code: def _get_default_price_id(items, option, hourly, location):
      
  
      for item in items:
          if utils.lookup(item, 'itemCategory', 'categoryCode') != option:
              continue
  
          for price in item['prices']:
              if all([float(price.get('hourlyRecurringFee', 0)) == 0.0,
                      float(price.get('recurringFee', 0)) == 0.0,
                      _matches_billing(price, hourly),
                      _matches_location(price, location)]):
                  return price['id']
  
      raise SoftLayer.SoftLayerError(
          "Could not find valid price for '%s' option" % option)
docs: Returns a 'free' price id given an option.