python-cashed 
Simple caching using decorators
Intallation
pip install cashed
Usage
The cached decorator requires the arguments of the wrapped function to be hashable.
cached accepts arguments capacity and seconds to limit the size of the cache and limit age of cached items.
cached functions similarly to functools.lru_cache with the additional of the optional time constraint.
import time
from cashed import cached
@cached(capacity=100, seconds=5)
def fib(n):
if n == 0 or n == 1:
return n
return fib(n-1) + fib(n-2)
fib(100) # -> 354224848179261915075L
fib.cache_info() # -> {'seconds': 5, 'hits': 98, 'capacity': 100, 'misses': 101, 'size': 100}
time.sleep(5)
fib.cache_info() # -> {'hits': 98, 'capacity': 100, 'seconds': 5, 'misses': 101, 'size': 0}
