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

9 votes233 views2 answers
Pandas to convert null values to mean in numeric column
Python
0 vote275 views1 answer
Pytorchvideo stack expects each tensor to be equal size, but got [89088] at entry 0 and [88064] at entry 1
Python
0 vote263 views1 answer
Python create random mac
Python
0 vote239 views1 answer
Seaborn modificar o tamanho dos graficos
Python
0 vote273 views1 answer
Relative text size put text cv2
Python
4 votes237 views10 answers
Roblox
Python
0 vote248 views1 answer
Pygame scroll event
Python
0 vote254 views2 answers
Run matlab code in python
Python
0 vote249 views1 answer
Python3 download file
Python
2 votes229 views1 answer
Who is a pythonista
Python