#!/usr/bin/python3

# Copyright (C) 2014 Steve Litt, Expat license, http://directory.fsf.org/wiki/License:Expat

import copy
class Person:
    def __init__(self, fname, lname):
        self.fname = fname
        self.lname = lname
    def showname(self):
        print('{} {}'.format(
            self.fname, self.lname))

a = Person('Steve', 'Litt')
b = a
c = copy.deepcopy(a)
d = a

a.showname()
b.showname()
c.showname()
d.showname()

b.fname = 'Rena'

print('\n======\n')
a.showname()
b.showname()
c.showname()
d.showname()