Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Sketchup's API is exposed in Ruby, so you can indeed import your geometry, do stuff to it (normal Sketchup work), and spit it back to something you can then reimport into python.
I suggest looking at how @David Goldwasser's osm2su which is a lightweight version of the OpenStudio sketchup plugin does it, as well as Euclid (previously called "legacy-openstudio").
