TextDoc.spill calls inherited Doc.document(getattr(object, 
name), name, mod, object)
Doc.document builds args=(getattr(object, name), name, 
mod, object)
Doc.document calls TextDoc.docother(self, *args)
args[3] maps to maxlen=None in TextDoc.docother.. which 
expects it to be an integer (I think 70 in the other spill 
functions), but it's really just an arbitrary object.. so an 
exception gets thrown.

TextDoc.spill (line 1064) should be changed to call 
self.document(getattr(object, name), name, mod) instead, 
as the object is not appropriate to be used as maxlen.