old_contents: 
  from ice.console import Console
  
  class ConsoleBackedObjectAdapter(object):
  
    def __init__(self, emulators):
      self.emulators = emulators
  
    def new(self, backing_store, identifier):
      fullname = identifier
      shortname = backing_store.get(identifier, 'nickname', self.fullname)
      extensions = backing_store.get(identifier, 'extensions', "")
      custom_roms_directory = backing_store.get(identifier, 'roms directory', "")
      prefix = backing_store.get(identifier, 'prefix', "")
      icon = backing_store.get(identifier, 'icon', "")
      images_directory = backing_store.get(identifier, 'images directory', "")
      emulator_identifier = backing_store.get(identifier, 'emulator', "")
  
      icon = os.path.expanduser(icon)
      custom_roms_directory = os.path.expanduser(custom_roms_directory)
      images_directory = os.path.expanduser(images_directory)
  
      emulator = self.emulators.find(emulator_identifier)
  
      return Console(
        fullname,
        shortname,
        extensions,
        custom_roms_directory,
        prefix,
        icon,
        images_directory,
        emulator,
      )
  
    def save_in_store(self, backing_store, identifier, console):
      backing_store.set(identifier, 'nickname', console.shortname)
      backing_store.set(identifier, 'extensions', console.extensions)
      backing_store.set(identifier, 'roms directory', console.custom_roms_directory)
      backing_store.set(identifier, 'prefix', console.prefix)
      backing_store.set(identifier, 'icon', console.icon)
      backing_store.set(identifier, 'images directory', console.images_directory)
      backing_store.set(identifier, 'emulator', console.emulator.name)
  
new_contents: 
  import os
  
  from ice.console import Console
  
  class ConsoleBackedObjectAdapter(object):
  
    def __init__(self, emulators):
      self.emulators = emulators
  
    def new(self, backing_store, identifier):
      fullname = identifier
      shortname = backing_store.get(identifier, 'nickname', fullname)
      extensions = backing_store.get(identifier, 'extensions', "")
      custom_roms_directory = backing_store.get(identifier, 'roms directory', "")
      prefix = backing_store.get(identifier, 'prefix', "")
      icon = backing_store.get(identifier, 'icon', "")
      images_directory = backing_store.get(identifier, 'images directory', "")
      emulator_identifier = backing_store.get(identifier, 'emulator', "")
  
      icon = os.path.expanduser(icon)
      custom_roms_directory = os.path.expanduser(custom_roms_directory)
      images_directory = os.path.expanduser(images_directory)
  
      emulator = self.emulators.find(emulator_identifier)
  
      return Console(
        fullname,
        shortname,
        extensions,
        custom_roms_directory,
        prefix,
        icon,
        images_directory,
        emulator,
      )
  
    def save_in_store(self, backing_store, identifier, console):
      backing_store.set(identifier, 'nickname', console.shortname)
      backing_store.set(identifier, 'extensions', console.extensions)
      backing_store.set(identifier, 'roms directory', console.custom_roms_directory)
      backing_store.set(identifier, 'prefix', console.prefix)
      backing_store.set(identifier, 'icon', console.icon)
      backing_store.set(identifier, 'images directory', console.images_directory)
      backing_store.set(identifier, 'emulator', console.emulator.name)
  
subject: Fix runtime errors introduced in 792e760.