Answered: 2 3 You chose to use a dictionary to…

2 3 You chose to use a dictionary to create a tutoring program to help your friend learn Spanish. Which code creates an empty dictionary. O spanish = <> O spanish = 0 O spanish = [] O spanish = 0

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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My code from milestone 1 # Define the quiz_type dictionary quiz_type = { 1: "BabyAnimals", 2: "Brooklyn99", 3: "Disney", 4: "Hogwarts", 5: "MyersBriggs", 6: "SesameStreet", 7: "StarWars", 8: "Vegetables" } # Print the welcome message print("Welcome to the Personality Quiz!") print() print("What type of Personality Quiz do you want to run?") print() for number, quiz_name in quiz_type.items(): print(f"{number} - {quiz_name}") print() test_number = int(input("Choose test number (1-8): ")) # Check if the test_number is valid if test_number in quiz_type: quiz_name = quiz_type[test_number] print() print(f"Great! Let's begin the {quiz_name} Personality Quiz...") else: print("Invalid test number. Please choose a number between 1 and 8.") ------------------------------------------------------------------- Milestone #3 code : # Ending statements with the period to easily split them as mentioned in the question. questions = [ "I…
This section has been set as optional by your instructor. OBJECTIVE: Write a program in Python that prints the middle value of a dictionary's values, using test_dict from the test_data.py module. NOTE: test_dict is created & imported from the module test_data.py into main.py Example 1: test dict = {'a':1,'b':9,'c':2,'d':5} prints 5 Example 2: test_dict = {'b':9,'d':5} prints 5 Hint: You may(or may not) find the following function useful: list.sort() which sorts the elements in a list. Note: the result is automatically stored in the original list, and return value from the function is None Туре list = [1, 2,3,2,1] After calling: list = [1,1,2,2,3] list.sort(), 339336.2266020 x3zgy7 LAB 13.11.1: Middlest Value (Structured Types) АCTIVITY 0/11 File is marked as read only Current file: test_data.py 1 #This module creates the test_dict to be used in main.py 2 #Reads input values from the user & places them into test_dict 3 dict_size = int(input()) #Stores the desired size of test_dict. 4…
Assume the variable definitions references a dictionary. Write an if statement that determines whether the key 'marsupial' exists in the dictionary. If so, delete 'marsupial' and its associated value. If the key is not in the dictionary, display a message indicating so.
▾ Part 1: Sin Tax Syntax [NEW PROBLEM] Complete the function sin_tax, which computes and returns the total cost to purchase several items, some of which might be subject to sin taxes. The function takes three arguments: • items: a list of items to purchase (strings). If an item appears more than once, this means we want to buy it more than once. • prices! a dictionary that maps an item (string) to its price (float) • tax rates: a dictionary that maps an item (string) to its sin tax rate (float). The rate is given as a decimal (e.g., 0.08 to represent 8%). If an item from items does not appear in tax rates, then that item is not subject to a sin tax. Assume that every string in items is a valid key in prices. Example #1: items: ['beer', 'wine', 'cigarettes'] prices: {'beer': 18.95, 'cigarettes': 12, 'wine': 20.0} tax_rates: {'beer': 0.03, 'cigarettes': 0.1, wine': 0.05) Returned: 53.72 Example #2: ['wine', 'beer', 'wine', 'cigarettes', 'wine'] {'beer': 15.5, 'cigarettes': 13, 'soda':…
def print_main_menu(menu): """ Given a dictionary with the menu, prints the keys and values as the formatted options. Adds additional prints for decoration and outputs a question "What would you like to do?" """ if __name__ == "__main__": the_menu = {} # TODO 1: add the options from the instructions opt = None while True: # print_main_menu(...) # TODO 1: uncomment, define the function, and call with the menu as an argument print("::: Enter an option") opt = input("> ") if opt == ...: # TODO 2: make Q or q quit the program print("Goodbye!\n") break # exit the main `while` loop else: if ...: # TODO 3: check of the character stored in opt is in the_menu dictionary print(f"You selected option {opt} to > {the_menu[opt]}.") else: print(f"WARNING: {opt} is an invalid option.\n")
Given a student information in a dictionary format: stud_info = { 'stud1': {'name': 'Juan', 'id_no': 2020123}, 'stud2': {'name': 'Maria', 'id_no': 2020124}, 'stud3': {'name': 'Petra', 'id_no': 2020125} } Write a menu driven Phyton program that can a) Display the student information b) Change student information c) Add student in the dictionary d) Delete student in the dictionary
Code in pyhton. 2.Assume the following list exists: numbers = [1, 2, 3, 4, 5] Write a statement that uses a dictionary comprehension to create a dictionary in which each element contains a number from the numbers list as its key, and the product of that number times 10 as its value. In other words, the dictionary should contain the following elements: {1: 10, 2: 20, 3: 30, 4: 40, 5: 50}
Overview Your program will start by creating a dictionary called_guy_dict1 with the following keys: • name • age • scout rank • scout badges The name is Jimmer, the age is 23, the rank is Eagle, and the badges will be a blank list. After you create the dictionary you will prompt the user to enter the three badges. You will think print the raw dictionary. Expected Output Example 1 I know Jimmer has three scout badges, what are they? The first badge is: Archery The econd badge is: Can The third badge is: Covert Intel {'name': 'Jimmer', 'age': 23, 'scout rank': 'Eagle', 'scout badges': ['Archery', 'Camping', 'Covert Intel']} Specifications • You should submit a single file called M4A4.py • It should follow the submission standards outlined here: Submission Standards • Your program should start by defining guy_dict1 as described above. scout badges should start as an empty list and be filled by the user input. • There should be no loops. Tips and Tricks It's as simple as it seems.
Assume the following list exists: names = ['Chris', 'Katie', 'Joanne', 'Kurt'] Write a statement that uses a dictionary comprehension to create a dictionary named X in which each element contains the length of a name from the list as the key, and the corresponding name's initial character as its value.
▾ Part 4: Order Up! Complete the function order lunches, which takes two arguments: • stock: A dictionary that contains menu items available for purchase at a restaurant. The dictionary maps each item's name to an integer that represents how many of each item is available (e.g., 'soda': 4). orders: A list of strings representing items that patrons at the restaurant have ordered. The list might include items not available for purchase. The function iterates over the orders list, treating each string in the list as a key in the stock dictionary. If the key is present in the dictionary, the function decrements the value associated with the key (provided that doing so would not make the value negative). The function also returns the total number of valid items purchased (as an integer). The function simply ignores strings in orders that are not valid keys in stock. As an example, suppose stock were the dictionary {soda': 0, 'burger: 3, 'chips': 5, pizza': 7} and orders were [soda',…
In Python NO IMPORT PICKLE Please check pictures and fix code. Write a program that keeps names and email addresses in a dictionary as key-value pairs. This is the Required Output example: Menu ---------------------------------------- 1. Look up an email address 2. Add a new name and email address 3. Change an existing email address 4. Delete a name and email address 5. Quit the program Enter your choice: 2 Enter name: John Enter email address: John@yahoo.com That name already exists Menu ---------------------------------------- 1. Look up an email address 2. Add a new name and email address 3. Change an existing email address 4. Delete a name and email address 5. Quit the program Enter your choice: 2 Enter name: Jack Enter email address: Jack@yahoo.com Name and address have been added Menu ---------------------------------------- 1. Look up an email address 2. Add a new name and email address 3. Change an existing email address 4. Delete a name and email address 5.…
Overview This is a review assignment where you will use multiple tools you have picked up so far throughout the course. If you're confused about how to do something make sure you look back at earlier assignments. In this program you will start by declaring an empty dictionary named population_dict. Then you will use a while-loop to prompt a user for a series of cities and their populations, storing the input in population_dict). After this you will prompt the user to decide what is the maximum population for a city to be considers a small down. Finally, you will open a file called populationdata.txt where you will write the results. Expected Output Example of standard out (the console): What is next city? (enter q to quit) Long Beach What is the population of Long Beach? 362000 What is next city? (enter q to quit) Los Angeles What is the population of Los Angeles? 382000000 What is next city? (enter q to quit) San Diego What is the population of San Diego? 136000000 What is next city?…