Services 2

from twisted.application import service

class FooService(service.Service):
    def startService(self):
        self.foo = createFoo()
    def stopService(self):
        self.foo.shutdown()
        del self.foo
    def foobrizate(self):
        # business logic!

parentSvc = service.MultiService()
svc = FooService()
svc.setServiceParent(parentSvc)