#!/usr/bin/python

#A Python dictionary is a collection which contains key value pairs, where the

#key must be an immutable object

# you can also run this in the interpretor

phonebook = {'joe':'568-564-1109', 'ashish':'657-097-7862'}

print "\nPrinting the phonebook"

print phonebook

print "\nPrinting joe's phone number"

phonebook['joe']

print "\nAdding an element to the phonebook"

phonebook['joel'] = '657'

print "\nPrinting the phone number of the newly added contact joel"

print phonebook['joel']

print "\nItearating across the phonebook with it's keys"

for k in phonebook.keys():

print k, phonebook[k]

print "\nHere's how we remove an element from the dictionary - removing 'joel'"

del(phonebook['joel'])

print "\nIterating across the phonebook with key and value"

for k, v in phonebook.items():

print k, v