old_contents: # This program models a player's inventory from a fantasy game
  #
  # You are creating a fantasy video game. The data structure to model the player’s
  # inventory will be a dictionary where the keys are string values describing the item
  # in the inventory and the value is an integer value detailing how many of that item
  # the player has.
  #
  # For example, the dictionary value
  # {'rope': 1, 'torch': 6, 'gold coin': 42, 'dagger': 1, 'arrow': 12}
  # means the player has 1 rope, 6 torches, 42 gold coins, and so on.
  #
  # Write a function named displayInventory() that would take any possible “inventory”
  # and display it like the following:
  # Inventory:
  # 12 arrow
  # 42 gold coin
  # 1 rope
  # 6 torch
  # 1 dagger
  #
  # Total number of items: 62
  stuff = {'rope': 1, 'torch': 6, 'gold coin': 42, 'dagger': 1, 'arrow': 12}
  
  
  def displayInventory(inventory):
      print("Inventory:")
      item_total = 0
      for k, v in inventory.items():
          item_total += v
          print(str(v) + " " + k)
      print("Total number of items: " + str(item_total))
  
  
  displayInventory(stuff)
  
new_contents: """Fantasy game inventory
  
  This program models a player's inventory from a fantasy game.
  
  You are creating a fantasy video game. The data structure to model the player’s
  inventory will be a :obj:`dictionary <dict>` where the keys are :obj:`string <str>`
  values describing the item in the inventory and the value is an :obj:`integer <int>`
  value detailing how many of that item the player has.
  
  For example, the dictionary value::
  
      {'rope': 1, 'torch': 6, 'gold coin': 42, 'dagger': 1, 'arrow': 12}
  
  means the player has 1 rope, 6 torches, 42 gold coins, and so on.
  
  Write a function named :meth:`displayInventory` that would take any possible “inventory”
  and display it like the following::
  
      Inventory:
      12 arrow
      42 gold coin
      1 rope
      6 torch
      1 dagger
  
      Total number of items: 62
  
  Attributes:
      stuff (dict): Dictionary with item names as keys and their counts as values.
  """
  stuff = {'rope': 1, 'torch': 6, 'gold coin': 42, 'dagger': 1, 'arrow': 12}
  
  
  def displayInventory(inventory: dict) -> None:
      """Display inventory
  
      Displays each key in a given inventory dictionary.
  
      Args:
          inventory: Inventory dictionary to display.
  
      Returns:
          None. Prints out inventory.
  
      """
      print("Inventory:")
      item_total = 0
      for k, v in inventory.items():
          item_total += v
          print(str(v) + " " + k)
      print("Total number of items: " + str(item_total))
  
  
  def main():
      displayInventory(stuff)
  
  
  if __name__ == '__main__':
      main()
  
subject: Update P01_fantasy_game_inventory.py added docstrings and wrapped in main() function