message: Removed pathlib.
diff: from __future__ import absolute_import, division, print_function, unicode_literals
  from builtins import (bytes, str, open, super, range, zip, round, input, int, pow, object)
  -import os, glob, pathlib
  +import os, glob
  import numpy as np
  from ctypes import cdll, Structure, c_int, c_double, POINTER, byref
  