The update() Method

The update() method in Python allows you to add multiple elements to a set at once. This method takes an iterable (like a list, tuple, or another set) and adds its elements to the existing set.

The update() method can accept:

Lists: [movie1, movie2, ...];
Tuples: (movie1, movie2, ...);
Other Sets: {movie1, movie2, ...}.


              12345678
            
# Original set of favorite movies
favorite_movies = {"Inception", "Interstellar", "Tenet"}

# Adding multiple new movies
favorite_movies.update(["Tenet", "Memento", "The Prestige"])

# Print the updated set
print(favorite_movies)

Note

If any element being added already exists in the set, it will not be duplicated. The order of elements in a set is not guaranteed and may vary.

Task

Swipe to show code editor

You've watched a few more movies and want to add multiple titles to your favorite_movies set. Use the update() method to add the movies "Memento" and "The Prestige". Print the updated set.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 4. Chapter 3

The update() Method

The update() method can accept:

Lists: [movie1, movie2, ...];
Tuples: (movie1, movie2, ...);
Other Sets: {movie1, movie2, ...}.


              12345678
            
# Original set of favorite movies
favorite_movies = {"Inception", "Interstellar", "Tenet"}

# Adding multiple new movies
favorite_movies.update(["Tenet", "Memento", "The Prestige"])

# Print the updated set
print(favorite_movies)

Note

If any element being added already exists in the set, it will not be duplicated. The order of elements in a set is not guaranteed and may vary.

Task

Swipe to show code editor

You've watched a few more movies and want to add multiple titles to your favorite_movies set. Use the update() method to add the movies "Memento" and "The Prestige". Print the updated set.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 4. Chapter 3

Switch to desktop for real-world practiceContinue from where you are using one of the options below