old_contents: from enum import Enum
  from graphene.commands.command import Command
  from graphene.utils import PrettyPrinter
  
  class ShowCommand(Command):
      class ShowType(Enum):
          TYPES = 1
          RELATIONS = 2
  
      def __init__(self, show_type):
          self.show_type = show_type
  
      def execute(self, storage_manager):
          if self.show_type == ShowCommand.ShowType.TYPES:
              i = 1
              type_list = []
              while True:
                  cur_type = storage_manager.type_manager.get_item_at_index(i)
                  if cur_type is None:
                      break
                  type_name = storage_manager.type_name_manager \
                              .read_name_at_index(cur_type.nameId)
                  type_list.append(type_name)
                  i += 1
              if len(type_list) == 0:
                  print "No types found."
                  return
              PrettyPrinter.print_list(type_list, "Type Name")
  
new_contents: from enum import Enum
  from graphene.commands.command import Command
  from graphene.utils import PrettyPrinter
  from graphene.storage import GeneralStore
  
  class ShowCommand(Command):
      class ShowType(Enum):
          TYPES = 1
          RELATIONS = 2
  
      def __init__(self, show_type):
          self.show_type = show_type
  
      def execute(self, storage_manager):
          if self.show_type == ShowCommand.ShowType.TYPES:
              i = 1
              type_list = []
              while True:
                  cur_type = storage_manager.type_manager.get_item_at_index(i)
                  if cur_type is GeneralStore.EOF:
                      break
                  if cur_type is not None:
                      type_name = storage_manager.type_name_manager \
                                  .read_name_at_index(cur_type.nameId)
                      type_list.append(type_name)
                  i += 1
              if len(type_list) == 0:
                  print "No types found."
                  return
              PrettyPrinter.print_list(type_list, "Type Name")
  
subject: Fix SHOW TYPES