This programming language misconception is about the meaning of the return-statement.

Incorrect and Correct Conception

Convince Yourself

You see that the return-statement in accelerate_engine only returns back to the caller (push_pedal), which then prints "end pushing". Thus, return only unwinds one stack frame.

Learn More

If you would like to learn more about this misconception, including its possible origins, symptoms students who hold this misconception might exhibit, the related programming language concepts, links to the corresponding parts of the Python language specification, and related misconceptions, check out ReturnUnwindsMultipleFrames in the progmiscon.org misconception inventory.