code: def generate_dc_xml(dc_dict):
      
      # Define the root namespace.
      root_namespace = '{%s}' % DC_NAMESPACES['oai_dc']
      # Set the elements namespace URL.
      elements_namespace = '{%s}' % DC_NAMESPACES['dc']
      schema_location = ('http://www.openarchives.org/OAI/2.0/oai_dc/ '
                         'http://www.openarchives.org/OAI/2.0/oai_dc.xsd')
      root_attributes = {
          '{%s}schemaLocation' % XSI: schema_location,
      }
      # Return the DC XML string.
      return pydict2xmlstring(
          dc_dict,
          ordering=DC_ORDER,
          root_label='dc',
          root_namespace=root_namespace,
          elements_namespace=elements_namespace,
          namespace_map=DC_NAMESPACES,
          root_attributes=root_attributes,
      )
docs: Generate a DC XML string.