kapynResearch

Profiling web-edit with Python 3.15: flame graphs and source heatmaps

Python 3.15’s new profiler is benchmarked on a web‑editing app, producing flame graphs and source heatmaps. The demo shows how GPT‑6 Astra Extra High in Codex can request and generate profiling visualizations, illustrating performance hotspots in real‑world code. This helps developers understand and optimize Python 3.15 applications.

Simon Willison·Oct 12, 2026

Opening Kapyn…