code: def unzip(iterable):
      
      return list(map(list, list(six.moves.zip(*iterable))))
docs: Unzip/transpose an iterable of tuples into a tuple of lists.
  
      WARNING: When given an empty iterable, this returns an empty list instead of a tuple. If you
      need a consistent interface then do something like this:
  
          left, right = unzip(two_columned_list) or ([], [])