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

Claude Opus 4.5, and why evaluating new LLMs is increasingly difficult - 24th November 2025
sqlite-utils 4.0a1 has several (minor) backwards incompatible changes - 24th November 2025
Olmo 3 is a fully open LLM - 22nd November 2025

mapping 54 openstreetmap 50 osm 1 python 1206 routing 2

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