import pickle
import cPickle
import pickletools

def f(e):
    print(e)
    pickletools.dis(eval(e))
    print('')

f("pickle.dumps('spam', 2)")
f("pickle.dumps('spam1'[:-1], 2)")
f("cPickle.dumps('spam', 2)")
f("cPickle.dumps('spam1'[:-1], 2)")