Hi Mitch @Helvetosaur
yes, as Anders mentions, the Grasshopper SDK just does not see IEnumerables as nested lists. It has its own paradigm of nested lists, which is called DataTrees. Other nested lists are ignored (as you can see).
In WIP, there is the
import ghpythonlib.treehelpers as th group of functions that should make your life easier. Please note, that the “base” of the datatree is very annoying in nested lists, so one usually wants to remove it and deal with it separately.
for Robert McNeel & Associates