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@giter
Last active August 29, 2015 14:05
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import time
__CACHE = {}
def cache(ns, key, val_func=None , ttl=None):
if ttl is None or ttl <= 0 :
return val_func()
now = int(time.time())
key = ns + ":" + key
val, exp = __CACHE.get(key, (None,-1) )
if (exp < 0 or exp < now) and val_func:
val = val_func()
__CACHE[key] = val, ttl+now
return val
if __name__ == "__main__":
a = 3
v = cache("A", "K", val_func=lambda : a+3 , 300)
print v
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