PROBLEM 3: Oops, I forgot!Function Name: shoppingList()Parameters:items a list containing items you forgot● quantity - a dictionary of items and quantitiesReturn Value: strDescription: Oops! You've been shopping for so long, you forgot how much you need of certainitems! Given a list of items you forgot, and a dictionary containing how much you need of eachitem, print out how many items you still need to buy.Test Cases:>>> print (shoppingList(['banana', 'apple'], {'apple': 5,'banana': 7, 'avocado': 0}))I still need to buy 12 more items!>>> print (shoppingList ( ['marshmallow', 'apple', 'mandarin'],{'apple': 5, 'banana': 7, 'avocado': 0, 'mandarin': 9,'marshmallow': 1}))I still need to buy 15 more items!

Terms to be noted:Items: A list of items that you need to buy.Quantity: A dictionary that maps items…

Answered: PROBLEM 3: Oops, I forgot! Function…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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PROBLEM 3: Oops, I forgot!
Function Name: shoppingList()
Parameters:
items a list containing items you forgot
● quantity - a dictionary of items and quantities
Return Value: str
Description: Oops! You've been shopping for so long, you forgot how much you need of certain
items! Given a list of items you forgot, and a dictionary containing how much you need of each
item, print out how many items you still need to buy.
Test Cases:
>>> print (shoppingList(['banana', 'apple'], {'apple': 5,
'banana': 7, 'avocado': 0}))
I still need to buy 12 more items!
>>> print (shoppingList ( ['marshmallow', 'apple', 'mandarin'],
{'apple': 5, 'banana': 7, 'avocado': 0, 'mandarin': 9,
'marshmallow': 1}))
I still need to buy 15 more items!

Expert Solution

Step 1: What is to be solved

Terms to be noted:

Items: A list of items that you need to buy.
Quantity: A dictionary that maps items to quantities.
shoppingList(): A function that takes a list of items and a dictionary of quantities as input and returns a string that prints out how many items you still need to buy.

The shoppingList() function solves the problem of forgetting how many items you need to buy when you're shopping. It takes a list of items you forgot and a dictionary of how much you need of each item as input and returns a string that prints out how many items you still need to buy.

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