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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 hourly_relative_humidity(self):
 """A data collection containing hourly relative humidity over they day."""

        dpt_data = self._humidity_condition.hourly_dew_point_values(
            self._dry_bulb_condition)
        rh_data = [rel_humid_from_db_dpt(x, y) for x, y in zip(
            self._dry_bulb_condition.hourly_values, dpt_data)]
        return self._get_daily_data_collections(
            fraction.RelativeHumidity(), '%', rh_data)