I looked at Go a little bit as maybe a place to write a kind of "uber-Core" system, e.g. a high performance database abstraction layer that could power libs in other languages. But apparently Go is not at all designed to be embedded in other runtimes, it isn't even possible. Also it seems to lack a standard database API and the connectors that were there seemed a little all over the place.

Did you check out rust? That's within rust's feature set, though it isn't "production ready" yet.

That would probably make me switch from python to go. Not just because of the lib itself, but because it would help me gain confidence in the modeling and abstraction power of Go.