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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def set_sampling_strategies(self, filter, strategy_and_params):
 """Set a sampling strategy for all sensors that match the specified filter. Parameters filter : string The regular expression filter to use to select the sensors to which to apply the specified strategy. Use "" to match all sensors. Is matched using :meth:`list_sensors`. strategy_and_params : seq of str or str names and parameters are as defined by the KATCP spec. As str contains the same elements in space-separated form. **list_sensor_args : keyword arguments Passed to the :meth:`list_sensors` call as kwargs Returns ------- sensors_strategies : tornado Future resolves with a dict with the Python identifier names of the sensors as keys and the value a tuple: (success, info) with sucess : bool True if setting succeeded for this sensor, else False info : tuple normalised sensor strategy and parameters as tuple if success == True else, sys.exc_info() tuple for the error that occured. """

        sensors_strategies = {}
        sensor_results = yield self.list_sensors(filter)
        for sensor_reslt in sensor_results:
            norm_name = sensor_reslt.object.normalised_name
            try:
                sensor_strat = yield self.set_sampling_strategy(norm_name, strategy_and_params)
                sensors_strategies[norm_name] = sensor_strat[norm_name]
            except Exception:
                sensors_strategies[norm_name] = (
                    False, sys.exc_info())
        raise tornado.gen.Return(sensors_strategies)