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3 changes: 2 additions & 1 deletion cache/lru.py
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
from collections import OrderedDict
import copy


class LRU(OrderedDict):
Expand All @@ -7,7 +8,7 @@ def __init__(self, maxsize, *args, **kwargs):
super().__init__(*args, **kwargs)

def __getitem__(self, key):
value = super().__getitem__(key)
value = copy.deepcopy(super().__getitem__(key))
self.move_to_end(key)
return value

Expand Down