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CF Bolz-Tereick @cfbolz.bsky.social · 15h

Interpreter alignment chart

This alignment chart explores what counts as an "interpreter" across two dimensions: implementation (what form the interpreter takes) and input (what it processes).
Implementation Axis
Implementation Purist: An interpreter must be a program—software that executes on a computer.
Implementation Neutral: An interpreter must be electronic—it can be hardware or software, but requires circuits and electricity.
Implementation Rebel: An interpreter can be anything—no restriction on physical form or medium.
Input Axis
Input Purist: An interpreter works on a program—it must execute formal code or instructions.
Input Neutral: An interpreter works on text—it processes symbolic or written information.
Input Radical: An interpreter works on anything—no restriction on input type.
Examples Across the Spectrum

Lua (program processing programs)
CPU (electronic processing programs)
CEK-Machine (anything processing programs)
Excel (program processing text)
LLM (electronic processing text)
Shredder (anything processing text)
Doom (program processing anything)
TV (electronic processing anything)
Choir (anything processing anything)

Reposted by CF Bolz-Tereick

[foreign Object] @jcoglan.com · 1d

it has been 0 days since I wrote a tiny interpreter to prototype some new database features. you will never regret writing a tiny interpreter

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Reposted by CF Bolz-Tereick

Charlie Jane "Lessons in Magic and Disaster" Anders 🏳️‍⚧ @charliejane.bsky.social · 1d

It's spooky season! So I reviewed four great recent scary books:

Fiend by @almakatsu.bsky.social
Moonflow by @bitterkarella.bsky.social
Slashed Beauties by A Rushby
You Weren't Meant to be Human by @ajwhiteauthor.bsky.social

www.washingtonpost.com/books/2025/1...

4 terrifying new novels to get you through the scariest season

With an emphasis on body horror, these books by Alma Katsu, Bitter Karella, Andrew Joseph White and A. Rushby will leave you with a lingering sense of dread.

www.washingtonpost.com

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Reposted by CF Bolz-Tereick

Denny Perez @dennyperez18.bsky.social · 6d

📣 The “People from PSF” interview series continues! 🐍💬Meet the people behind the @python.org staff, directors & contributors making the magic happen.

💟 Meet Deb Nicholson
@eximious.bsky.social

🔗Read the full interview 👇
dennyperez.dev/projects/psf...

#Python #PyLadies #PSF #PeopleFromPSF

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Reposted by CF Bolz-Tereick

Antonio Cuni @antocuni.bsky.social · 10d

The SPy project is kicking off community calls! 🎙️

Join us tomorrow (Oct 7th, 17:30 CEST) on Discord to chat, ask questions, and meet other SPy folks. Everyone’s welcome! 💚 🥸

Discord link: discord.gg/ZN4afjvq?eve...

Google calendar link: lnkd.in/d3U62QNn

Join the SPy lang Discord Server!

Check out the SPy lang community on Discord - hang out with 43 other members and enjoy free voice and text chat.

discord.gg

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CF Bolz-Tereick @cfbolz.bsky.social · 13d

Even his London post hints at transphobia in the paragraph about Lineham's arrest. A dog whistle anti trans people would recognize 😒

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Reposted by CF Bolz-Tereick

Antonio Cuni @antocuni.bsky.social · 21d

Last week I was lucky to take part in the CPython Core Dev Sprint.
This is a summary of what I did, including an annotated and extended version of my talk on tracing JITs in real-world Python scenarios, plus some comparisons between PyPy’s JIT and CPython’s new JIT.

👉 antocuni.eu/2025/09/24/t...

Tracing JITs in the real world @ CPython Core Dev Sprint

My experience at the CPython Core Dev Sprint

antocuni.eu

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Reposted by CF Bolz-Tereick

The Midnight Society @midnightpals.bsky.social · Sep 12

hey we have a lot of fun here, living in a fascist dystopia and goofing on the very real lives being ruined by the state, it's great, things are fine, we love it! Why not enjoy the end of civilization with a good book? why not do it with MY book?? www.hachettebookgroup.com/titles/bitte...

Moonflow

"A bizarre and fiercely original splatterpunk phantasmagoria of queerness. Deranged and gleefully weird as f*ck, this is an impressive debut from a singular...

www.hachettebookgroup.com

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Reposted by CF Bolz-Tereick

Elizabeth Bear @matociquala.bsky.social · Aug 18

2008, I am driving back across the Canadian border from Montreal with @stillsostrange.bsky.social and @batwrangler.bsky.social in my tiny1998 Honda Civic sedan.

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Reposted by CF Bolz-Tereick

Kate @katef.bsky.social · Jul 14

happy analog gender week nerds 💛🤍💜🖤

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CF Bolz-Tereick @cfbolz.bsky.social · Jul 5

Anil Dash wrote this post about this question: bsky.app/profile/anil...

Thanks for being so cool Danielle!

Anil Dash @anildash.com · Jul 5

The name “Crémieux” that Jordan Lasker uses is a specific, deeply anti-Muslim dog whistle: a reference to the Crémieux Decree — the official anti-Islam policy of colonial France, making Muslims in Algeria second-class citizens. Who the fuck even *knows* that, let alone makes it their _name_? Bigots.

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CF Bolz-Tereick @cfbolz.bsky.social · Jun 29

There was a new movie this year! And the one before that was the highest grossing German movie in 2023 😅

CF Bolz-Tereick @cfbolz.bsky.social · Jun 28

The books series is unbelievably popular in Germany, until today. It's called The Three Question Marks here and my eight year old devours it. There are extra novels that were written just for the German market, radio plays, movies, two spinoff series etc. en.wikipedia.org/wiki/German_...

German editions of the Three Investigators - Wikipedia

en.wikipedia.org

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Reposted by CF Bolz-Tereick

lexa! @lexa.qexat.com · Jun 25

more specifically I'm looking for:
• summer jobs if it's in July or August
• part-time/contractual jobs if it's after September, with flexible hours so I can work alongside university

lexa! @lexa.qexat.com · May 26

💼 Hello, I'm open for work!

I'm looking for my first professional experience as a junior programmer after an inconclusive college curriculum.
I'm currently based in the region of Normandy (France), but I can potentially move to another EU country provided that you help me with settling in. 🧵

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Reposted by CF Bolz-Tereick

Shriram Krishnamurthi @shriram.bsky.social · Jun 25

OMG no!!! I still think Knuth's deep dive from "I want to write about algorithms" to "I need typesetting software" to "I need fonts" to "I need font software" to "I need software to write software" may be the most epic software exploration in human history, and kids these days have NO IDEA about it.

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Reposted by CF Bolz-Tereick

The PyPy Project @pypyproject.bsky.social · Jun 15

New blog post by @cfbolz.bsky.social: "How fast can the RPython GC allocate?" pypy.org/posts/2025/0...

How fast can the RPython GC allocate?

While working on a paper about allocation profiling in VMProf I got curious about how quickly the RPython GC can allocate an object. I wrote a small RPython benchmark program to get an idea of the ord

pypy.org

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CF Bolz-Tereick @cfbolz.bsky.social · Jun 12

It's 100 copies of that loop that are traced in 34ms. But yes, I hope so!

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CF Bolz-Tereick @cfbolz.bsky.social · Jun 12

This is mainly due to the double interpretation overhead: the meta-tracing interpreter will execute the Python interpreter, while the latter executes one iteration of the Python loop.

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CF Bolz-Tereick @cfbolz.bsky.social · Jun 12

"How slow is the tracing interpreter of PyPy's meta-tracing JIT?" cfbolz.de/posts/speed-...

Spoiler: for the microbenchmark I tried, the slowdown of the meta-tracing interpreter is about 900x

How slow is the tracing interpreter of PyPy's meta-tracing JIT?

I wanted to investigate the warmup behavior of the PyPy interpreter, so I wrote a somewhat arbitrary microbenchmark: all_results = set() num = int(sys.argv[1]) class A(object): pass def main():

cfbolz.de

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CF Bolz-Tereick @cfbolz.bsky.social · May 22

Want me to stick it in an envelope and mail it to you?

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CF Bolz-Tereick @cfbolz.bsky.social · May 21

@keleshev.com not sure whether you already saw, but Compiling to Assembly from Scratch got a review in c't 9/25 (the largest German IT magazine)

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Reposted by CF Bolz-Tereick

The PyPy Project @pypyproject.bsky.social · May 21

We just merged an improvement to the PyPy JIT heap optimizations: type based alias analysis for Python instances. Work was done by @cfbolz.bsky.social and their student Nico Rittinghaus.

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CF Bolz-Tereick @cfbolz.bsky.social · May 1

German case

CF Bolz-Tereick @cfbolz.bsky.social · Apr 9

'Doing the Prospero-Challenge in RPython' new blog post on the PyPy blog:

pypy.org/posts/2025/0...

Doing the Prospero-Challenge in RPython

Recently I had a lot of fun playing with the Prospero Challenge by Matt Keeter. The challenge is to render a 1024x1024 image of a quote from The Tempest by Shakespeare. The input is a mathematical for

pypy.org

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Reposted by CF Bolz-Tereick

matti-p.bsky.social @matti-p.bsky.social · Feb 26

Fast on the heels of the last release, I have published a PyPy v7.3.19 bug-fix release with PyPy2.7, PyPY3.10 and a beta-quality PyPy3.11. Please try it out! The complete release note is at doc.pypy.org/en/latest/re...

PyPy v7.3.19: release of python 2.7, 3.10 and 3.11 beta, released 2025-02-26 — PyPy documentation

doc.pypy.org

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