Python OrderedDict - LRU

from time import time

class TimeBoundedLRU:
    "LRU Cache that invalidates and refreshes old entries."

    def __init__(self, func, maxsize=128, maxage=30):
        self.cache = OrderedDict()      # { args : (timestamp, result)}
        self.func = func
        self.maxsize = maxsize
        self.maxage = maxage

    def __call__(self, *args):
        if args in self.cache:
            self.cache.move_to_end(args)
            timestamp, result = self.cache[args]
            if time() - timestamp <= self.maxage:
                return result
        result = self.func(*args)
        self.cache[args] = time(), result
        if len(self.cache) > self.maxsize:
            self.cache.popitem(0)
        return result

Source: docs.python.org

Similar codes

0 vote197 views1 answer
ValueError: columns overlap but no suffix specified:
Python
1 vote159 views1 answer
How to save inputs python
Python
0 vote151 views1 answer
Python How To Remove Commas From String
Python
0 vote151 views1 answer
Sprints for fat loss
Python
1 vote161 views1 answer
How to equal two arrays in python with out linking them
Python
1 vote172 views1 answer
Python opencv number of frames
Python
-1 vote148 views1 answer
Function TBone() if 2=2 then print("Sup") end
Python
0 vote152 views2 answers
ArgumentParser(parent)
Python
15 votes170 views5 answers
Confusion matrix python code
Python
0 vote189 views3 answers
How to print tables using python
Python