lru_py

A simple python implementation for the least recently used caching algorithm.

Hello, world

A simple use for LRU:

from lru_py import LRU

lru_cache = LRU(max_size = 2)
lru_cache['hello'] = 'world'
lru_cache['world'] = 'hello'
lru_cache['hello'] = 'world'
print "The first item now is: " + lru_cache.top()
print "The value of the key 'world' now is: " + lru_cache['world']
print "The first item now after retrieving the key 'world' is: " +lru_cache.top()

How To:

Initializing an object:

lru_cache = LRU(max_size = 2)

Setting a value, regular assigningment with the square bracket operator [ ]:

lru_cache['hello'] = 'world'

Retrieving a value, using square bracket operator [ ]:

lru_cache['hello']

Deletin, using the del and using square bracket operators:

del lru_cache['hello']

Retrieving the most recently used item:

lru_cache.top()

Installation

Automatic installation:

pip install lru_py

Manual installation: Download the latest source from GitHub.

tar xvzf lru_py-[VERSION].tar.gz
cd lru_py-[VERSION]
python setup.py build
sudo python setup.py install