Query parameters as a dictionary was an ease of use tradeoff over the rarely utilized flexibility of repeated query parameters.

  https://github.com/gruns/furl/blob/master/furl.py#L142

Werkzeug's MultiDict looks like a good combination for the best of both worlds, ease of use and flexibility. Thanks for the reference.

Repeated query parameters aren't "rarely utilized" -- look at how any sort of checkbox or other multi-select works.

I have to second the MultiDict suggestion -- I was very happy to see Werkzeug had gone that route when I had to throw some Python in front of Solr.