old_contents: from ..migrator import upgrade_step
  
  
  @upgrade_step('platfrom', '', '2')
  def dataset_0_2(value, system):
      # http://redmine.encodedcc.org/issues/817
      value['dbxref'] = []
     
      if 'encode2_dbxrefs' in value:
          for encode2_dbxref in value['encode2_dbxrefs']:
              new_dbxref = 'ucsc_encode_db:' + encode2_dbxref
              value['dbxref'].append(new_dbxref)
          del value['encode2_dbxrefs']
      
      if 'geo_dbxrefs' in value:
          for geo_dbxref in value['geo_dbxrefs']:
              new_dbxref = 'geo_db:' + geo_dbxref
              value['dbxref'].append(new_dbxref)
          del value['geo_dbxrefs']
new_contents: from ..migrator import upgrade_step
  
  
  @upgrade_step('platform', '', '2')
  def dataset_0_2(value, system):
      # http://redmine.encodedcc.org/issues/817
      value['dbxref'] = []
     
      if 'encode2_dbxrefs' in value:
          for encode2_dbxref in value['encode2_dbxrefs']:
              new_dbxref = 'ucsc_encode_db:' + encode2_dbxref
              value['dbxref'].append(new_dbxref)
          del value['encode2_dbxrefs']
      
      if 'geo_dbxrefs' in value:
          for geo_dbxref in value['geo_dbxrefs']:
              new_dbxref = 'geo_db:' + geo_dbxref
              value['dbxref'].append(new_dbxref)
          del value['geo_dbxrefs']
subject: Fix upgrade step name.