import sys
import time
if sys.version_info[0] == 2:
    import cPickle as pickle
else:
    import pickle


lst = [0]*10**6

f = open("tst", "wb")
t = time.time()
pickle.dump(lst, f, protocol=2)
print(time.time()-t)
f.close()

f = open("tst", "rb")
t = time.time()
pickle.load(f)
print(time.time()-t)
f.close()