code: def compute_pointwise_distances(self, other, default=None):
          
          import shapely.geometry
          from .kps import Keypoint
  
          if isinstance(other, Keypoint):
              other = shapely.geometry.Point((other.x, other.y))
          elif isinstance(other, LineString):
              if len(other.coords) == 0:
                  return default
              elif len(other.coords) == 1:
                  other = shapely.geometry.Point(other.coords[0, :])
              else:
                  other = shapely.geometry.LineString(other.coords)
          elif isinstance(other, tuple):
              assert len(other) == 2
              other = shapely.geometry.Point(other)
          else:
              raise ValueError(
                  ("Expected Keypoint or LineString or tuple (x,y), "
                   + "got type %s.") % (type(other),))
  
          return [shapely.geometry.Point(point).distance(other)
                  for point in self.coords]
docs: Compute the minimal distance between each point on self and other.
  
          Parameters
          ----------
          other : tuple of number \
                  or imgaug.augmentables.kps.Keypoint \
                  or imgaug.augmentables.LineString
              Other object to which to compute the distances.
  
          default
              Value to return if `other` contains no points.
  
          Returns
          -------
          list of float
              Distances to `other` or `default` if not distance could be computed.