PEP 827
TS-like type manipulation in Python
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HN · launched Mar 2, 2026 · 7 upvotes (top 59%) · 1 view
Niche: programming languages and interpreters · 161 launches, 2 in the last 7 days ▼ -75% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
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More like this: all 161 launches in programming languages and interpreters →
Could you build this?
No PEP 827 is a formal Python Enhancement Proposal specifying complex type-level type system modifications requiring deep programming language theory and CPython core typing expertise.
What it would actually take: Formulating and implementing a proposal like PEP 827 requires designing sound type theory (conditional types, mapped types, type arithmetic) that fits Python's typing ecosystem without breaking existing static type checkers (mypy, pyright) or runtime typing libraries. Implementation demands modifications to the CPython `typing` module, typing AST structures, and writing reference static analyzer implementations in Python/Rust. It demands deep domain expertise in static type system design, compiler engineering, and participation in the Python Core typing governance.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one : 736 launches clear the similarity bar, closest 8 shown.
Attention rank: #436 of 737 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 121 days after the earliest competitor.
- tsrs · github · 2026-10-01 · 13 upvotes · similarity 0.59
- ts-rust · github · 2026-10-07 · 1036 upvotes · similarity 0.57
- mcp-tada · github · 2026-09-10 · 23 upvotes · similarity 0.55
- tla-ts · github · 2026-10-26 · 99 upvotes · similarity 0.55
- pi-typesafe · github · 2026-09-16 · 19 upvotes · similarity 0.55
- jev-code · github · 2026-09-17 · 19 upvotes · similarity 0.54
- Guts · hn · 2025-11-18 · 105 upvotes · similarity 0.54
- I made ts-node alternative, ttsc/ttsx, a TypeScript-go toolchain · hn · 2026-07-16 · 6 upvotes · similarity 0.53
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