1from __future__ import unicode_literals 2 3from prompt_toolkit.input import DummyInput 4from prompt_toolkit.output import DummyOutput 5 6from .application import Application 7 8__all__ = [ 9 'DummyApplication', 10] 11 12 13class DummyApplication(Application): 14 """ 15 When no :class:`.Application` is running, 16 :func:`.get_app` will run an instance of this :class:`.DummyApplication` instead. 17 """ 18 def __init__(self): 19 super(DummyApplication, self).__init__(output=DummyOutput(), input=DummyInput()) 20 21 def run(self): 22 raise NotImplementedError('A DummyApplication is not supposed to run.') 23 24 def run_async(self): 25 raise NotImplementedError('A DummyApplication is not supposed to run.') 26 27 def run_system_command(self): 28 raise NotImplementedError 29 30 def suspend_to_background(self): 31 raise NotImplementedError 32