Silly program to light up LEDs on raspberrypi piface depending on system load

loadled.py

#!/usr/bin/python

#silly program to light up LEDs on raspberrypi piface depending on system load
#basically multiplys load by x10, rounds, and lights up that many leds

from time import sleep
import pifacedigitalio
import sys

DELAY = 1.0  # seconds
MAXLED = 8
MULTIPLIER = 10

if __name__ == "__main__":
	pifacedigital = pifacedigitalio.PiFaceDigital()
	while True:
		file = open('/proc/loadavg', 'r') 
		line = file.readline()
		load = line.split( )
		omin = float(load[0])
		omin = round(omin * MULTIPLIER,0)
		omin = int(omin)

		if omin > MAXLED:
			omin = MAXLED

		for offled in range (omin,MAXLED):
			pifacedigital.leds[offled].turn_off()

		for onled in range(omin):
			pifacedigital.leds[onled].turn_on()

		sleep(DELAY)