Are you aware of the 'GNU electic' project? It's java and a little under maintained at the moment, but appears as though it can be scripted in Python.

efabless.com uses Electric for schematic capture (with some bean-shell scripting, no Jython yet).

Electric looks appealing on its surface but its layout database uses an "arc" construct that is destroyed on GDS-II export and can't be rebuilt, so connectivity verification will fail on anything streamed back in. I prefer Xschem for schematics, using this for other IC product development work and I see that Stefan has already translated some Sklywater logic cells to an Xschem library.

Thanks