#!/usr/bin/env python # Filename: using_dict.py # 'ab' is short for 'a'ddress'b'ook ab={ 'Swaroop' : 'swaroopch@byteofpython.info', 'Larry' : 'larry@wall.org', 'Matsumoto' : 'matz@ruby-lang.org', 'Spammer' : 'spammer@hotmail.com' } print "Swaroop's address is %s" %ab['Swaroop'] # Adding a key/value pair ab['Guido']='guido@python.org' # Deleting a key/value pair del ab['Spammer'] print '\nThere are %d contacts in the address-book\n' %len(ab) for name,address in ab.items(): print 'Contact %s at %s' %(name,address) if 'Guido' in ab: # OR ab.has_key('Guido') print "\nGuido's address is %s" %ab['Guido'] 
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