O A dictionary can contain any object type except another dictionary. O All the keys in a dictionary must be of the same type. O Dictionaries are accessed by key. O Items are accessed by their position in a dictionary. O All of them are correct

13. While dictionaries are designed so that we can find a value based on a key, every so often we need to perform a reverse lookup. For example, imagine a dictionary where the keys are names and the values are phone numbers. Usually we want to find the phone number based on the name, but occasionally you might need to find a name based on the phone number. Write a function called reverse_lookup(dictionary, value) that returns all the keys in the dictionary associated with the specified value. Note: In dictionaries, the keys are guaranteed to be unique, but the values are not. So your function should return a list containing all of the matching keys (if any) Example: Given this dictionary, groups = {'Apple': 'Fruit', 'Spinach': 'Vegetable', 'Banana': 'Fruit'} reverse_lookup (groups. Vegetable') ["Spinach'] reverse_lookup (groups, Fruit') ['Apple'. 'Banana'] reverse_lookup (groups. 'Meat') []

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…

How do I understand the functional requirements for this question, which is chapter 9 question 8

12 Language Python

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.

Exercise: Check Monster Character Exists Description In this series of exercises, you will create functions to create, modify and examine dictionaries that represent characters in an animated film, and the cast members who voice the characters. The keys of the dictionary will be character names. The values in the dictionary will be voice actor names. For this exercise, you will create a function that checks if a character is already in the dictionary. Files   monsterfunctions.py : set of functions to work with monster cast dictionaries.   Function Name has_character Parameters   monsters: a dictionary character: a string, the name of a character   Action Checks if character is a key in monsters. Return Value True if character is a key in monsters, otherwise False. Examples monsters = create_monster_cast() monsters = add_cast_member(monsters, "Mike", "William Crystal") has_character(monsters, "Mike") -> True has_character(monsters, "Sully") -> False

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.

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?…