# spy part — RSS Amplifier Recent posts from the 2 feeds in the RSS Amplifier directory that cover spy part. Page: Feed: --- ## [Why Python Is Slow: Talking about SPy on the Behind the Commit Podcast](https://antocuni.eu/2026/05/01/why-python-is-slow-talking-about-spy-on-the-behind-the-commit-podcast/) _2026-05-01 · Antonio Cuni's blog_ Why Python Is Slow: Talking about SPy on the Behind the Commit Podcast During EuroPython 2025 I had the pleasure to talk to Mia Bajić for her podcast Behind The Commit . In the chat we mainly talk about Python performance and how SPy tries to improve them. Now the full episode is live: you can watch it on Youtube or listen on Spotify ## [Inside SPy, part 2: Language semantics](https://antocuni.eu/2026/03/25/inside-spy-part-2-language-semantics/) _2026-03-25 · Antonio Cuni's blog_ Inside SPy 🥸, part 2: Language semantics This is the second post of the Inside SPy series. The firstpost was mostly about motivations andgoals of SPy . This post will cover in more detail thesemantics of SPy, including the parts which make it different from CPython. We will talk about phases of execution, colors , redshifting, the very peculiar waySPy implements static typing, and we will start… ## [My first OSS commit turns 20 today](https://antocuni.eu/2026/03/22/my-first-oss-commit-turns-20-today/) _2026-03-22 · Antonio Cuni's blog_ My first OSS commit turns 20 today Some time ago I realized that it was 20 years since I started to contribute toOpen Source. It's easy to remember, because I started to work on PyPy as part of mymaster's thesis and I graduated in 2006. So, I did a bit of archeology to find the first commit : $ cd ~/pypy/pypy && git show 1a086d45d9 --no-patch commit 1a086d45d9 Author: Antonio Cuni… ## [The Importance of Worldbuilding](https://mortimus.substack.com/p/the-importance-of-worldbuilding) _2026-02-04 · Rohan Uddin · Mortimus_ A talk by the creator of Disco Elysium ## [Inside SPy, part 1: Motivations and Goals](https://antocuni.eu/2025/10/29/inside-spy-part-1-motivations-and-goals/) _2025-10-29 · Antonio Cuni's blog_ Inside SPy 🥸, part 1: Motivations and Goals This is the first of a series of posts in which I will try to give a deep explanation of SPy , including motivations, goals, rules of thelanguage, differences with Python and implementation details. This post focuses primarily on the problem space : why Python is fundamentally hardto optimize, what trade-offs existing solutions require, and where… ## [Tracing JITs in the real world @ CPython Core Dev Sprint](https://antocuni.eu/2025/09/24/tracing-jits-in-the-real-world--cpython-core-dev-sprint/) _2025-09-24 · Antonio Cuni's blog_ Tracing JITs in the real world @ CPython Core Dev Sprint Last week I got to take part in the CPython Core Developer Sprint inCambridge, hosted by ARM and brilliantly organized by Diego Russo -- about ~50 core devs and guests were there, and I was excited to join as oneof the guests. I had three main areas of focus: C API : this was a follow up of what we discussed at the C API summit at EuroPython… ## [Inside CPython's attribute lookup](https://antocuni.eu/2025/08/25/inside-cpythons-attribute-lookup/) _2025-08-25 · Antonio Cuni's blog_ Inside CPython's attribute lookup Python's attribute lookup logic seems pretty simple at a first glance: 'firstlook in the instance \_\_dict\_\_ , then look in its type'. However, the actual logic is much more complex because it needs to take intoaccount the descriptor protocol, the difference between lookups on instancesvs types, and what happens in presence of metaclasses. Recently I implemented… ## [Slides for my EuroPython 2025 talks](https://antocuni.eu/2025/07/21/slides-for-my-europython-2025-talks/) _2025-07-21 · Antonio Cuni's blog_ EuroPython 2025 slides Here are the slides for the three speeches which I gave at EuroPython 2025 : ## [Claude code modified my .bashrc without asking?](https://antocuni.eu/2025/07/07/claude-code-modified-my-bashrc-without-asking/) _2025-07-07 · Antonio Cuni's blog_ Claude code modified my .bashrc without asking? !!! note 'Note' This is not the classical post about running claude in YOLO mode and then complaining that it damaged the system. I have reasons to think that claude automatically modified my .bashrc to remove a line alias claude=... without asking my permission and without notifying me of the change. ## [The Arc of a Career](https://mortimus.substack.com/p/the-arc-of-a-career) _2025-06-14 · Rohan Uddin · Mortimus_ The High Flying Life of Joshua Cooper Ramo ## [Ship software peacefully (Sponsored)](https://crawlproof.com/a/rw284cBCckA5) _2025-06-14 · **Sponsored**_ Deploy apps from your repo with auto-config, instant previews, scaling, and monitoring. ## [SPy @ PyCon IT 2025](https://antocuni.eu/2025/05/31/spy--pycon-it-2025/) _2025-05-31 · Antonio Cuni's blog_ SPy @ PyCon IT 2025 Yesterday I talked about SPy at PyCon Italy . Thanks to Hugo van Kemenade for the picture. Slides are available here . The edited video is not available yet, but in the meantime it's possible towatch unedited version available inside the live stream at minute 05:44:05. ## [Tales with claude code: how to make it behave?](https://antocuni.eu/2025/03/16/tales-with-claude-code-how-to-make-it-behave/) _2025-03-16 · Antonio Cuni's blog_ Tales with claude code: how to make it behave? In the past weeks, I have been experimenting with using claude code to speedup development, in particular of SPy . My experience so far reveals a clear pattern: claude excels at simple,one-shot tasks that follow existing patterns, producing commit-readycode. However, for complex tasks requiring multiple iterations, qualitydeteriorates significantly… ## [Over the clouds: CPython, Pyodide and SPy](https://antocuni.eu/2025/02/26/over-the-clouds-cpython-pyodide-and-spy/) _2025-02-26 · Antonio Cuni's blog_ Over the clouds: CPython, Pyodide and SPy The Python community is awesome. It is full of great people and minds, and interacting with people atconferences is always nice and stimulating. But one of my favorite things isthat over time, after many conferences, talks, pull requests and beers, thepersonal relationship with some of them strengthen and they become friends. I am fortunate enough that two… ## [Lessons from Media Players](https://mortimus.substack.com/p/lessons-from-media-players) _2024-11-25 · Rohan Uddin · Mortimus_ A few notes from our recent readings in Issue #6 of our ongoing review series. ## [The Green Frogs of Roy Cohn](https://mortimus.substack.com/p/the-green-frogs-of-roy-cohn) _2024-10-18 · Rohan Uddin · Mortimus_ Dualities, Paradoxes and Ruthlessness in Issue #5 of our ongoing review series. ## [The SV Canon, AI agent interfaces, ontology, and more](https://mortimus.substack.com/p/the-sv-canon-ai-agent-interfaces) _2024-09-30 · Rohan Uddin · Mortimus_ We go a little AI-heavy in Issue #4 of our ongoing review series. ## [Nat Gas Tycoons, AI Priests that bribe, corporate anthropology, and more](https://mortimus.substack.com/p/nat-gas-tycoons-ai-priests-that-bribe) _2024-09-23 · Rohan Uddin · Mortimus_ Issue #3 in an ongoing review series. ## [Perspectives of the Porn King, Leaps of Imagination, Distribution and Sourcing Alpha](https://mortimus.substack.com/p/perspectives-of-the-porn-king-leaps) _2024-09-16 · Rohan Uddin · Mortimus_ Issue #2 in an ongoing review series. ## [End of Summer, Assorted Readings, and more](https://mortimus.substack.com/p/end-of-summer-assorted-readings-and) _2024-09-09 · Rohan Uddin · Mortimus_ The start of an ongoing review series.