How does Python sort a list of sets?

Question

Python sorts lists of tuples by looking at the elements of the tuples, in order. Since sets are unordered, how does Python sort a list of sets?

Edit: The question an

Answer 1

Sets are partially ordered, so

the output of the list.sort() method is undefined for lists of sets.

https://docs.python.org/3/library/stdtypes.html#set