python_getitemclassEx

>>> class Library(object):
...     def __init__(self):                                                     
...             self.books = { 'title' : object, 'title2' : object, 'title3' : object, }
...     def __getitem__(self, i):
...             return self.books[i]
...     def __iter__(self):
...             return self.books.itervalues()
... 
>>> library = Library()
>>> library['title']
<type 'object'>
>>> for book in library:
...     print book
... 
<type 'object'>
<type 'object'>
<type 'object'>