I was trying to use the files GEOFLAî Départements to draw a map and my first try left the map empty. I then discovered that the coordinates were expressed with Lambert 93 projection. A couple of searches later, I found a couple of versions of the same function in Javascript, PHP or Python. Here is the one I finally chose and modified: lambert93_to_WGPS. After conversion, the file can be used more easliy with module basemap.
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