PEP 827 – TS-like type manipulation in Python
We propose adding powerful type-level introspection and construction facilities to Python’s type system. This design is inspired largely by TypeScript’s conditional and mapped types, but is adapted to the distinct semantics and constraints of Python’s t...
PEP 827 – TS-like type manipulation in Python launched on March 2, 2026 with 7 votes, #1,458 of 23,380 launches that month and more than 75% of that year's launches.
What it does
PEP 827 – Type Manipulation PEP 827 – Type Manipulation Author : Michael J. Sullivan <sully at vercel.com>, Daniel W. Park <daniel.park at vercel.com>, Yury Selivanov <yury at vercel.com> Discussions-To : Discourse thread Status : Draft Type : Standards Track Topic : Typing Created : 27-Feb-2026 Python-Version : 3.16 Post-History : 02-Mar-2026 Table of Contents Abstract Motivation Prisma-style ORMs Automatically deriving FastAPI CRUD models dataclasses-style method generation More powerful decorator typing Specification of Some Prerequisites Unpack of typevars for **kwargs Extended Callables Specification Grammar specification of the extensions to the type language Type booleans Conditional…from peps.python.org
Does a similar job
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- PTPython-Type-Challenges, master Python typing with online exercises2023 · python-type-challenges.zeabur.app · ▲110
Hi HN, I'm excited to share Python-Type-Challenges, a collection of hands-on, interactive challenges designed to help Python developers master type annotations. Whether you're new to type hints or looking to deepen your understanding, these exercises provide a fun and educational way to explore Python's type system. I'd love to get your feedback and contributions! https://github.com/laike9m/Python-Type-Challenges
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Conway's Game of Life in TypeScript's type system2023 · github.com · ▲186TypeScript playground: https://www.typescriptlang.org/play?#code/KYDwDg9gTgLgBDAnmY...
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