[Tutor] Fibonacci series(perhaps slightly off topic)

[Emil]

Hello all

I have created a class called Fibs which allow you to access a specific number in the Fibonacci series(http://en.wikipedia.org/wiki/Fibonacci_number) But it seems to me that it is a bit inefficient, any suggestions on how to make it more efficient?

Here is the code:

class Fibs(object):

        def __init__(self):
                self.fibsseq = [0, 1]

        def __getitem__(self, key):
                for i in xrange(key):
                        self.fibsseq.append(self.fibsseq[-1] + self.fibsseq[-2]) 
                print self.fibsseq[key]


in advance, thank you 

- Emil Agerschou

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