code: def _EuclidianDistances(self,slist):
      
      e_dists2 = [transitfeed.ApproximateDistanceBetweenStops(stop, tail) for
                  (stop,tail) in itertools.izip(slist, slist[1:])]
  
      return e_dists2
docs: Calculate euclidian distances between stops.
  
      Uses the stoplists long/lats to approximate distances
      between stations and build a list with y-coordinates for the
      horizontal lines in the graph.
  
      Args:
        # Class Stop is defined in transitfeed.py
        stoplist: [Stop, Stop, ...]
  
      Returns:
        # One integer for each pair of stations
        # indicating the approximate distance
        [0,33,140, ... ,X]