How can I create a Set of Sets in Python?
Python's complaining because the inner set objects are mutable and thus not hashable. The solution is to use frozenset for the inner sets, to indicate that you have no intention of modifying them.
People already mentioned that you can do this with a frozenset(), so I will just add a code how to achieve this:
For example you want to create a set of sets from the following list of lists:
t = [[], [1, 2], [5], [1, 2, 5], [1, 2, 3, 4], [1, 2, 3, 6]]you can create your set in the following way:
t1 = set(frozenset(i) for i in t)