Chapter 6 - Part Two: How to Work with Lists and Tuples

What does the add_to_list() function do in the given code?

The add_to_list() function

def add_to_list(list, item):

list.append(item) # list object changed

The calling code in the main() function

# list object created

inventory = ["staff", "hat", "bread"]

 

add_to_list(inventory, "robe")

print(inventory) # ["staff", "hat", "bread", "robe"]

 

# NOTE: no need to return list object

• Adds an element to the end of a list

• Removes an element from a list

• Sorts the list in ascending order

• Clears all elements from the list

Why is there no need to return the list object in the add_to_list() function?

The add_to_list() function

def add_to_list(list, item):

list.append(item) # list object changed

The calling code in the main() function

# list object created

inventory = ["staff", "hat", "bread"]

 

add_to_list(inventory, "robe")

print(inventory) # ["staff", "hat", "bread", "robe"]

 

# NOTE: no need to return list object

• Because the list is immutable.

• Because the list is passed by reference.

• Because the function automatically returns the list.

• Because the list is a global variable.

Based on the hierarchy chart for the Movie List program, which of the following is not a function listed under 'main'?

• display menu

• list movies

• add movie

• search movie

What is the purpose of the 'display_menu' function in the Movie List program?

• To add a new movie to the list

• To display the list of movies

• To show the available options to the user

• To delete a movie from the list

Which command in the 'display_menu' function is used to add a movie?

• list

• add

• del

• exit

How does the 'list' function work in the Movie List program?

• It adds a new movie to the list.

• It removes a movie from the list.

• It displays all movies in the list.

• It sorts the movies in the list alphabetically.

What is the purpose of the 'delete' function in the Movie List program?

• To add a new movie to the list

• To remove a movie from the list

• To update the details of a movie

• To sort the movies in the list

Which of the following movies is not in the initial 'movie_list'?

• Monty Python and the Holy Grail

• On the Waterfront

• Cat on a Hot Tin Roof

• The Godfather

What will happen if the user inputs a number greater than the length of 'movie_list' in the 'delete' function?

• The function will delete the last item in the list.

• The function will throw an IndexError.

• The function will do nothing.

• The function will delete the first item in the list.

What is the purpose of the 'while True:' loop in the Movie List program?

• To create an infinite loop until a condition is met to break it.

• To iterate over a list of movies.

• To execute a block of code a specific number of times.

• To handle exceptions in the program.