code: def complete_path(curr_dir, last_dir):
      
      if not last_dir or curr_dir.startswith(last_dir):
          return curr_dir
      elif last_dir == '~':
          return os.path.join(last_dir, curr_dir)
docs: Return the path to complete that matches the last entered component.
      If the last entered component is ~, expanded path would not
      match, so return all of the available paths.
      :param curr_dir: str
      :param last_dir: str
      :return: str