python code

menu = {

1: {"name": 'espresso',

"price": 1.99},

2: {"name": 'coffee',

"price": 2.50},

3: {"name": 'cake',

"price": 2.79},

4: {"name": 'soup',

"price": 4.50},

5: {"name": 'sandwich',

"price": 4.99}

}

def calculate_subtotal(order):

""" Calculates the subtotal of an order

[IMPLEMENT ME]

1. Add up the prices of all the items in the order and return the sum

Args:

order: list of dicts that contain an item name and price

Returns:

float = The sum of the prices of the items in the order

"""

print('Calculating bill subtotal...')

### WRITE SOLUTION HERE

subtotal = 0

for item in order:

subtotal += float(item["price"])

return round(subtotal,2)

raise NotImplementedError()

def calculate_tax(subtotal):

""" Calculates the tax of an order

[IMPLEMENT ME]

1. Multiply the subtotal by 15% and return the product rounded to two decimals.

Args:

subtotal: the price to get the tax of

Returns:

float - The tax required of a given subtotal, which is 15% rounded to two decimals.

"""

print('Calculating tax from subtotal...')

### WRITE SOLUTION HERE

tax = float(subtotal) * 0.15

return round(tax,2)

raise NotImplementedError()

def summarize_order(order):

""" Summarizes the order

[IMPLEMENT ME]

1. Calculate the total (subtotal + tax) and store it in a variable named total (rounded to two decimals)

2. Store only the names of all the items in the order in a list called names

3. Return names and total.

Args:

order: list of dicts that contain an item name and price

Returns:

tuple of names and total. The return statement should look like

return names, total

"""

print_order(order)

### WRITE SOLUTION HERE

subtotal = calculate_subtotal(order)

tax = calculate_tax(subtotal)

total = round (float(subtotal + tax), 2)

names = [item["name"] for item in order]

return names, total

raise NotImplementedError()

# This function is provided for you, and will print out the items in an order

def print_order(order):

print('You have ordered ' + str(len(order)) + ' items')

items = []

items = [item["name"] for item in order]

print(items)

return order

# This function is provided for you, and will display the menu

def display_menu():

print("------- Menu -------")

for selection in menu:

print(f"{selection}. {menu[selection]['name'] : <9} | {menu[selection]['price'] : >5}")

print()

# This function is provided for you, and will create an order by prompting the user to select menu items

def take_order():

display_menu()

order = []

count = 1

for i in range(3):

item = input('Select menu item number ' + str(count) + ' (from 1 to 5): ')

count += 1

order.append(menu[int(item)])

return order

'''

Here are some sample function calls to help you test your implementations.

Feel free to change, uncomment, and add these as you wish.

'''

def main():

order = take_order()

print_order(order)

subtotal = calculate_subtotal(order)

print("Subtotal for the order is: " + str(subtotal))

tax = calculate_tax(subtotal)

print(str(tax))

items, subtotal = summarize_order(order)

print(items, " total is " + str(subtotal))

# subtotal = calculate_subtotal(order)

# print("Subtotal for the order is: " + str(subtotal))

# tax = calculate_tax(subtotal)

# print("Tax for the order is: " + str(tax))

# items, subtotal = summarize_order(order)

if __name__ == "__main__":

main()