Sorry for not writing anything here until now.

https://github.com/karlwettin/wle-2020-naturvardsregistret-bot

I ended up implementing this as in Java rather than Python due to my limited knowledge of GIS tools in Python.

It will:

• Create missing items in Wikidata.
• Update features of items that are out of sync compared to local data.
• Add map polygons to Commons it links to from Wikidata.

Spending a little bit more time on this will allow for automatically download shapefile data from Naturvårdsregistret rather than processing static geojson. The bot could then run as often we want to keep Wikidata and Commons up to date.

It can do dry runs and work against sandboxes for testing.

Before executing this bot in the real world, we should have a 10-30 minute talk where I explain what it does so we all agree it's doing the right things. The minutes from that talk would be the base for documentation of this bot.