python pickle and shelve example

I.pickle exmaple

"""object save to file."""

import pickle

obj = Someobject()            
f = open(filename, 'wb')    
pickle.dump(obj, f)
f.close()

"""load file value"""

import pickle
f = open(filename, 'rb')
obj = pickle.load(f)
f.close()

II.shelve example

import shelve
obj = SomeObject()
db = shelve.open("filename")
db['key'] = obj
obj = db['key']   #index object value
db.close()        #close shelve and save to filename