Simon Willison’s Weblog

OSM routing, A*, cycle-filtered, python (via) A python library for finding routes using OpenStreetMap data.

Posted 5th July 2008 at 3:13 pm

Recent articles

The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025
Open weight LLMs exhibit inconsistent performance across providers - 15th August 2025
LLM 0.27, the annotated release notes: GPT-5 and improved tool calling - 11th August 2025

mapping 54 openstreetmap 50 osm 1 python 1175 routing 2

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