GUI Problem: script.py

#!/usr/bin/python

import random
import string
import time

char_set = string.ascii_uppercase + string.digits

class Script(object):
    def __init__(self):
        self.stop = False

    def suspend(self):
        print 'Suspending execution...'
        self.stop = True

    def run(self):
        count = 0
        for i in xrange(600):
            num = random.randrange(10)
            times = 1
            if num % 3 == 0:
                times = 5
            for i in xrange(times):
                print count, ''.join(random.sample(char_set*6, 6))
            if not num % 5:
                time.sleep(1)
            count += 1
            if self.stop:
                break

if __name__ == '__main__':
    s = Script()
    s.run()