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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2019-10-18 07:21:05 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-10-18 07:21:05 (GMT) |
| commit | 380d443a6ac73cb4719d86fd5781544630bcec5e (patch) | |
| tree | 7fe9beb88cfc8f74632391cadfac4a345f90e205 /Doc/whatsnew | |
| parent | c615db608dbb36a5d10188f7d265dcec7bfcc3cf (diff) | |
| download | cpython-380d443a6ac73cb4719d86fd5781544630bcec5e.zip cpython-380d443a6ac73cb4719d86fd5781544630bcec5e.tar.gz cpython-380d443a6ac73cb4719d86fd5781544630bcec5e.tar.bz2 | |
Doc: Add missing entry for functools.cached_property (GH-16803)
(cherry picked from commit 93b81e1fcbeb61c1b49ac2fa52c5a0dff929940b)
Co-authored-by: Stéphane Wirtel <stephane@wirtel.be>
Diffstat (limited to 'Doc/whatsnew')
| -rw-r--r-- | Doc/whatsnew/3.8.rst | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst index e1388e2..ef4209f 100644 --- a/Doc/whatsnew/3.8.rst +++ b/Doc/whatsnew/3.8.rst @@ -685,6 +685,22 @@ than as a function returning a decorator. So both of these are now supported:: (Contributed by Raymond Hettinger in :issue:`36772`.) +Added a new :func:`functools.cached_property` decorator, for computed properties +cached for the life of the instance. :: + + import functools + import statistics + + class Dataset: + def __init__(self, sequence_of_numbers): + self.data = sequence_of_numbers + + @functools.cached_property + def variance(self): + return statistics.variance(self.data) + +(Contributed by Carl Meyer in :issue:`21145`) + gc -- |