I, for one, don't have the time to work on this, especially since I don't regularly use the sqlite3 module.  If this is something you want, submit a PR.  Lack of skill is not a legitimate reason not to do so; the devguide provides instructions on the mechanics of submitting a patch and any questions you have along the way can be asked here, on the core-mentorship mailing list, or on the #python-dev channel on freenode.

It's much easier to justify 2 minutes to answer a question, even if that 2 minutes happens 10 times, than 2 hours to add a feature that I won't use and will be expected to maintain :)