Option 1: LIST WITH PLACEHOLDERS

Create a List with Placeholders to Define the Order and Data Types Expected

• Remember, each data element in your list has a specific position. That position is its index number. The index number comes from the order they are in the list.

  • However, each data element in the list could actually be a different data type.
    • For example, the information at index 0 could be a string like "chicken" or "beef", or it could be an integer like 2 or 3 to describe the number of ketchup packets at index 3.

• By using strings and variables in the actual list, this option will provide flexibility down the road.

• Set up the list to expect variables, strings, and integers in the list; create an index spot for each menu item to become an element in the list.

  • Create a list using empty strings for each future sandwich, beverage, and fries choice.

    • The empty string tells the program to expect a string to be placed into the list at that index position.

  • At index 3, however, place a 0 to indicate that an integer is expected (number of ketchup packets).

Starter code you might add to as you work looks like this:

order = ["", "", "", 0]
sandwich_index = 0
beverage_index = 1
fries_index = 2
ketchup_index = 3

Using the example code provided, you would need to outline your list and add code to add items at specific index positions. # Iteration 1 Code sandwich_choice = input('What kind of sandwich would you like - enter c for chicken $5.25, b for beef$6.25, t for tofu 5.75 ') #print('Sandwich:', sandwich_choice) if sandwich_choice == 'c' or sandwich_choice == "C": total_cost += 5.25 print('Sandwich: Chicken 5.25') elif sandwich_choice == 'b': total_cost += 6.25 print('Sandwich: Beef $6.25') else: total_cost += 5.75 print('Sandwich: Tofu$5.75')

Iteration 2 Code

beverage = input('Would you like a drink with your sandwich? Enter y or n. ') if beverage == 'y' or beverage == 'Y': beverage_choice = input('What size drink would you like? Enter s for small $1.00, m for medium$1.75, l for large 2.25 ') #print('Drink: ' + beverage_choice) if beverage_choice == 's': total_cost += 1.00 print('Drink: Small 1.00') elif beverage_choice == 'm': total_cost += 1.75 print('Drink: Medium $1.75') else: total_cost += 2.25 print('Drink: Large$2.25') else: print('No Drink')

Iteration 3 Code

fries_with_that = input('Would you like fries with your order? Enter y for Yes or n for No ') if fries_with_that == 'y': fries_choice = input('What size fries would you like? Enter s for small $1.00 m for Medium$1.50 l for Large $2.00 ') if fries_choice == 's': fries_mega = input('Would you like to megasize your fries for$1.00 more? Enter y for Yes or n for No ') if fries_mega == 'y': total_cost += 2 print('Fries: Large $2.00') else: total