Quantitative Finance Attribution Analysis (QuantFAA) is a Python library designed to help portfolio managers, quant researchers, and risk analysts explain performance vs. benchmarks using Brinson, ...

上周二凌晨 2 点，盯着一份性能分析报告，胃在打结。我们的 Flask API 被500 个并发呛住了——不是 5 万，五百。 问题不在业务代码。锅在 Python。 大会上没人愿意承认，博客里也没人写“也许我们走错了路”。可只要你混久了，就能感觉到：裂缝在扩大。

A small extension that exposes fast, concurrent downloads (and uploads) to Python using a Rust implementation optimized for I/O-bound workloads.