I would love contributions, especially for the DB API functions, since there isn't a ton of coverage there. Actually, I've stepped away from HPC for a couple years now and I haven't been adding new features unless someone in the community asks for it. I have just been maintaining the code for newer versions of Slurm. I had been working on rewriting the API to be more Pythonic, using classes and properties, but I haven't been able to get that over the hump. I would still like to get that into the master branch someday. Let me know if you are unable to contribute, then I'll look at adding it in when time permits.
Giovanni