hue.py

import requests
import time

if __name__ == '__main__':
    
    # the base URL
    base_url = 'http://192.168.0.201'
    # if you are using the emulator, probably the base_url will be:
    # base_url = 'http://localhost:8000'
    
    # example username, generated by following https://developers.meethue.com/develop/get-started-2/
    username = 'd4tyEfajszSSnyy8sy0Wi559yv8gdSCo-MwMDE2C'
    # if you are using the emulator, the username is:
    # username = 'newdeveloper'

    # lights URL
    lights_url = base_url + '/api/' + username + '/lights/'
    
    # get the Hue lights (as JSON)
    all_the_lights = requests.get(lights_url).json()

    if type(all_the_lights) is dict:
        # iterate over the Hue lights, turn them on with the color loop effect
        for light in all_the_lights:
            url_to_call = lights_url + light + '/state'
            body = {'on': True, 'effect': 'colorloop'}
            # to set the red color
            # body = '{ "hue" : 0 }'
            # more colors: https://www.developers.meethue.com/documentation/core-concepts
            requests.put(url_to_call, json=body)

        # wait 10 seconds...
        for i in range(0, 10):
            time.sleep(1)
            print(10-i)

        # iterate over the Hue lights and turn them off
        for light in all_the_lights:
            url_to_call = lights_url + light + '/state'
            body = {'on': False}
            requests.put(url_to_call, json=body)
    else:
        print('Error:', all_the_lights[0]['error'])