Python 3.15 Preview: Lazy Imports Quiz

Interactive Quiz ⋅ 12 Questions
By Joseph Peart

In this quiz, you’ll test your understanding of Python 3.15 Preview: Lazy Imports.

Python 3.15 adds a lazy keyword that puts off loading a module until the first time you use it. The import statement stays where it belongs, at the top of your file, but the work of running it moves to the moment something touches the module’s name.

By working through this quiz, you’ll revisit how the lazy keyword defers a module until something reads its name, how much startup time deferring the right imports can save, where Python refuses to accept the keyword, how __lazy_modules__ gets you the same deferral on older Pythons, and which imports have to stay eager.