Python: Determine if an unsorted list is contained in a 'list of lists', regardless of the order to the elements

Question

I have a similar question to this question: Determine if 2 lists have the same elements, regardless of order?

What is the best/quickest way to determine whether an unsor

Answer 1

Use sets

def doSomething(myDictOfLists, otherInputs):

    list1 = []
    ...  # do something here with `otherInputs' 
    ...  # which gives `list1' some values

    # now only append `list1' to `myListOfLists' if it doesn't already exist
    # and if it does exist, remove it
    list1Set = set(list1)
    if list1Set not in myDictOfLists:
        myDictOfLists[list1Set] = list1

    return myDictOfLists