Pickle test

class Example:
    def __init__(self, x, y):
        self.x = x
        self.y = y
    def plus(self, x):
        self.x+=x
    @property
    def x(self):
        return self.x
    @property
    def y(self):
        return self.y
    def minus(self, x):
        self.x -= x
    @property
    def distance(self):
        return ((self.x**2)+(self.y**2)) ** 0.5

import pickle
f = open('путь_к_файлу_obj.txt', 'r')
zz = pickle.load(f)
print zz.distance, zz.x
f.close()