''' The task is broken down into three sections. Section 1 - User Input Section 2 - loop through the grocery list Section 3 - provide output to the console '''

#Task: Create the empty data structure grocery_item = {} #defines empty dictionary grocery_history =[] #defines empty list

#Variable used to check if the while loop condition is met stop = 'go' while stop != 'q': #Creating a while loop as long as stop does not equal q

#Accept input of the name of the grocery item purchased. name = input("Item name: ") #Accept item name #Accept input of the quantity of the grocery item purchased. quantity = int(input("Quantity purchased: ")) #Accept quantity purchased #Accept input of the cost of the grocery item input (this is a per-item cost). cost = input("Price per item: ") cost = input("Price per item: ") #Accept price per item #Using the update function to create a dictionary entry which contains the name, number and price entered by the user. #grocery_item = {'name': item_name, 'number': int(quantity), 'price': float(cost)} grocery_item = {'item_name': name, 'quantity': int(quantity), 'cost': float(cost)} #Control Structure - Create a loop #Loop will end when user enters 'q' #Create dictionary entry in loop containing name, number and price entered by user. Variable named grocery_item. #Add the grocery_item to the grocery_history list using the append function #grocery_history.append(grocery_item) grocery_history.append(grocery_item.copy()) #Accept input from the user asking if they have finished entering grocery items. stop = input("Would you like to enter another item? Type 'c' for continue or 'q' to quit :")

# Define variable to hold grand total called 'grand_total' grand_total = 0

#Define a 'for' loop. for item in grocery_history: #Calculate the total cost for the grocery_item. item_total = item['quantity'] * item['cost'] #Add the item_total to the grand_total grand_total += item_total # += is a compound operator #Output the information for the grocery item to match this example: #2 apple @ $1.49 ea $2.98 print("%d %s @ $%.2f ea $%.2f" %(item['quantity'], item['item_name'], item['cost'], item_total))

# Set the item_total equal to 0 item_total = 0

#Print the grand total print("Grand Total: $%.2f" %grand_total)

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Test Your Code

Single Item, Check Input:

milk 1 2.99 q 

Single Grocery Item Check

Check It!SHOW DIFF

LAST RUN on 1/31/2020, 9:49:46 AM

Check 1 failed

Output:

Item name: Quantity purchased: Price per item: Item name: Quantity purchased: Traceback (most recent call last): File "grocery_list.py", line 21, in quantity = int(input("Quantity purchased: ")) #Accept quantity purchased EOFError: EOF when reading a line

Expected:

Item name: Quantity purchased: Price per item: Would you like to enter another item? Type 'c' for continue or 'q' to quit: 1 milk @ $2.99 ea $2.99 Grand total: $2.99

Multiple Item Check Input:

milk 1 2.99 c eggs 2 3.99 c onions 4 0.79 q 

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Multiple Grocery Check

Check It!SHOW DIFF

LAST RUN on 1/31/2020, 9:15:58 AM

Check 1 failed

Output:

Item name:

Quantity purchased: Price per item: Item name: Quantity purchased: Price per item: Item name: Quantity purchased: Price per item: Item name: Quantity purchased: Price per item: Item name: Traceback (most recent call last): File "grocery_list.py", line 19, in item_name = input('Item name: ') #Accept item name EOFError: EOF when reading a line

Expected:

Item name: Quantity purchased: Price per item: Would you like to enter another item? Type 'c' for continue or 'q' to quit: Item name: Quantity purchased: Price per item: Would you like to enter another item? Type 'c' for continue or 'q' to quit: Item name: Quantity purchased: Price per item: Would you like to enter another item? Type 'c' for continue or 'q' to quit: 1 milk @ $2.99 ea $2.99 2 eggs @ $3.99 ea $7.98 4 onions @ $0.79 ea $3.16 Grand total: $14.13