title: Python: Iterating through a list and returning a tuple permutation for all strings in the list?
body: <p>I have a list of elements: list = ['A','B',C']. How do I iterate through this list and return the following: [AB, AC, BC]?</p>
  <p>note: I only want unique pairs, not [AA, BB, CC...] or [AB, BA, BC, CB...]</p>