How to make a class destroy itself and call a function from parent? if possible

[sbn]

Hello

I have a script that lets the user select a services from a list. When selected, an instance of a "ServiceHandler" class is created, which does the service interaction.
When the user is done interacting with the service, i should be able to press exit and return to the selection menu.

The first part looks like this

def user_select_service(sevices):
  selection_list=create_list(services)
  appuifw.app.body=selection_list
  appuifw.app.title=u'Select a service'
  
def returnToSelection():
  appuifw.app.body=selection_list
  appuifw.app.title=u'Select a service'

servicelist=get_services()

service=user_select_service(servicelist)
sh=ServiceHandler(service)

This is the handler

class ServiceHandler:
  def __init__(self,service):
    #blablabla
    appuifw.app.exit_key_handler=self.goBack


  def goBack(self):
    DESTROY SELF
    returnToSelection()


  #a list of methods for interaction with the service
  #....
  #...

I'm in doubt how to make my goBack method. I'm unsure of how to refere to methods (and variable) outside the class i'm in. And also, how to destroy the class i'm operating within. What would you do?

[sbn]

I think i'll just do the stuff in the returnToSelection function and then pass it as a parameter to ServiceHandler so it's accessible from within the class.