code: def print_coords(rows, prefix=''):
      
      lat = [row['lat'] for row in rows]
      lon = [row['lon'] for row in rows]
      print('COORDS'+'-' * 5)
      print("%slat, %slon = %r, %r" % (prefix, prefix, lat, lon))
      print('-'*5)
docs: Print coordinates within a sequence.
  
      This is only used for debugging.  Printed in a form that can be
      pasted into Python for visualization.