写一段完整的Python联合SUMO的实现交叉口感应控制的代码

代码如下：
import sumo
import tracisumoBinary = sumo.checkBinary('sumo')sumoProcess = sumo.start([sumoBinary, "-c", "crossing.sumocfg"])traci.init(port=8813)step = 0
while step < 1000:
traci.simulationStep()
if traci.inductionloop.getLastStepVehicleNumber("0") > 0:
traci.trafficlight.setPhase("0", (step % 2))
step += 1traci.close()
sumo.stop()