Adding goroutines to Python

Short summary

The author built Runloom, a Go-style stackful fiber runtime for free-threaded CPython 3.13t+ that achieves performance on par with Go for network handlers and within 8% for CPU-bound work. Claude wrote the 30k-line C implementation based on the author's architecture design, validated through benchmarking, fuzzing, and deterministic simulation testing. The project demonstrates a rigorous methodology for producing reliable systems software with AI assistance by treating AI output as untrusted and verifying behavior through measurable properties.

• •Runloom brings Go-style work-stealing fibers to Python, matching Go's throughput for network I/O (~638k echo req/s) and coming within 8% for CPU-bound Cython handlers
• •Claude wrote the 30k-line C runtime from the author's architecture spec; reliability was ensured via benchmarks, fuzzing, and deterministic simulation rather than trusting AI output
• •Optional CPython patch enables true cross-hub work-stealing by separating interpreter state from allocator ownership

Generated with AI, which can make mistakes.