Raspberry Pi Buzzer Alert

buzzer.py

import time, sys
from RPi import GPIO

PIN = 18

#0.001 ish is good
BUZZER_DELAY = float(sys.argv[1])
REPEAT = int(sys.argv[2])

try:
        EXTRA = sys.argv[3]
except IndexError:
        EXTRA = 0

BUZZER_REPETITIONS = int((200 / BUZZER_DELAY)/(1000+int(EXTRA)))
print("Playing "+str(REPEAT)+" times at "+str(BUZZER_REPETITIONS)+" repetitions and a "+str(BUZZER_DELAY)+" second delay")

PAUSE_TIME = 0.3

GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(PIN, GPIO.OUT)

for i in range(REPEAT):
    for _ in xrange(BUZZER_REPETITIONS):
        for value in [True, False]:
            GPIO.output(PIN, value)
            time.sleep(BUZZER_DELAY)
    time.sleep(PAUSE_TIME)