Found on http://nestorprado.tumblr.com/post/30271496202/multiple-uvs-maya
Select one object, then select any number of other objects and this will transfer the UVs from the first to the others.
““import maya.cmds as cm
#grab all the selected objects
selectedObjects = cm.ls(sl=True)
#save first one into variable
#pop first one out of the selected objects list
driver = selectedObjects.pop(0)
#for each object in the selected objects list
for object in selectedObjects:
cm.select([driver,object])
#transfer attributes
cm.transferAttributes(sampleSpace=4,transferUVs=2, transferColors=2 )””