An interactive quiz website that tests your knowledge of Python f-string edge cases and advanced features.

Take the quiz at: fstrings.wtf

This quiz explores the surprising, confusing, and powerful aspects of Python f-strings through 20 carefully crafted questions. While f-strings seem simple on the surface, they have many hidden features and edge cases that can trip up even experienced Python developers.

Made by Armin Ronacher, motivated late at night by Lukasz Langa and Yury Selivanov at EuroPython 2025.

Content is artisinal, code is vibe.

Remember: f-strings are powerful, but with great power comes great responsibility... and occasionally great confusion!