我试图加载MNIST数据集链接

here在Python 3.2使用此程序：

import pickle

import gzip

import numpy

with gzip.open('mnist.pkl.gz', 'rb') as f:

l = list(pickle.load(f))

print(l)

不幸的是，它给我的错误：

Traceback (most recent call last):

File "mnist.py", line 7, in

train_set, valid_set, test_set = pickle.load(f)

UnicodeDecodeError: 'ascii' codec can't decode byte 0x90 in position 614: ordinal not in range(128)

然后我试图解码Python 2.7中的pickled文件，并重新编码。所以，我在Python 2.7中运行这个程序：

import pickle

import gzip

import numpy

with gzip.open('mnist.pkl.gz', 'rb') as f:

train_set, valid_set, test_set = pickle.load(f)

# Printing out the three objects reveals that they are

# all pairs containing numpy arrays.

with gzip.open('mnistx.pkl.gz', 'wb') as g:

pickle.dump(

(train_set, valid_set, test_set),

g,

protocol=2) # I also tried protocol 0.

它运行没有错误，所以我重新编译这个程序在Python 3.2：

import pickle

import gzip

import numpy

# note the filename change

with gzip.open('mnistx.pkl.gz', 'rb') as f:

l = list(pickle.load(f))

print(l)

但是，它给了我一样的错误，以前。如何让这个工作？