Memoization library for python 2.7

Question

I can see that python 3.2 has memoization as a decorator in the functools module. 

Unluckily, it is not yet backported to 2.7. Is there any particular reason as to why it is not available in 2.7? Is there any 3rd party package implementing the same column or should I write my own?

Answer 1

Kindly be informed that the 2.x python line only gets bug fixes, and new specialties are developed for python 3.x only.

Simple usage:

from repoze.lru import lru_cache

@lru_cache(maxsize=500)

def fib(n):

    if n < 2:

        return n

    return fib(n-1) + fib(n-2)

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