[Twisted-Python] Discovering Twisted : reactor.stop()

27 Sep 2007


      Hello,
I discovered Python recently and even more recently the Twisted module.
I have a problem with the Twisted reactor and I would like to understand for
which reason my program freezes.
Here the code which should loop forever :
from twisted.internet import reactor
from twisted.internet import task
class reactorProb(object):
    def __init__(self):
        self.count = 5
        self._callback = task.LoopingCall(self.Heartbeat)
        self._callback.start(1, now = False)
    def Heartbeat(self):
        print "Top"
        self.count -= 1
        if (self.count == 0):
            print "Exit"
            self._callback.stop()
            del self._callback
            reactor.stop()
while (True):
    rp = reactorProb()
    print "Enter into reactor.run()"
    reactor.run()
    print "Leave from reactor.run()"
I got this:
Enter into reactor.run()
Top
Top
Top
Top
Top
Exit
Leave from reactor.run()
Enter into reactor.run()
Top
Top
Top
Top
Top
Exit
Thus I start first once the reactor, I stop it then I start again and it
freezes instead of stopping it the reactor.
Could somebody explain me it why?
Thank you in advance.
smu

[Twisted-Python] Discovering Twisted : reactor.stop()

Steve MULLER