HTC Vive Controller not working

[Jeff]

Are there any controllers returned by the steamvr.getControllerList() command? Does the following print 'connected' for each controller?

import viz
import steamvr

viz.go()

hmd = steamvr.HMD()
if not hmd.getSensor():
	sys.exit('SteamVR HMD not detected')
	
for controller in steamvr.getControllerList():
	print 'connected'