event dispacth and listen woes

[flux]

H i

I have the following files in an app

Main.py_________________________________________________________________________________

import kivy
kivy.require('1.9.0') # Kivy ver where the code has been tested!
from kivy.app import App
from kivy.uix.widget import Widget

class MyW(Widget):
    def build(self):
        pass
class e3App(App):
    def build(self):
        return MyW()


if __name__ == '__main__':
    e3App().run()

e3.kv____________________________________________________________________________________

#:import PlayListView customwidgets.playlistview
#:import SPlayView customwidgets.splayview

<MyW>:


    SPlayView:
        Button:
            on_touch_down:self.parent.buttonPressed()

    PlayListView:

splayview.py______________________________________________________________________

from kivy.uix.boxlayout import BoxLayout

class SPlayView(BoxLayout):

    def __init__(self,**kwargs):
        super(SPlayView,self).__init__()

        self.register_event_type('on_john')

    def buttonPressed(self):
        self.dispatch('on_john')

    def on_john(self):
        print 'event dispatched'  

playlistview.py____________________________________________________________________


from kivy.uix.boxlayout import BoxLayout

class PlayListView(BoxLayout):

    def __init__(self,**kwargs):
        super(PlayListView,self).__init__(**kwargs)
        self.bind(on_john=self.on_john)

    def on_john(self):
        print 'hell'

When I press the button the event looks as if it is being dispatched, but it never arrives... What am I doing wrong, do i have to some way force the event to bubble or not get consumed, if so how.

Thanks in advance

Flux