Question

Use Python program.

1. Make a list called groceries with the following values: "pineapple", "tangerine", and "peach".
2. Define these two dictionaries in your program:

stock = {

    "pineapple": 6,

    "peach": 0,

    "tangerine": 32,

    "pear": 15

}

prices = {

    "pineapple": 4,

    "peach": 2,

    "tangerine": 1.5,

    "pear": 3

}

3. Take one argument “item” as input from the user and returns the cost of that item. Assume the user will only input an item that exists.
4. Change the program now so that it takes two separate inputs from the user, ‘item’ and ‘quantity’, and return the cost of that quantity of items. If there are not enough items available, return an appropriate message indicating the quantity that is available, and what that cost is. If the user asks for an item that doesn’t exist, print a message so indicating, and end the program.
5. Change your program so that it presents the user with a menu of options; ‘enter item and quantity’ and ‘quit’. Cause the program to continue asking for an item and quantity until the user decides to end the program. Apply the same rules as in ‘b’, but each time you return a cost, reduce the amount of available stock by that amount.

Answer 1

CODE:

#instructions
groceries = ['pineapple','tangerie','peach']
stock = {"pineapple": 6,"peach": 0,"tangerine": 32,"pear": 15}
prices = {"pineapple": 4,"peach": 2,"tangerine": 1.5,"pear": 3}
#inifinte loop
while(True):
#printing the menu
print('Enter 1 to enter item and quantity')
print('Enter 2 to quit')
#user entering the choice
choice = int(input())
#if choice == 1
if(choice == 1):
#user enters the item and quantity
item = input('Enter the item: ')
quantity = int(input('Enter the quantity: '))
#if the item is not in the list
if(item not in stock.keys()):
#prints the message
print('Item not in stock!')
else:
#if it is available in the list
#but the quantity entered is greater than
#the quantity available
if(quantity > stock[item]):
#prints the quantity available and price of that qty
print('Quantity entered is greater than available')
print('Quantity available is '+str(stock[item]))
print('Price for that quantity is: $'
+str(stock[item]*prices[item]))
else:
#if user entered a valid quantity
#printing the cost of that quantity
print('Cost of {} {} is: ${}'
.format(str(quantity),item,str(prices[item]*quantity)))
#reducing the amount from the stock
stock[item] -= quantity
elif(choice == 2):
break
else:
print('Invalid Choice!')

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CODE IMAGES:

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OUTPUT:

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Feel free to ask any questions in the comments section

Thank You!