Python has had async for 10 years -- why isn't it more popular?
Python has had async for 10 years -- why isn't it more popular? The Python Documentary dropped this morning. In the middle of the documentary, there’s a dramatic segment about how the transition from Python 2 to 3 divided the community (spoiler alert: it didn’t in the end). The early versions of Python 3 (3.0-3.4) were mostly focused on stability and offering pathways for users moving from 2.7. Al
Litestar is worth a look
A few years ago at work, I had a project which offered an opportunity to look at the new generation of async-first, type-hint-driven Python web frameworks. For reasons which aren’t particularly relevant today, on that project I ended up choosing Litestar, which is the one that doesn’t have a ravenous all-consuming hype machine surrounding it. And I’m very glad I did, because today I’m more convinc
Following up on the Python JIT
Performance of Python programs has been a major focus of development for the language over the last five years or so; the Faster CPython project has been a big part of that effort. One of its subprojects is to add an experimental just-in-time (JIT) compiler to the language; at last year's PyCon US, project member Brandt Bucher gave an introduction to the copy-and-patch JIT compiler. At PyCon US 20
Reflections on 2 years of CPython’s JIT Compiler: The good, the bad, the ugly
Reflections on 2 years of CPython’s JIT Compiler: The good, the bad, the ugly 5 July 2025 This blog post includes my honest opinions on the CPython JIT. What I think we did well, what I think we could have done better. I’ll also do some brief qualititative analysis. I’ve been working on CPython’s JIT compiler since before the very start. I don’t know how long that is at this point … 2.5, maybe alm
Pythonのスタブライブラリを生成して、型ヒントのないライブラリも快適で堅牢に利用する - エムスリーテックブログ
AI・機械学習チームブログリレー13日目の記事を三浦 (@mamo3gr) がお送りします。 Pythonで型ヒントを補足するためのサードパーティのスタブライブラリにコントリビュートしました。 それを通して入門したスタブファイルの作り方を紹介します。 便利なPythonの型ヒント 型ヒントを補助するスタブライブラリ スタブファイルの作り方入門 stubgenで下地をつくる pathlib,importlib,inspectを組み合わせたモジュール・クラスの列挙と書き換え __init__ とフィールドの追加 その他、便利そうなツール 実際どれくらい便利になるか Before After まとめ We are hiring !! エンジニア採用ページはこちら カジュアル面談もお気軽にどうぞ インターンも常時募集しています 便利なPythonの型ヒント Pythonで型ヒント、付けてますよね？
Fun with uv and PEP 723
Fun with uv and PEP 723 June 24, 2025 For the longest time, I have been frustrated with Python because I couldn’t use it for one-off scripts. I had to first ensure it was running in an environment where it could find the right Python version and the dependencies installed. That is now a thing of the past. uv¶ If you are not a Pythonista (or one possibly living under a rock), uv is an extremely fas
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 order of magnitude. The basic idea is to just allocate an instance in a tight loop: class A(object): pass def run(loops): # preliminary idea, see below for i in range(loops): a = A() a.i = i The RPython
The fastest way to detect a vowel in a string
Austin Z. Henley Associate Teaching Professor Carnegie Mellon University The fastest way to detect a vowel in a string 6/13/2025 See the discussion of this post on Hacker News, Lobste.rs, and Reddit. I was nerd-sniped recently: What is the best way to detect if a string has a vowel in it? This is trivial, right? But as I started getting into it, I realized there is much more to this. I challenged
GitHub - livingbio/typed-ffmpeg: Python FFmpeg wrappers support filters with typing and docs
Zero Dependencies: Built purely with the Python standard library, ensuring maximum compatibility and security. User-Friendly: Simplifies the construction of filter graphs with an intuitive Pythonic interface. Comprehensive FFmpeg Filter Support: Out-of-the-box support for most FFmpeg filters, with IDE auto-completion. Integrated Documentation: In-line docstrings provide immediate reference for fil
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Starting with pytest’s parametrize
A puzzling Python program
Hypothesis
candyfloss
From Async/Await to Virtual Threads
GitHub - pomponchik/transfunctions: Say NO to Python fragmentation on sync and async
fstrings.wtf - Python F-String Quiz
GitHub - asottile/dict-unpacking-at-home: can we have dict unpacking in python?
330× faster: Four different ways to speed up your code
Pyrefly vs. ty: Comparing Python’s Two New Rust-Based Type Checkers
DumPy: NumPy except it’s OK if you’re dum
