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Mastodon @vstinner@mamot.fr

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Followers

817

Account age

9 yrs

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Known for

New long article on PEP 814: Add frozendict built-in type https://vstinner.github.io/pep-814-add-frozendict-builtin-type.html Donghee Na @dongheena and me wrote PEP 814 to add frozendict implemented in C. Fortunately, the PEP discussion went well and the Steering Council accepted the PEP. Here is the long journey of adding the type to Python 3.15: implementation, stdlib changes, optimizations, com

13 views New long article on PEP 814: Add frozendict built-in type https://vstinner.github.io/pep-814-add-frozendict-builtin-type.html Donghee Na @dongheena and me wrote PEP 814 to add frozendict implemented in C. Fortunately, the PEP discussion went well and the Steering Council accepted the PEP. Here is the long journey of adding the type to Python 3.15: implementation, stdlib changes, optimizations, com

I'm writing an article serie on Free Threading internals. The first article explores the problem of tracking objects lifetime using reference counting in an efficient fashion: https://vstinner.github.io/free-threading-reference-counting.html We will see how the Gilectomy project started with atomic operations and then switched to buffered reference counting, and how the nogil project managed to so

10 views I'm writing an article serie on Free Threading internals. The first article explores the problem of tracking objects lifetime using reference counting in an efficient fashion: https://vstinner.github.io/free-threading-reference-counting.html We will see how the Gilectomy project started with atomic operations and then switched to buffered reference counting, and how the nogil project managed to so

I'm writing an article series on Free Threading internals. The second article https://vstinner.github.io/free-threading-deferred-reference-counting.html analyzes immortal objects, deferred reference count, and stack references which reduce reference count contention by optimizing Py_INCREF()/Py_DECREF().

9 views I'm writing an article series on Free Threading internals. The second article https://vstinner.github.io/free-threading-deferred-reference-counting.html analyzes immortal objects, deferred reference count, and stack references which reduce reference count contention by optimizing Py_INCREF()/Py_DECREF().

I'm writing an article series on Free Threading internals. The 3rd article https://vstinner.github.io/free-threading-pymutex.html introduces PyMutex: one byte lock with fast, inlineable lock and unlock functions for the common uncontended case. The design is based on WebKit's WTF::Lock.

8 views I'm writing an article series on Free Threading internals. The 3rd article https://vstinner.github.io/free-threading-pymutex.html introduces PyMutex: one byte lock with fast, inlineable lock and unlock functions for the common uncontended case. The design is based on WebKit's WTF::Lock.

📊 Post engagement

📊 Activity & format

Posting cadence

0.18 / week

A lower-frequency account — each post lands with more weight.

Content mix

Mostly images

Recent: 6 text · 6 image · 0 video.

Follower / following

11×

Follows 77 back. A strong ratio — an audience that follows them, not a follow-for-follow network.

Recent posts

View on Mastodon ↗

🔥 Top post I wrote a new PEP with Donghee Na: "PEP 814: Add frozendict built-in type": https://discuss.python.org/t/104854 A new public immutable type frozendict is added to the builtins module. The insertion order is preserved and a frozendict can be hashed. ★ 49

What Every Python Developer Should Know About the CPython ABI by Nathan Goldbaum: https://labs.quansight.org/blog/python-abi-abi3t ★ 6

New long article on PEP 814: Add frozendict built-in type https://vstinner.github.io/pep-814-add-frozendict-builtin-type.html Donghee Na @dongheena and me wrote PEP 814 to add frozendict implemented in C. Fortunately, the PEP discussion we… ★ 13

I'm writing an article series on Free Threading internals. The 3rd article https://vstinner.github.io/free-threading-pymutex.html introduces PyMutex: one byte lock with fast, inlineable lock and unlock functions for the common uncontended … ★ 8 The Python test suite now pass on Alpine Linux (musl C library): https://discuss.python.org/t/the-python-test-suite-now-pass-on-alpine-linux-musl-c-library/107792 I increased the stack size to 1 MiB and skipped the few tests known to fail … ★ 9

I'm writing an article series on Free Threading internals. The second article https://vstinner.github.io/free-threading-deferred-reference-counting.html analyzes immortal objects, deferred reference count, and stack references which reduce… ★ 9

I'm writing an article serie on Free Threading internals. The first article explores the problem of tracking objects lifetime using reference counting in an efficient fashion: https://vstinner.github.io/free-threading-reference-counting.ht… ★ 10 RE: https://mastodon.social/@hugovk/116205674134112929 Python 3.15a7 is now ready for testing with the new built-in frozendict type! ★ 15

In the Python C API, I dislike APIs modifying immutable objects like _PyBytes_Resize(). I designed a new PyBytesWriter API to replace this function. As usual in Python, it took multiple iterations and one year to design the API and to reac… ★ 2 The future Python 3.15 just got a new os.statx() function thanks to Jeffrey Bosboom! Documentation: https://docs.python.org/dev/library/os.html#os.statx The syscall was added to Linux 4.11 (released in 2017) and glibc 2.28 (2018). For exam… ★ 6

Design an API can take time. This article describes the design of the C API to import and export Python integers. It takes place between August 2023 and December 2024. In total, the discussions got more than 448 messages! https://vstinner.… ★ 3 I wrote "PEP 782: Add PyBytesWriter C API": https://peps.python.org/pep-0782/ Add a new PyBytesWriter C API to create bytes objects. Soft deprecate PyBytes_FromStringAndSize(NULL, size) and _PyBytes_Resize() APIs. Join the discussion at: h… ★ 1

🐘 Community & instance

Home server

mamot.fr

Their home server on the fediverse — the instance a creator picks signals the community they belong to.

✅ Link-verified

Verified link

Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.

On Mastodon since

Apr 2017

An OG fediverse account from Mastodon's early years — a long, established presence.

💡 Facts

🗓️Joined Mastodon in 2017 — 9 years ago.

👁️Averages 11 views per post.

📤Posts about 0.2× per week.

🕵️ Fake follower check

Estimated

52/100

Fair Credibility score

76%

Mixed Real audience

Medium Fake-follower risk

High Data confidence

Est. 76% real, active audience · Medium fake-follower risk.
Low engagement (~1.3% of followers engage each post) — a sign of an inflated or inactive audience.
Verified account.
Established account (9+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Maintain Python upstream (python.org) and downstream (RHEL and Fedora) for Red Hat. Python core developer. he/him

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🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

Ian J. O'Neill 18%

teledyn 𓂀 17%

Zorg 🍉 16%

Yann Büchau :nixos: 13%

Molli Woodtagger 12%

Human Coders 10%

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Known for

📊 Post engagement

📊 Activity & format

Recent posts

🐘 Community & instance

💡 Facts

🕵️ Fake follower check

About

📸 Gallery

🔀 Audience overlap

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