Does 'finally' always execute in Python?

Question

For any possible try-finally block in Python, is it guaranteed that the finally block will always be executed?

For example, let’s say I return while in an <

Answer 1

Well, yes and no.

What is guaranteed is that Python will always try to execute the finally block. In the case where you return from the block or raise an uncaught exception, the finally block is executed just before actually returning or raising the exception.

(what you could have controlled yourself by simply running the code in your question)

The only case I can imagine where the finally block will not be executed is when the Python interpretor itself crashes for example inside C code or because of power outage.