import W def listhit(isdbl): if isdbl: print "double-click in list!" else: print "click in list." window = W.Window((200, 400), "Window with List", minsize = (150, 200)) window.list = W.List((-1, 20, 1, -14), [], listhit) # or (equivalent): # window.list = W.List((-1, 20, 1, -14), callback = listhit) window.list.set(range(13213, 13350)) window.open()