TensorFlow when running Python convolutional.py

Traceback (most recent):
File "convolutional.py", line 326, in <module>
Tf.app.run ()
File "/library/frameworks/python.framework/versions/2.7/lib/python2.7/site-packages/tensorflow/python/platform/ app.py ", line +, in run
Sys.exit (Main (SYS.ARGV))
File "convolutional.py", line 138, in main
Train_data = Extract_data (Train_data_filename, 60000)
File "convolutional.py", line-in Extract_data
BUF = Bytestream.read (image_size * image_size * num_images * num_channels)
File "/library/frameworks/python.framework/versions/2.7/lib/python2.7/gzip.py", line 268, in read
Self._read (ReadSize)
File "/library/frameworks/python.framework/versions/2.7/lib/python2.7/gzip.py", line 315, in _read
Self._read_eof ()
File "/library/frameworks/python.framework/versions/2.7/lib/python2.7/gzip.py", line 354, in _read_eof
Hex (SELF.CRC)))
IOERROR:CRC check failed 0xd87082d! = 0x6f522bel

Because the data set is incomplete, go to the official website to download

http://yann.lecun.com/exdb/mnist/

Then copy to TensorFlow minist under the Data folder to overwrite

TensorFlow when running Python convolutional.py