Anders Lehmann - How to GIS with Python In this talk I will present some tools for working with Geographic Information Systems in Python. Geographic information Systems are widely used for managing geographic (map) data. As an example I will present how to use Open Street Map data, in routing, traffic planning and estimation of pollution emission. For the purpose of the project EcoSense, GPS data from users smartphones are mapped to OSM roads. The map matching algorithm is written in Python and uses data from the database PostgreSQL, with the PostGIS extension. One of the goals of the EcoSense project is to devise methods to improve the estimation of air quality in urban environments.