# This program demonstrates how to get the
# index of an item in a list and then replace
# that item with a new item.

def main():
    # Create a list with some items.
    food = ['Pizza', 'Burgers', 'Chips']

    # Display the list.
    print('Here are the items in the food list:')
    print(food)

    # Get the item to change.
    item = input('Which item should I change? ')

    try:
        # Get the item's index in the list.
        item_index = food.index(item)

        # Get the value to replace it with.
        new_item = input('Enter the new value: ')

        # Replace the old item with the new item.
        food[item_index] = new_item

        # Display the list.
        print('Here is the revised list:')
        print(food)
    except ValueError:
        print('That item was not found in the list.')

# Call the main function.
main()