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Support cache sizes.

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Raymond Hettinger 2010-08-14 23:52:08 +00:00
parent a893927491
commit 0f56e90f05
2 changed files with 49 additions and 1 deletions
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2
Lib/functools.py
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@ -144,7 +144,7 @@ def lfu_cache(maxsize=100):
wrapper.misses += 1
if len(cache) > maxsize:
# purge the 10% least frequently used entries
for key, _ in nsmallest(maxsize // 10,
for key, _ in nsmallest(maxsize // 10 or 1,
use_count.items(),
key=itemgetter(1)):
del cache[key], use_count[key]