python pwm

import re
from RPIO import PWM

servo = PWM.Servo()


gpiored = 26
gpiogreen = 13
gpioblue = 21


def tryAgain(retries=0):
        try:

                while True:



                        with open ("/var/www/status/led", "r") as myfile:
                                line=myfile.read().replace('\n', '')
                        matchObj = re.match('(.*),(.*),(.*)$', line, re.M|re.I)

                        rered = int(matchObj.group(1))
                        regreen = int(matchObj.group(2))
                        reblue = int(matchObj.group(3))

                        if rered == 0:
                                rered = 1
                        if regreen == 0:
                                regreen = 1
                        if reblue == 0:
                                reblue = 1



                        calcred = int('78')*rered
                        calcgreen = int('78')*regreen
                        calcblue = int('78')*reblue

                        red = round(calcred, -1)
                        green = round(calcgreen, -1)
                        blue = round(calcblue, -1)



                        servo.set_servo(gpiored, red)
                        servo.set_servo(gpiogreen, green)
                        servo.set_servo(gpioblue, blue)


        except:
                retries+=1
                tryAgain(retries)
tryAgain()