krondoEx3-2

krondoEx3-2

from twisted.internet.task import LoopingCall

counters = [6, 5, 4]
times = [1, 2, 3]

class Countdown(object):
    instances = 0
    
    def __init__(self, countFrom, interval):
        self.counter = countFrom
        self.lc = LoopingCall(self.count)
        Countdown.instances += 1
        self.instanceNum = Countdown.instances
        self.lc.start(interval)

    def count(self):
        if self.counter == 0:
            print 'Stop %s' % self.instanceNum
            self.lc.stop()
            Countdown.instances -= 1
            if Countdown.instances == 0:reactor.stop()
        else:
            print 'instance %s: count %s' % (self.instanceNum, self.counter), '...'
            self.counter -= 1

from twisted.internet import reactor
reactor.callWhenRunning(map, Countdown, counters, times)
print 'Start!'
reactor.run()
print 'Stop!'