disco.py

import asyncio
import kasa
import random

searchTimeout = 10 # default is 5, but this seems more reliable

async def randomset(bulbs, t):
    for b in bulbs:
        await b.set_hsv(random.randint(10, 360), 100, 100, transition=t)
        await b.update()
    

async def initBulb(ip):
    bulb = kasa.SmartBulb(ip)
    await bulb.update()
    print()
    print(bulb.alias)
    print(ip)
    return bulb

async def main():
    print('Disco time. Searching for Kasa RGB bulbs...')
    print('Ctrl + C to exit at any time')
    
    found_devices = await kasa.Discover.discover(timeout=searchTimeout)
    bulb_devices = []
    for devStr in found_devices: 
        dev = await kasa.Discover.discover_single(devStr)
        if (dev.is_bulb and dev.is_color):
            bulb_devices.append(await initBulb(devStr))
    
    if not bulb_devices:
        print('No Kasa RGB bulb devices found')
    else:
        while True:
            await randomset(bulb_devices, 1_000)
            await asyncio.sleep(1)

loop = asyncio.get_event_loop()
try:
    loop.run_until_complete(main())
except KeyboardInterrupt:
    print("Received exit command, exiting")