Remove duplicated lists in list of lists in Python

Question

I\'ve seen some questions here very related but their answer doesn\'t work for me. I have a list of lists where some sublists are repeated but their elements may be disorder

Answer 1

If you don't care about the order for lists and sublists (and all items in sublists are unique):

result = set(map(frozenset, g))

If a sublist may have duplicates e.g., [1, 2, 1, 3] then you could use tuple(sorted(sublist)) instead of frozenset(sublist) that removes duplicates from a sublist.

If you want to preserve the order of sublists:

def del_dups(seq, key=frozenset):
    seen = {}
    pos = 0
    for item in seq:
        if key(item) not in seen:
            seen[key(item)] = True
            seq[pos] = item
            pos += 1
    del seq[pos:]

Example:

del_dups(g, key=lambda x: tuple(sorted(x)))

See In Python, what is the fastest algorithm for removing duplicates from a list so that all elements are unique while preserving order?