class RelayController(relay): "store state and change state of relay sistem" def __init__(self): self.list = [0 for x in xrange(8)] self.board = relay def change(input): list = "" for i in range(8): list += self.list[n] n = n-1 number = int('list', 2) execute = "k8055 -p:%d -a1:0 -a2:0 -d:%d" % ('self.board','number') os.system(execute)