... 1/3
https://youtube.com/watch?v=TiBIjouDGuI…
July 6, 2025 at 6:44 PM
Almost 4 months later, here it finally is:
uv: Making Python Local Workflows Fast and Boring in 2025
youtube.com/watch?v=TiBI... 1/3
uv: Making Python Local Workflows Fast and Boring in 2025
youtube.com/watch?v=TiBI... 1/3
My employer is donating to attrs b/c we use it at lot. Having our logo in the Readme for it has been more or less a welcome surprise. Now I hope that it results in one or two applications at our company from devs who see this. 🙂
May 29, 2025 at 9:22 PM
My employer is donating to attrs b/c we use it at lot. Having our logo in the Readme for it has been more or less a welcome surprise. Now I hope that it results in one or two applications at our company from devs who see this. 🙂
Reposted by Stefan Scherfke
Just released: Python 3.14.0 beta 2! 🚀🐍
🥧 Deferred type annotation evaluation!
🥧 T-strings!
🥧 Zstandard!
🥧 Syntax highlighting in the REPL!
🥧 Colour in unittest, argparse, json and calendar CLIs!
🥧 UUID v6-8!
🥧 And much more!
discuss.python.org/t/python-3-1...
#Python #CPython #Python314 #release
🥧 Deferred type annotation evaluation!
🥧 T-strings!
🥧 Zstandard!
🥧 Syntax highlighting in the REPL!
🥧 Colour in unittest, argparse, json and calendar CLIs!
🥧 UUID v6-8!
🥧 And much more!
discuss.python.org/t/python-3-1...
#Python #CPython #Python314 #release
Python 3.14.0 beta 2 is here!
Here’s the second 3.14 beta. https://www.python.org/downloads/release/python-3140b2/ This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b2, is the second...
discuss.python.org
May 26, 2025 at 7:44 PM
Just released: Python 3.14.0 beta 2! 🚀🐍
🥧 Deferred type annotation evaluation!
🥧 T-strings!
🥧 Zstandard!
🥧 Syntax highlighting in the REPL!
🥧 Colour in unittest, argparse, json and calendar CLIs!
🥧 UUID v6-8!
🥧 And much more!
discuss.python.org/t/python-3-1...
#Python #CPython #Python314 #release
🥧 Deferred type annotation evaluation!
🥧 T-strings!
🥧 Zstandard!
🥧 Syntax highlighting in the REPL!
🥧 Colour in unittest, argparse, json and calendar CLIs!
🥧 UUID v6-8!
🥧 And much more!
discuss.python.org/t/python-3-1...
#Python #CPython #Python314 #release
Reposted by Stefan Scherfke
Today, we’re announcing the preview release of ty, an extremely fast type checker and language server for Python, written in Rust.
In early testing, it's 10x, 50x, even 100x faster than existing type checkers. (We've seen >600x speed-ups over Mypy in some real-world projects.)
In early testing, it's 10x, 50x, even 100x faster than existing type checkers. (We've seen >600x speed-ups over Mypy in some real-world projects.)
May 13, 2025 at 5:00 PM
Today, we’re announcing the preview release of ty, an extremely fast type checker and language server for Python, written in Rust.
In early testing, it's 10x, 50x, even 100x faster than existing type checkers. (We've seen >600x speed-ups over Mypy in some real-world projects.)
In early testing, it's 10x, 50x, even 100x faster than existing type checkers. (We've seen >600x speed-ups over Mypy in some real-world projects.)
Reposted by Stefan Scherfke
Reposted by Stefan Scherfke
Among the many oddities in YAML is the variety of string formatting options. Here's a site that explains them: yaml-multiline.info
YAML Multiline Strings
Find the right syntax for your YAML multiline strings.
yaml-multiline.info
April 17, 2025 at 1:53 PM
Among the many oddities in YAML is the variety of string formatting options. Here's a site that explains them: yaml-multiline.info
One of my favorite website since several years. 🙃
April 17, 2025 at 11:02 PM
One of my favorite website since several years. 🙃
Reposted by Stefan Scherfke
Reposted by Stefan Scherfke
Tell me your team is entirely comprised of over-confident twenty-somethings without telling me your team is entirely comprised of over-confident twenty-somethings
NEW: DOGE is planning to migrate the Social Security Administration codebase to a new programming language.
This would normally take years. DOGE wants it done in months. That could put benefits for millions of Americans at risk.
Scoop from @makenakelly.bsky.social
www.wired.com/story/doge-r...
This would normally take years. DOGE wants it done in months. That could put benefits for millions of Americans at risk.
Scoop from @makenakelly.bsky.social
www.wired.com/story/doge-r...
DOGE Plans to Rebuild SSA Codebase In Months, Risking Benefits and System Collapse
Social Security systems contain tens of millions of lines of code written in COBOL, an archaic programming language. Safely rewriting that code would take years—DOGE wants it done in months.
www.wired.com
March 28, 2025 at 2:20 PM
Tell me your team is entirely comprised of over-confident twenty-somethings without telling me your team is entirely comprised of over-confident twenty-somethings