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ached decorator for functions

Author:
pawnhearts
Posted:
January 7, 2010
Language:
Python
Version:
1.1
Score:
1 (after 1 ratings)

example:

@cached() def foo(slug): return Egg.objects.filter(slug=slug)

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from django.core.cache import cache
from hashlib import sha256

def cached(ctime=3600):
    def decr(func):
        def wrp(*args,**kargs):
            key = sha256(func.func_name+repr(args)+repr(kargs)).hexdigest()
            res = cache.get(key)
            if res is None:
                res = func(*args,**kargs)
                cache.set(key,res,ctime)
            return res
        return wrp
    return decr

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