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Static Type Checker for Python

68 mentions on Hacker News by 62 people: 5 stories, 63 comments · first 2019-03-24 · latest 2025-12-22

Mentions per year 68 mentions · busiest year 2023 (16)
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  1. Yep it uses the in-progress draft-spec dataclass_transforms https://github.com/microsoft/pyright/blob/main/specs/datacla... As Pyright already supports it, and Pylance is built on Pyright, they can use it directly. Hopefully more editors…
    comment by tiangolo · 2021-08-25 · in SQLModel – SQL Databases in FastAPI
  2. …years. It's really good. The language server Microsoft built for type checking and completion ( https://github.com/microsoft/pyright ) is excellent. It makes Python feel like a first-class statically typed language, which isn't something I…
    comment by bpicolo · 2021-07-05 · in Python Best Practices for a New Project in 2021
  3. The Pyright typechecker for Python (a Mypy alternative): https://github.com/microsoft/pyright
    comment by frou_dh · 2021-04-20 · in A curated list of JavaScript tooling not written in JavaScript
  4. Reminds me of Pyright - a static type checker for Python, written in TypeScript. https://github.com/microsoft/pyright
    comment by pansa2 · 2021-04-20 · in A curated list of JavaScript tooling not written in JavaScript
  5. …logs.microsoft.com/python/pylance-introduces-fiv... [1] https://www.python.org/dev/peps/pep-0646/ [2] https://github.com/microsoft/pyright/releases/tag/1.1.107
    comment by dragonwriter · 2021-02-13 · in Swift for TensorFlow Shuts Down
  6. …notes, a lot of the "secret sauce" in Pylance is part of the open source Pyright typechecker: https://github.com/microsoft/pyright .
    comment by Xavdidtheshadow · 2021-01-10 · in Microsoft Refuses to Open Source VSCode Python Language Server
  7. …extension. I'm just using Pyright instead and don't seem to be missing out on anything important. https://github.com/microsoft/pyright
    comment by kam · 2021-01-10 · in Microsoft Refuses to Open Source VSCode Python Language Server
  8. …way more problems than mypy does. It also catches syntax and semantic errors as a nice aside. [1] https://github.com/microsoft/pyright
    comment by tcbasche · 2020-12-05 · in The Myth of Code Coverage
  9. …by Microsoft [0] https://github.com/facebook/pyre-check [1] https://github.com/google/pytype [2] https://github.com/microsoft/pyright
    comment by ehsankia · 2020-11-12 · in Guido van Rossum joins Microsoft
  10. …Microsoft has a competitor python type checker, pyright [0]. Anyone have experience with it? [0] https://github.com/microsoft/pyright
    comment by davidkell · 2020-11-12 · in Guido van Rossum joins Microsoft
  11. Pylance is built upon the Pyright language server which is open source: https://github.com/microsoft/pyright I'm curious what research/IP has lead to this being a source turducken of open-closed-open, but it's not entirely closed.
    comment by WorldMaker · 2020-08-04 · in The best Parts of Visual Studio Code are proprietary
  12. …nuitka.net/ - python language server: https://github.com/palantir/python-language-server - pyright: https://github.com/microsoft/pyright - pyre: https://pyre-check.org/ - and of course mypy: http://mypy-lang.org/ I don't think any of them…
    comment by BiteCode_dev · 2020-03-21 · in MonkeyType: A system for Python that automatically generates type annotations
  13. …find it helpful. [1] https://github.com/python/mypy [2] https://github.com/facebook/pyre-check [3] https://github.com/microsoft/pyright [4] https://github.com/google/pytype
    comment by meowface · 2019-09-16 · in The boring technology behind a one-person Internet company (2018)