An event loop for asyncio written in Rust
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actually, nothing special about this implementation. just another event loop written in rust for educational purposes and joyin tests it shows seamless migration from uvloop for my scraping framework https://github.com/BitingSnakes/silkwormwith APIs (fastapi) it shows only one advantage: better p99, uvloop is faster about 10-20% in the synthetic runcurrently, i am forking on the win branch to give it windows support that uvloop lacks
HN · launched Mar 21, 2026 · 5 upvotes (top 89%) · 2 views
Niche: scripting and execution runtimes · 56 launches, 4 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 56 launches in scripting and execution runtimes →
Could you build this?
No Writing a custom Python asyncio event loop in Rust requires deep systems programming knowledge of epoll/kqueue, OS syscalls, and Python's complex C-API/PyO3 internals.
What it would actually take: Requires deep CPython C-API internals, PyO3/Maturin bindings, and cross-platform asynchronous I/O syscalls (epoll, kqueue, io_uring via mio/tokio). The developer must safely manage Python GIL interactions, asynchronous task scheduling, exception handling, and socket management to meet or exceed C-based uvloop performance.
Discussion
2 comments analyzed.
Competitors mentioned: uvloop
Concerns raised: Windows support was missing
Competitors
Other products that read as similar to this one : 165 launches clear the similarity bar, closest 8 shown.
Attention rank: #157 of 166 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 138 days after the earliest competitor.
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