old_contents: '''
  Created on 02/02/2014
  
  @author: Miguel Otero
  '''
  
  
  class Dataset(object):
      '''
      classdocs
      '''
  
      def __init__(self, dataset_id=None, name=None, frequency=None,
                   license_type=None, source=None):
          '''
          Constructor
          '''
          self.dataset_id = dataset_id
          self.name = name
          self.frequency = frequency
          self.license_type = license_type
          self.source = source
          self.slices = []
          self.observations = []
          self.indicators = []
  
      def add_slice(self, data_slice):
          self.slices.append(data_slice)
          data_slice.dataset = self
  
      def add_observation(self, observation):
          self.observations.append(observation)
          observation.dataset = self
  
      def add_indicator(self, indicator):
          self.indicators.append(indicator)
          indicator.dataset = self
new_contents: '''
  Created on 02/02/2014
  
  @author: Miguel Otero
  '''
  
  
  class Dataset(object):
      '''
      classdocs
      '''
  
      def __init__(self, dataset_id=None, frequency=None,
                   license_type=None, source=None):
          '''
          Constructor
          '''
          self.dataset_id = dataset_id
          self.frequency = frequency
          self.license_type = license_type
          self.source = source
          self.slices = []
          self.observations = []
          self.indicators = []
  
      def add_slice(self, data_slice):
          self.slices.append(data_slice)
          data_slice.dataset = self
  
      def add_observation(self, observation):
          self.observations.append(observation)
          observation.dataset = self
  
      def add_indicator(self, indicator):
          self.indicators.append(indicator)
          indicator.dataset = self
subject: Remove name att from dataset