"""Example for switching a light on and off."""
import asyncio
from xknx import XKNX
from xknx.devices import Light

async def main():
    """Connect to KNX/IP bus, switch on light, wait 2 seconds and switch it off again."""
    async with XKNX() as xknx:
        light = Light(xknx,
                      name='TestLight',
                      group_address_switch='1/0/9')
        await light.set_on()
        await asyncio.sleep(2)
        await light.set_off()

asyncio.run(main())