Add: load param encoding='latin1'

[sleepless-se]

When I run this code on GoogleColab (python v3.6)

I got this error. [UnicodeDecodeError: 'ascii' codec can't decode byte 0x8b in position 6: ordinal not in range(128) site:stackoverflow.com] https://stackoverflow.com/questions/42940851/unicodedecodeerror-ascii-codec-cant-decode-byte-0x8b

And python3 doesn't have cPickle, so I replace it by pickle.