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gh-104112: link from cached_property docs to method-caching FAQ (#104113)

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Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
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Carl Meyer 2023-05-04 16:38:53 -06:00 • committed by GitHub
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Doc/library/functools.rst
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@ -110,18 +110,10 @@ The :mod:`functools` module defines the following functions:
``__slots__`` without including ``__dict__`` as one of the defined slots ``__slots__`` without including ``__dict__`` as one of the defined slots
(as such classes don't provide a ``__dict__`` attribute at all). (as such classes don't provide a ``__dict__`` attribute at all).
If a mutable mapping is not available or if space-efficient key sharing If a mutable mapping is not available or if space-efficient key sharing is
is desired, an effect similar to :func:`cached_property` can be achieved desired, an effect similar to :func:`cached_property` can also be achieved by
by a stacking :func:`property` on top of :func:`cache`:: stacking :func:`property` on top of :func:`lru_cache`. See
:ref:`faq-cache-method-calls` for more details on how this differs from :func:`cached_property`.
class DataSet:
def __init__(self, sequence_of_numbers):
self._data = sequence_of_numbers
@property
@cache
def stdev(self):
return statistics.stdev(self._data)
.. versionadded:: 3.8 .. versionadded:: 3.8