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Code Issues 32 Releases Wiki Activity

Fixed #21351 -- Replaced memoize with Python's lru_cache.

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Replaced the custom, untested memoize with a similar decorator from Python's
3.2 stdlib. Although some minor performance degradation (see ticket), it is
expected that in the long run lru_cache will outperform memoize once it is
implemented in C.

Thanks to EvilDMP for the report and Baptiste Mispelon for the idea of
replacing memoize with lru_cache.
This commit is contained in:
Bouke Haarsma
2013-11-01 21:15:41 +01:00
committed by Baptiste Mispelon
parent 6c5f5b9a41
commit 9b7455e918
13 changed files with 254 additions and 38 deletions
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2
docs/internals/deprecation.txt
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@@ -479,6 +479,8 @@ these changes.
* The ``zh-cn`` and ``zh-tw`` language codes will be removed and have been
replaced by the ``zh-hans`` and ``zh-hant`` language code respectively.
* The internal ``django.utils.functional.memoize`` will be removed.
2.0
---

10
docs/releases/1.7.txt
View File

@@ -752,3 +752,13 @@ recently introduced language codes ``zh-hans`` and ``zh-hant`` respectively.
If you use these language codes, you should rename the locale directories
and update your settings to reflect these changes. The deprecated language
codes will be removed in Django 1.9.
``django.utils.functional.memoize`` function
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The function ``memoize`` is deprecated and should be replaced by the
``functools.lru_cache`` decorator (available from Python 3.2 onwards).
Django ships a backport of this decorator for older Python versions and it's
available at ``django.utils.lru_cache.lru_cache``. The deprecated function will
be removed in Django 1.9.