def process_io(self, iocb):
    'Figure out how to respond to this request.  This must be\n        provided by the derived class.'
    raise NotImplementedError('IOController must implement process_io()')
Figure out how to respond to this request.  This must be
provided by the derived class.
def process_io(self, iocb):
    'Figure out how to respond to this request.  This must be\n        provided by the derived class.'
    raise NotImplementedError('IOController must implement process_io()')