Hi,
since I guess many students use python 3 I publish this issue.
cPickle is available only for python 2, in python 3 you should use "import pickle"
"In Python3, importing pickle will automatically use the accelerated version if it is available."
where the accelerate version is cPickle.
p.s - I can't publish links here. maybe you can change it? ("Guests and low-karma users are not allowed to publish links on this site")