Get difference between two lists

Question

I have two lists in Python, like these:

temp1 = [\'One\', \'Two\', \'Three\', \'Four\']
temp2 = [\'One\', \'Two\']

I need to create a third

Answer 1

If you run into TypeError: unhashable type: 'list' you need to turn lists or sets into tuples, e.g.

set(map(tuple, list_of_lists1)).symmetric_difference(set(map(tuple, list_of_lists2)))

See also How to compare a list of lists/sets in python?