Kaydet (Commit) 632a0c14 authored tarafından Nick Coghlan's avatar Nick Coghlan

Remove some lingering remnants of the short-lived functools.lfu_cache

üst ad1e0c5e
......@@ -36,33 +36,6 @@ The :mod:`functools` module defines the following functions:
.. versionadded:: 3.2
.. decorator:: lfu_cache(maxsize)
Decorator to wrap a function with a memoizing callable that saves up to the
*maxsize* most frequent calls. It can save time when an expensive or I/O
bound function is periodically called with the same arguments.
The *maxsize* parameter defaults to 100. Since a dictionary is used to cache
results, the positional and keyword arguments to the function must be
hashable.
The wrapped function is instrumented with two attributes, :attr:`hits`
and :attr:`misses` which count the number of successful or unsuccessful
cache lookups. These statistics are helpful for tuning the *maxsize*
parameter and for measuring the cache's effectiveness.
The wrapped function also has a :attr:`clear` attribute which can be
called (with no arguments) to clear the cache.
A `LFU (least frequently used) cache
<http://en.wikipedia.org/wiki/Cache_algorithms#Least-Frequently_Used>`_
is indicated when the pattern of calls does not change over time, when
more the most common calls already seen are the best predictors of the
most common upcoming calls (for example, a phonelist of popular
help-lines may have access patterns that persist over time).
.. versionadded:: 3.2
.. decorator:: lru_cache(maxsize)
Decorator to wrap a function with a memoizing callable that saves up to the
......
......@@ -200,7 +200,7 @@ Library
- Issue #1286: Allow using fileinput.FileInput as a context manager.
- Add lfu_cache() and lru_cache() decorators to the functools module.
- Add lru_cache() decorator to the functools module.
Tools/Demos
-----------
......
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