@katafrakt I remember putting a lot of effort in some of mine, like
https://github.com/molybdenum-99/infoboxer. Not sure about "excellent", but I was happy with the results at the moment of doing it.

GitHub - molybdenum-99/infoboxer: Wikipedia information extraction library
Wikipedia information extraction library. Contribute to molybdenum-99/infoboxer development by creating an account on GitHub.
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