Join us and get access to hundreds of tutorials and a community of expert Pythonistas.

Unlock This Lesson

This lesson is for members only. Join us and get access to hundreds of tutorials and a community of expert Pythonistas.

Unlock This Lesson

Hint: You can adjust the default video playback speed in your account settings.
Hint: You can set the default subtitles language in your account settings.
Sorry! Looks like there’s an issue with video playback 🙁 This might be due to a temporary outage or because of a configuration issue with your browser. Please see our video player troubleshooting guide to resolve the issue.

Frozen Sets

jckichuk on July 10, 2020

Hey James, Is there a reason to use frozen sets for dictionary keys instead of a singleton tuple? Or is it just preference?

James Uejio RP Team on July 11, 2020

Hi jckichuck, frozen sets have the benefit of instant lookup and also other built in set methods, while tuples do not. However in the real world, it’s a very small optimization and you’ll probably see tuples as keys in most cases.

jckichuk on July 14, 2020

Makes sense. Thank you!

Become a Member to join the conversation.