about the encoding problem

I use PYTHON 3.6.3 ,when i run your code,i get the error: File "eval/verification.py", line 186, in load_bin bins, issame_list = pickle.load(open(path, 'rb')) UnicodeDecodeError: 'ascii' codec can't decode byte 0xff in position 0: ordinal not in range(128)
I have tried many method ,but can't solve it.....should i change the python version to 2.7 or is there any other method,,,,please help