Python LRU Cache Decorator Per Instance

Question

Using the LRU Cache decorator found here: http://code.activestate.com/recipes/578078-py26-and-py30-backport-of-python-33s-lru-cache/

from lru_cache import lr         


        

Answer 1

These days, methodtools will work

from methodtools import lru_cache
class Test:
    @lru_cache(maxsize=16)
    def cached_method(self, x):
         return x + 5

You need to install methodtools

pip install methodtools

If you are still using py2, then functools32 also is required

pip install functools32