How to save objects in Python

Python provide module for us to save an object by using "pickle" module. You can save an object into a file for loading it in later use.

For example:

file1.py

import pickle

class Test:
    A = ''
    B = ''

f = open('pickle','w+')
ob = Test()
ob.A = 'A'
ob.B = 'B'
pickle.dump(ob, f)

file2.py

import pickle

class Test:
    pass

f = open('pickle','r+')
ob = ''
# If we don't have class template for loading object, 
# the error will occur.
ob = pickle.load(f)

print ob.A     # output: A

It's very simple in python to save state of the object ^^.
More detail at: http://docs.python.org/library/pickle.html