Serializable.py

# -*- coding: utf-8 -*-

import pickle

class Serializable():
    def __init__(self, filename):
        self.filename = filename

    @classmethod
    def open(cls, filename):
        with open(filename, 'rb') as in_file:
            me = pickle.load(in_file)
        return me

    def save(self):
        with open(self.filename, 'wb') as out_file:
            pickle.dump(self, out_file)