Philips Hue - On

hueRamblings.py

import json
import urllib2

def hueOn(address, client, on=True):
	for light in (1, 2, 3):
		url = "http://%s/api/%s/lights/%s/state" % (address, client, light)
		request = urllib2.Request(url, json.dumps({"on": on}))
		request.get_method = lambda: "PUT"
		response = urllib2.urlopen(request)

hueOn("192.168.0.5", "25bebfd9e3d966783278c476011e2321", True)

Here's a working library if you want to explore a bit:
https://github.com/studioimaginaire/phue

Very clean!

Thanks!