code: def dist(self, src, tar, qval=2, pval=1, alphabet=None):
          
          return self.dist_abs(src, tar, qval, pval, True, alphabet)
docs: Return normalized Minkowski distance of two strings.
  
          The normalized Minkowski distance :cite:`Minkowski:1910` is a distance
          metric in :math:`L^p`-space, normalized to [0, 1].
  
          Parameters
          ----------
          src : str
              Source string (or QGrams/Counter objects) for comparison
          tar : str
              Target string (or QGrams/Counter objects) for comparison
          qval : int
              The length of each q-gram; 0 for non-q-gram version
          pval : int or float
              The :math:`p`-value of the :math:`L^p`-space
          alphabet : collection or int
              The values or size of the alphabet
  
          Returns
          -------
          float
              The normalized Minkowski distance
  
          Examples
          --------
          >>> cmp = Minkowski()
          >>> cmp.dist('cat', 'hat')
          0.5
          >>> round(cmp.dist('Niall', 'Neil'), 12)
          0.636363636364
          >>> round(cmp.dist('Colin', 'Cuilen'), 12)
          0.692307692308
          >>> cmp.dist('ATCG', 'TAGC')
          1.0