Show HN: Runloom – Go-style coroutines for Python free-threaded
Runloom is a new library for Python that introduces Go-style stackful coroutines to enable high-concurrency, blocking-style code execution. By leveraging free-threaded CPython, it allows developers to run millions of fibers across multiple CPU cores without the complexity of async/await syntax.
Why it matters
This represents a significant technical advancement for Python performance, potentially allowing the language to handle high-concurrency tasks more efficiently, similar to Go.
Go-style stackful coroutines for Python. Write blocking code — fiber(fn) , plain recv / send , no async / await — and run a million of them across every core in one process. Hand-rolled asm context switch + C work-stealing scheduler + netpoll, built for free-threaded Python 3.14t (GIL off).
The content is a technical announcement regarding software development tools.
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